Faculty Profiles - HALPERT Jonathan Eugene | The Hong Kong University of Science and Technology

Jonathan Eugene HALPERT

PhD in Physical Chemistry
Massachusetts Institute of Technology, 2008

Associate Professor
Department of Chemistry

(852) 3469 2628
jhalpert@ust.hk
Room 4545
Personal Web

Google Scholar

qM3pRGoAAAAJ

ORCID

0000-0002-9499-2658

ResearcherID

C-8329-2016

Scopus ID

9245319600

Research Interest Publications Projects Teaching Assignment RPG Supervision Space used

Research Interest

Energy conversion
Display technologies
Organic light emitting diode (OLED)
Nanomaterials
Solar cells and solar fuels

Publications

All Years 99 2025 8 2024 10 2023 8 2022 9 2021 11 2020 6 2019 47

2025 8

Dipole Moment Modulation of Terminal Groups Enables Asymmetric Acceptors Featuring Medium Bandgap for Efficient and Stable Ternary Organic Solar Cells

Angewandte Chemie - International Edition, v. 64, (3), article number e202415332
Zou, Bosen; Liang, Anhai; Ding, Pengbo; Yao, Jia; Zeng, Xianghao; Li, Hongxiang; Ma, Ruijie; Li, Chunliang; Wu, Weiwei; Chen, Dezhang; Qammar, Memoona; Yu, Han; Yi, Jicheng; Guo, Liang; Pun, Sai Ho; Halpert, Jonathan E.; Li, Gang; Kan, Zhipeng; Yan, He
Article

Indoor Organic Photovoltaics with Over 29% Efficiency and Great Stability Enabled by Giant Dimeric Acceptors with Hypsochromic Absorption and High Glass Transition Temperature

Advanced Science, v. 12, (44), article number e12690
Zou, Bosen; Ng, Ho Ming; Li, Zhengkai; Wang, Yan; Wang, Qingyuan; Chen, Dezhang; Yao, Zefan; Li, Hongxiang; Li, Chunliang; Zeng, Xianghao; Liu, Wei; Halpert, Jonathan E.; Hu, Huawei; Duan, Chunhui; Zhu, Zonglong; Wu, Tom; Wong, Wai Yeung; Zhang, Zhi Guo; Yan, He; Yu, Han
Article

Measuring the Effects of Slow Electron Transport in Cesium Copper Iodide Light-Emitting Diodes by Pulsed Voltage Operation

ACS Applied Electronic Materials, v. v.7, p. 7545-7552
KO, Pui Kei; TSANG, Hoi Lam Tammy; DING, Pengbo; HALPERT, Jonathan Eugene
Article

Photo-rechargeable Li-Ion Batteries with Lead-Free Double-Perovskite Halide Cs2NaBiI6

ACS Applied Materials Interfaces
Tewari, Neha; Lam, Davy; Ko, Pui Kei; Geng, Pai; Sung, Herman H. Y.; Li, C.-H. Angus; Williams, Ian Duncan; Halpert, Jonathan E.
Article

Shallow defects and optical properties of CsPbBr₃ thin films through noble gas ion beam defect engineering

Nanotechnology, v. 36, (6), article number 065202
Fiedler, Holger; Hardy, Jake; Halpert, Jonathan E.; Davis, Nathaniel J.L.K.; Kennedy, John
Article

Solvent-Induced Bright Emission in Lead-Free Organic–Inorganic Antimony Bromides with Reversible Transformation

Small Methods, v. 9, (2), article number 2400003
Li, Yanyan; Zhou, Zhicong; Xing, Zengshan; Ko, Pui Kei; Wong, Kam Sing; Sung, Herman H.Y.; Williams, Ian D.; Halpert, Jonathan E.
Article

Substituent-Tuned Dipole and Coordination Geometry in Methoxybenzohydrazides for Stable and Efficient Inverted Perovskite Solar Cells

Nano Letters, v. 25, (41), p. 15072-15080
Wu, Weiwei; Qammar, Memoona; Mi, Guojun; Tamtaji, Mohsen; Cui, Zewei; Li, Dongyang; Li, Jie; Zou, Bosen; Liu, Wei; Chen, Guanhua; Pun, Sai Ho; Halpert, Jonathan E.; Yan, He; Cheng, Chun
Article

The Deepest Blue: Major Advances and Challenges in Deep Blue Emitting Quasi-2D and Nanocrystalline Perovskite LEDs

Advanced Materials, v. 37, (23), article number 2407764
Ko, Pui Kei; Ge, Jianchao; Ding, Pengbo; Chen, Dezhang; Tsang, Hoi Lam Tammy; Kumar, Nitish; Halpert, Jonathan E.
Article

2024 10

Advancement in QDs for optoelectronic applications and beyond

Nano Research, v. 17, (12), p. 10426-10445
Qammar, Memoona; Tan, Max J.H.; Ding, Pengbo; Ge, Jianchao; Chan, Yinthai; Halpert, Jonathan E.
Article

Color Tuning in Cesium Lead Halide Nanocrystals via A-Site Substitution as an Alternative Method for Achieving Spectrally Stable Blue Perovskite Nanocrystal Light-Emitting Diodes

Chemistry of Materials, v. 36, (8), p. 3735-3744
Ko, Pui Kei; Chen, Dezhang; Li, C. H.Angus; Chan, Christopher Chang Sing; Sergeev, Aleksandr; Ding, Pengbo; Lam, Davy; Ouyang, Boyu; Guo, Liang; Wong, Kam Sing; Halpert, Jonathan E.
Article

Dual-Band Emission from Intrinsic and Extrinsic Self-Trapped Excitons in a Zero-Dimensional Copper Halide Cs₃Cu₂Br₅

Journal of Physical Chemistry Letters, v. 15, (40), p. 10146-10152
Xing, Zengshan; Qammar, Memoona; Sergeev, Aleksandr A.; Zhou, Zhicong; Geng, Pai; Chan, Christopher C.S.; Halpert, Jonathan E.; Wong, Kam Sing
Article

Formadinium Cation Doping Stabilized Ultra-deep-blue Lead Halide Perovskite Nanocrystal Light-emitting Diodes

Chemical Research in Chinese Universities, v. 40, (3), p. 556-560
Ko, Pui Kei; Halpert, Jonathan E.
Article

In Situ Surface Metal Passivation on AgBiS₂ Nanocrystals for Trap-Reduced Inverted Solar Cells

ACS Applied Energy Materials, v. 7, (19), p. 8271-8277
Zou, Bosen; Chen, Dezhang; Qammar, Memoona; Ding, Pengbo; Ko, Pui Kei; Wu, Weiwei; Shivarudraiah, Sunil B.; Yan, He; Halpert, Jonathan E.
Article

Intense Circular Dichroism and Spin Selectivity in AgBiS₂ Nanocrystals by Chiral Ligand Exchange

Advanced Materials, v. 36, (52), article number 2410087
Ding, Pengbo; Chen, Dezhang; Tamtaji, Mohsen; Hu, Sile; Qammar, Memoona; Ko, Pui Kei; Sergeev, Aleksandr A.; Zou, Bosen; Tang, Bing; Wong, Kam Sing; Guo, Liang; Chen, Guanhua; Rogach, Andrey L.; Halpert, Jonathan E.
Article

Nanomaterials for spin-based quantum information

Nanoscale, v. 17, (3), p. 1148-1170
Ding, Pengbo; Chen, Dezhang; Ko, Pui Kei; Qammar, Memoona; Geng, Pai; Guo, Liang; Halpert, Jonathan E.
Article

Precisely Controlling Polymer Acceptors with Weak Intramolecular Charge Transfer Effect and Superior Coplanarity for Efficient Indoor All-Polymer Solar Cells with over 27% Efficiency

Advanced Materials, v. 36, (32), article number 2405404
Zou, Bosen; Ng, Ho Ming; Yu, Han; Ding, Pengbo; Yao, Jia; Chen, Dezhang; Pun, Sai Ho; Hu, Huawei; Ding, Kan; Ma, Ruijie; Qammar, Memoona; Liu, Wei; Wu, Weiwei; Lai, Joshua Yuk Lin; Zhao, Chaoyue; Pan, Mingao; Guo, Liang; Halpert, Jonathan E.; Ade, Harald; Li, Gang; Yan, He
Article

Sterically Controlled Synthesis of Amine-Free CsPbBr₃ Nanoplatelets for Stable, Pure-Blue Light Emission

Angewandte Chemie - International Edition, v. 63, (8), article number e202317590
Chen, Dezhang; Wang, Tyler; Kei Ko, Pui; Shi, Jinquan; Liu, Mengxia; Halpert, Jonathan E.
Article

Strongly Confined and Spectrally Tunable CsPbBr₃ Quantum Dots for Deep Blue QD-LEDs

Advanced Optical Materials, v. 12, (11), article number 2302477
Ding, Pengbo; Ko, Pui Kei; Geng, Pai; Chen, Dezhang; Xing, Zengshan; Tsang, Hoi Lam Tammy; Wong, Kam Sing; Guo, Liang; Halpert, Jonathan E.
Article

2023 8

Amino Acid-Passivated Pure Red CsPbI₃ Quantum Dot LEDs

ACS Energy Letters, v. 8, (1), p. 410-416
Chen, Dezhang; Ko, Pui Kei; Li, C. H.Angus; Zou, Bosen; Geng, Pai; Guo, Liang; Halpert, Jonathan E.
Article

Carrier Dynamics of Efficient Triplet Harvesting in AgBiS₂/Pentacene Singlet Fission Solar Cells

Advanced Science, v. 10, (13), article number 2300177
Geng, Pai; Chen, Dezhang; Shivarudraiah, Sunil B.; Chen, Xihan; Guo, Liang; Halpert, Jonathan E.
Article

In Situ MAPbI₃ Perovskite Nanostructures Formed by a Poly[(phenylglycidyl ether)-co-formaldehyde] Epoxide for Enhanced Stability and Photoluminescence

ACS Applied Nano Materials, v. 6, (13), p. 12240-12247
Shivarudraiah, Sunil B.; Chan, Christopher C.S.; Chen, Dezhang; Zhou, Zhicong; Ng, Michael; Tewari, Neha; Tao, Chun Ki; Wong, Kam Sing; Halpert, Jonathan E.
Article

Mixed Ruddlesden–Popper and Dion–Jacobson Phase Perovskites for Stable and Efficient Blue Perovskite LEDs

Advanced Functional Materials, v. 33, (41), article number 2303301
Li, C. H.Angus; Ko, Pui Kei; Chan, Christopher C.S.; Sergeev, Aleksandr; Chen, Dezhang; Tewari, Neha; Wong, Kam Sing; Halpert, Jonathan E.
Article

Organic-inorganic halide perovskites for memristors

Journal of Semiconductors, v. 44, (9), article number 091604
Qammar, Memoona; Zou, Bosen; Halpert, Jonathan E.
Article

Organic-Inorganic Hybrid Alkali Copper Iodides for Bright Emission across the Visible Spectrum

Chemistry of Materials, v. 35, (3), p. 1318-1324
Li, Yanyan; Zhou, Zhicong; Sheong, Fu Kit; Xing, Zengshan; Wong, Kam Sing; Sung, Herman H.Y.; Williams, Ian D.; Halpert, Jonathan E.
Article

Splashing-Assisted Femtosecond Laser-Activated Metal Deposition for Mold- and Mask-Free Fabrication of Robust Microstructured Electrodes for Flexible Pressure Sensors

Small, v. 19, (24), article number 2207362
Ji, Yaqiang; Zhang, Yuan; Zhu, Jiaqi; Geng, Pai; Halpert, Jonathan E.; Guo, Liang
Article

Amino Acid-Passivated Pure Red CsPbI3 Quantum Dot LEDs

Chen, Dezhang; Halpert, Jonathan Eugene
Conference paper

2022 9

Barrierless Exciton Self-Trapping and Emission Mechanism in Low-Dimensional Copper Halides

Advanced Functional Materials, v. 32, (46), article number 2207638
Xing, Zengshan; Zhou, Zhicong; Zhong, Guohua; Chan, Christopher C.S.; Li, Yanyan; Zou, Xinhui; Halpert, Jonathan E.; Su, Haibin; Wong, Kam Sing
Article

Highly Stable Tetrahydrothiophene 1-Oxide Caged Copper Bromide and Chloride Clusters with Deep-Red to Near-IR Emission

Inorganic Chemistry, v. 61, (28), p. 10950-10956
Li, Yanyan; Zhou, Zhicong; Xing, Zengshan; Wong, Kam Sing; Sung, Herman H.Y.; Williams, Ian D.; Halpert, Jonathan E.
Article

How do molecular interactions affect fluorescence behavior of AIEgens in solution and aggregate states?

Science China Chemistry, v. 65, (1), p. 135-144
Yu, Ying; Xing, Hao; Zhou, Zhicong; Liu, Junkai; Sung, Herman H.Y.; Williams, Ian D.; Halpert, Jonathan E.; Zhao, Zheng; Tang, Ben Zhong
Article

Inkjet printed patterned bank structure with encapsulated perovskite colour filters for modern display

Nanoscale, v. 14, (22), p. 8060-8068
Kang, Chengbin; Zhou, Zhicong; Halpert, Jonathan E.; Srivastava, Abhishek K.
Article

Polarization anisotropy losses due to morphological instability in CsPbX₃ nanorods and strategies for mitigation

Journal of Materials Chemistry C, v. 10, (23), p. 8947-8954
Ng, Michael; Shivarudraiah, Sunil B.; Halpert, Jonathan E.
Article

Recent advancements in batteries and photo-batteries using metal halide perovskites

APL Materials, v. 10, (4), article number 040905
Tewari, Neha; Lam, Davy; Li, Cham Heng Angus; Halpert, Jonathan E.
Article

Solution-Processed Red, Green, and Blue Quantum Rod Light-Emitting Diodes

ACS Applied Materials and Interfaces, v. 14, (16), p. 18723-18735
Mallem, Kumar; Prodanov, Maksym F.; Dezhang, Chen; Marus, Mikita; Kang, Chengbin; Shivarudraiah, Sunil B.; Vashchenko, Valeri V.; Halpert, Jonathan E.; Srivastava, Abhishek K.
Article

Solution-Processed, Inverted AgBiS₂Nanocrystal Solar Cells

ACS Applied Materials and Interfaces, v. 14, (1), p. 1634-1642
Chen, Dezhang; Shivarudraiah, Sunil B.; Geng, Pai; Ng, Michael; Li, C. H.Angus; Tewari, Neha; Zou, Xinhui; Wong, Kam Sing; Guo, Liang; Halpert, Jonathan E.
Article

Synthesis of Cesium Copper Bromide Nanorods with Strong Linearly Polarized Emission

Advanced Optical Materials, v. 10, (21), article number 2201031
Ng, Michael; Geng, Pai; Shivarudraiah, Sunil B.; Guo, Liang; Halpert, Jonathan E.
Article

2021 11

“Simple” Aggregation-Induced Emission Luminogens for Nondoped Solution-Processed Organic Light-Emitting Diodes with Emission Close to Pure Red in the Standard Red, Green, and Blue Gamut

Advanced Photonics Research, v. v. 2, article number 2100004
ZHANG, Tianfu; ZHOU, Zhicong; ZHENG, Zheng; HALPERT, Jonathan Eugene; TANG, Benzhong; LAM, Wing Yip; ZHANG, Jianyu; YU, Ying
Article

Discovery of a New Intermediate Enables One-Step Deposition of High-Quality Perovskite Films via Solvent Engineering

Solar RRL, v. 5, (4), article number 2000712
Hu, Chen; Shivarudraiah, Sunil B.; Sung, Herman H.Y.; Williams, Ian D.; Halpert, Jonathan E.; Yang, Shihe
Article

Emergent electronic properties in Co-deposited superatomic clusters

The Journal of Chemical Physics, v. 155, (12), article number 124309
Fiedler, Holger; Schacht, Julia; Hammerschmidt, Lukas; Golovko, Vladimir; Gaston, Nicola; Halpert, Jonathan E.
Article

Improved brightness and efficiency of green quantum-rod-based light-emitting diodes

Digest of Technical Papers - SID International Symposium, v. 52, (1), p. 959-962
Mallem, Kumar; Prodanov, Maksym F.; Chen, Dezhang; Marus, Mikita; Vashchenko; Halpert, Jonathan E.; Srivastava, Abhishek K.
Article

Optically Clear Films of Formamidinium Lead Bromide Perovskite for Wide-Band-Gap, Solution-Processed, Semitransparent Solar Cells

ACS Applied Materials and Interfaces, v. 13, (31), p. 37223-37230
Shivarudraiah, Sunil B.; Tewari, Neha; Ng, Michael; Li, C. H.Angus; Chen, Dezhang; Halpert, Jonathan E.
Article

Photorechargeable Lead-Free Perovskite Lithium-Ion Batteries Using Hexagonal Cs₃Bi₂I₉Nanosheets

Nano Letters, v. 21, (13), p. 5578-5585
Tewari, Neha; Shivarudraiah, Sunil B.; Halpert, Jonathan E.
Article

Potassium and Rubidium Copper Halide A₂CuX₃(A = K, Rb, X = Cl, Br) Micro- And Nanocrystals with near Unity Quantum Yields for White Light Applications

ACS Applied Nano Materials, v. 4, (12), p. 14188-14196
Zhou, Zhicong; Li, Yanyan; Xing, Zengshan; Li, Zhi; Wong, Kam Sing; Halpert, Jonathan E.
Article

Progress in copper metal halides for optoelectronic applications

Materials Chemistry Frontiers, v. 5, (13), p. 4796-4820
Li, Yanyan; Zhou, Zhicong; Tewari, Neha; Ng, Michael; Geng, Pai; Chen, Dezhang; Ko, Pui Kei; Qammar, Memoona; Guo, Liang; Halpert, Jonathan E.
Article

Rapid Synthesis of Bright, Shape-Controlled, Large Single Crystals of Cs₃Cu₂X₅ for Phase Pure Single (X = Br, Cl) and Mixed Halides (X = Br/Cl) as the Blue and Green Components for Printable White Light-Emitting Devices

Advanced Materials Interfaces, v. 8, (20), article number 2101471
Zhou, Zhicong; Li, Yanyan; Xing, Zengshan; Sung, Herman H.Y.; Williams, Ian D.; Li, Zhi; Wong, Kam Sing; Halpert, Jonathan E.
Article

The Multiple Roles of Metal Ion Dopants in Spectrally Stable, Efficient Quasi-2D Perovskite Sky-Blue Light-Emitting Devices

Advanced Optical Materials, v. 9, (21), article number 2100860
Li, Cham Heng Angus; Geng, Pai; Shivarudraiah, Sunil Benachigere; Ng, Michael; Zhang, Xian Fu; Xu, Baomin; Guo, Liang; Halpert, Jonathan E.
Article

Tuning the Self-Trapped Emission: Reversible Transformation to 0D Copper Clusters Permits Bright Red Emission in Potassium and Rubidium Copper Bromides

ACS Energy Letters, v. 6, (12), p. 4383-4389
Li, Yanyan; Zhou, Zhicong; Sheong, Fu Kit; Xing, Zengshan; Lortz, Rolf; Wong, Kam Sing; Sung, Herman H.Y.; Williams, Ian D.; Halpert, Jonathan E.
Article

2020 6

All-Inorganic, Solution-Processed, Inverted CsPbI₃Quantum Dot Solar Cells with a PCE of 13.1% Achieved via a Layer-by-Layer FAI Treatment

ACS Applied Energy Materials, v. 3, (6), p. 5620-5627
Shivarudraiah, Sunil B.; Ng, Michael; Li, C. H.Angus; Halpert, Jonathan E.
Article

Large Photogain in Multicolor Nanocrystal Photodetector Arrays Enabling Room-Temperature Detection of Targets above 100 °c

ACS Photonics, v. 7, (11), p. 3078-3085
Cryer, Matthew E.; Browning, Leo A.; Plank, Natalie O.V.; Halpert, Jonathan E.
Article

Quantum-Dot Tandem Solar Cells Based on a Solution-Processed Nanoparticle Intermediate Layer

ACS Applied Materials and Interfaces, v. 12, (2), p. 2313-2318
Hu, Long; Wang, Yutao; Shivarudraiah, Sunil B.; Yuan, Jianyu; Guan, Xinwei; Geng, Xun; Younis, Adnan; Hu, Yicong; Huang, Shujuan; Wu, Tom; Halpert, Jonathan E.
Article

Recent advancements in near-infrared perovskite light-emitting diodes

ACS Applied Electronic Materials, v. 2, (11), p. 3470-3490
Vashishtha, Parth; Bishnoi, Swati; Angus Li, C. H.; Jagadeeswararao, Metikoti; Hooper, Thomas J.N.; Lohia, Naina; Shivarudraiah, Sunil B.; Ansari, Mohammed S.; Sharma, Shailesh N.; Halpert, Jonathan E.
Article

Room Temperature Synthesis of Stable, Printable Cs₃Cu₂X₅(X = I, Br/I, Br, Br/Cl, Cl) Colloidal Nanocrystals with Near-Unity Quantum Yield Green Emitters (X = Cl)

Chemistry of Materials, v. 32, (13), p. 5515-5524
Li, Yanyan; Vashishtha, Parth; Zhou, Zhicong; Li, Zhi; Shivarudraiah, Sunil B.; Ma, Chao; Liu, Junkai; Wong, Kam Sing; Su, Haibin; Halpert, Jonathan E.
Article

Single crystals of mixed br/cl and sn-doped formamidinium lead halide perovskites: Via inverse temperature crystallization

RSC Advances, v. 10, (7), p. 3832-3836
Ng, Michael; Halpert, Jonathan E.
Article

2019 6

Enhanced mobility in PbS quantum dot films: Via PbSe quantum dot mixing for optoelectronic applications

Journal of Materials Chemistry C, v. 7, (15), p. 4497-4502
Hu, Long; Huang, Shujuan; Patterson, Robert; Halpert, Jonathan E.
Article

High Efficiency Blue and Green Light-Emitting Diodes Using Ruddlesden-Popper Inorganic Mixed Halide Perovskites with Butylammonium Interlayers

Chemistry of Materials, v. 31, (1), p. 83-89
Vashishtha, Parth; Ng, Michael; Shivarudraiah, Sunil B.; Halpert, Jonathan E.
Article

Luminescent Down-Conversion Semiconductor Quantum Dots and Aligned Quantum Rods for Liquid Crystal Displays

Advanced Science, v. 6, (22), article number 1901345
Srivastava, Abhishek K.; Zhang, Wanlong; Schneider, Julian; Halpert, Jonathan E.; Rogach, Andrey L.
Article

The Future Is Blue (LEDs): Why Chemistry Is the Key to Perovskite Displays §

Chemistry of Materials, v. 31, (16), p. 6003-6032
Li, C. H.Angus; Zhou, Zhicong; Vashishtha, Parth; Halpert, Jonathan E.
Article

Ultrafast Spectrally Resolved Photoinduced Complex Refractive Index Changes in CsPbBr ₃ Perovskites

ACS Photonics, v. 6, (2), p. 345-350
Tamming, Ronnie R.; Butkus, Justinas; Price, Michael B.; Vashishtha, Parth; Prasad, Shyamal K.K.; Halpert, Jonathan E.; Chen, Kai; Hodgkiss, Justin M.
Article

Synthesis of CsPbBr3 Nanorods with Tuneable Optical Anisotropy for Optoelectronic Applications

Digest of Technical Papers - SID International Symposium / edited by Wang Baoping; Che Chi-Ming; Tang Ching W.; Shieh Han-Ping D.; Kwok Hoi S.; Xu Hongxing; Liu Ming; Dai Qionghai; Peng Shou; Yam Vivian Wing-Wah; Huang Wei; Wang Xiaomo; Cao Yong; Zheng Youliao; Hao Yue; Liu Yunqi; Ouyang Zhongcan; Wang Zhonglin; Xu Zuyan. John Wiley and Sons Inc, 2019, p. 949-952
Ng, Michael; Dudka, Tetiana; Zhang, Wanlong; Rogach, Andrey L.; Srivastava, Abhishek K.; Halpert, Jonathan E.
Conference paper

2018 5

300 nm Spectral Resolution in the Mid-Infrared with Robust, High Responsivity Flexible Colloidal Quantum Dot Devices at Room Temperature

ACS Photonics, v. 5, (8), p. 3009-3015
Cryer, Matthew E.; Halpert, Jonathan E.
Article

PbSe Quantum Dot Passivated Via Mixed Halide Perovskite Nanocrystals for Solar Cells With Over 9% Efficiency

Solar RRL, v. 2, (12), article number 1800234
Hu, Long; Zhang, Zhilong; Patterson, Robert J.; Shivarudraiah, Sunil B.; Zhou, Zhicong; Ng, Michael; Huang, Shujuang; Halpert, Jonathan E.
Article

Photo-Electrosensitive Memristor Using Oxygen Doping in HgTe Nanocrystal Films

ACS Applied Materials and Interfaces, v. 10, (22), p. 18927-18934
Cryer, Matthew E.; Fiedler, Holger; Halpert, Jonathan E.
Article

Room Temperature Mid-IR Detection through Localized Surface Vibrational States of SnTe Nanocrystals

ACS sensors, v. 3, (10), p. 2087-2094
Cryer, Matthew E.; Halpert, Jonathan E.
Article

Shape-, Size-, and Composition-Controlled Thallium Lead Halide Perovskite Nanowires and Nanocrystals with Tunable Band Gaps

Chemistry of Materials, v. 30, (9), p. 2973-2982
Vashishtha, Parth; Metin, Dani Z.; Cryer, Matthew E.; Chen, Kai; Hodgkiss, Justin M.; Gaston, Nicola; Halpert, Jonathan E.
Article

2017 5

A Hybrid Perovskite Solar Cell Modified With Copper Indium Sulfide Nanocrystals to Enhance Hole Transport and Moisture Stability

Solar RRL, v. 1, (8), article number 1700078
Ma, Yingzhuang; Vashishtha, Parth; Shivarudraiah, Sunil B.; Chen, Kai; Liu, Ye; Hodgkiss, Justin M.; Halpert, Jonathan E.
Article

Controlled Growth of CH₃NH₃PbI₃ Using a Dynamically Dispensed Spin-Coating Method: Improving Efficiency with a Reproducible PbI₂ Blocking Layer

ChemSusChem, v. 10, (12), p. 2677-2684
Ma, Yingzhuang; Vashishtha, Parth; Chen, Kai; Peach, Elijah L.; Ohayon, David; Hodgkiss, Justin M.; Halpert, Jonathan E.
Article

Dual-Functional Optoelectronic and Magnetic Pyrite/Iron Selenide Core/Shell Nanocrystals

Journal of Physical Chemistry C, v. 121, (14), p. 8220-8226
McGrath, Andrew J.; Yu, Chenlong; Fiedler, Holger; Butkus, Justinas; Hodgkiss, Justin M.; Halpert, Jonathan E.
Article

Field-Driven Ion Migration and Color Instability in Red-Emitting Mixed Halide Perovskite Nanocrystal Light-Emitting Diodes

Chemistry of Materials, v. 29, (14), p. 5965-5973
Vashishtha, Parth; Halpert, Jonathan E.
Article

The Evolution of Quantum Confinement in CsPbBr₃ Perovskite Nanocrystals

Chemistry of Materials, v. 29, (8), p. 3644-3652
Butkus, Justinas; Vashishtha, Parth; Chen, Kai; Gallaher, Joseph K.; Prasad, Shyamal K.K.; Metin, Dani Z.; Laufersky, Geoffry; Gaston, Nicola; Halpert, Jonathan E.; Hodgkiss, Justin M.
Article

2016 1

Identification of dipole disorder in low temperature solution processed oxides: Its utility and suppression for transparent high performance solution-processed hybrid electronics

Chemical Science, v. 7, (10), p. 6337-6346
Banger, Kulbinder; Warwick, Christopher; Lang, Jiang; Broch, Katharina; Halpert, Jonathan E.; Socratous, Josephine; Brown, Adam; Leedham, Timothy; Sirringhaus, Henning
Article

2015 4

Charge Dynamics in Solution-Processed Nanocrystalline CuInS₂ Solar Cells

ACS Nano, v. 9, (6), p. 5857-5867
Halpert, Jonathan E.; Morgenstern, Frederik S.F.; Ehrler, Bruno; Vaynzof, Yana; Credgington, Dan; Greenham, Neil C.
Article

Effect of carrier thermalization dynamics on light emission and amplification in organometal halide perovskites

Journal of Physical Chemistry Letters, v. 6, (1), p. 153-158
Chen, Kai; Barker, Alex J.; Morgan, Francis L.C.; Halpert, Jonathan E.; Hodgkiss, Justin M.
Article

Hot-carrier cooling and photoinduced refractive index changes in organic-inorganic lead halide perovskites

Nature Communications, v. 6, article number 8420
Price, Michael B.; Butkus, Justinas; Jellicoe, Tom C.; Sadhanala, Aditya; Briane, Anouk; Halpert, Jonathan E.; Broch, Katharina; Hodgkiss, Justin M.; Friend, Richard H.; Deschler, Felix
Article

Solution synthesis and optical properties of transition-metal-doped silicon nanocrystals

Journal of Physical Chemistry Letters, v. 6, (9), p. 1573-1576
McVey, Benjamin F.P.; Butkus, Justinas; Halpert, Jonathan E.; Hodgkiss, Justin M.; Tilley, Richard D.
Article

2012 6

A novel and highly efficient photocatalyst based on P ₂₅- graphdiyne nanocomposite

Small, v. 8, (2), p. 265-271
Wang, Shuo; Yi, Luoxin; Halpert, Jonathan E.; Lai, Xiaoyong; Liu, Yuanyuan; Cao, Hongbin; Yu, Ranbo; Wang, Dan; Li, Yuliang
Article

Accurate control of multishelled ZnO hollow microspheres for dye-sensitized solar cells with high efficiency

Advanced Materials, v. 24, (8), p. 1046-1049
Dong, Zhenghong; Lai, Xiaoyong; Halpert, Jonathan E.; Yang, Nailiang; Yi, Luoxin; Zhai, Jin; Wang, Dan; Tang, Zhiyong; Jiang, Lei
Article

Granum-like stacking structures with TiO₂-graphene nanosheets for improving photo-electric conversion

Small, v. 8, (11), p. 1762-1770
Yang, Nailiang; Zhang, Yu; Halpert, Jonathan E.; Zhai, Jin; Wang, Dan; Jiang, Lei
Article

Hierarchical hydroxyapatite microspheres composed of nanorods and their competitive sorption behavior for heavy metal ions

European Journal of Inorganic Chemistry, (16), p. 2665-2668
Zhu, Ronghai; Lai, Xiaoyong; Halpert, Jonathan E.; Yu, Ranbo; Wang, Dan
Article

Recent advances in micro-/nano-structured hollow spheres for energy applications: From simple to complex systems

Energy and Environmental Science, v. 5, (2), p. 5604-5618
Lai, Xiaoyong; Halpert, Jonathan E.; Wang, Dan
Article

Water-soluble monodispersed lanthanide oxide submicrospheres: PVP-assisted hydrothermal synthesis, size-control and luminescence properties

ChemPhysChem, v. 13, (10), p. 2610-2614
Cui, Ying; Lai, Xiaoyong; Li, Li; Hu, Zhudong; Wang, Shuo; Halpert, Jonathan E.; Yu, Ranbo; Wang, Dan
Article

2011 2

Formation of efficient dye-sensitized solar cells by introducing an interfacial layer of hierarchically ordered macro-mesoporous TiO₂ film

Science China Chemistry, v. 54, (6), p. 930-935
Du, Jiang; Lai, Xiaoyong; Halpert, Jonathan E.; Yang, Yu; Wang, Dan
Article

Morphology of contact printed colloidal quantum dots in organic semiconductor films: Implications for QD-LEDs

Physica Status Solidi (C) Current Topics in Solid State Physics, v. 8, (1), p. 120-123
Aidala, Katherine E.; Panzer, Matthew J.; Anikeeva, Polina O.; Halpert, Jonathan E.; Bawendi, Moungi G.; Bulović, Vladimir
Article

2010 3

Air-stable operation of transparent, colloidal quantum dot based LEDs with a unipolar device architecture

Nano Letters, v. 10, (1), p. 24-29
Wood, Vanessa; Panzer, Matthew J.; Caruge, Jean Michel; Halpert, Jonathan E.; Bawendi, Moungi G.; Bulović, Vladimir
Article

Charge transport in mixed CdSe and CdTe colloidal nanocrystal films

Physical Review B - Condensed Matter and Materials Physics, v. 82, (15), article number 155201
Geyer, Scott; Porter, Venda J.; Halpert, Jonathan E.; Mentzel, Tamar S.; Kastner, Marc A.; Bawendi, Moungi G.
Article

Nanoscale morphology revealed at the interface between colloidal quantum dots and organic semiconductor films

Nano Letters, v. 10, (7), p. 2421-2426
Panzer, Matthew J.; Aidala, Katherine E.; Anikeeva, Polina O.; Halpert, Jonathan E.; Bawendi, Moungi G.; Bulović, Vladimir
Article

2009 5

Alternating current driven electroluminescence from ZnSe/ZnS:Mn/ZnS nanocrystals

Nano Letters, v. 9, (6), p. 2367-2371
Wood, Vanessa; Halpert, Jonathan E.; Panzer, Matthew J.; Bawendi, Moungi G.; Bulović, Vladimir
Article

Electrostatic formation of quantum dot/J-aggregate FRET pairs in solution

Journal of Physical Chemistry C, v. 113, (23), p. 9986-9992
Halpert, Jonathan E.; Tischler, Jonathan R.; Nair, Gautham; Walker, Brian J.; Liu, Wenhao; Bulović, Vladimir; Bawendi, Moungi G.
Article

Inkjet-printed quantum dot-polymer composites for full-color AC-driven displays

Advanced Materials, v. 21, (21), p. 2151-2155
Wood, Vanessa; Panzer, Matthew J.; Chen, Jianglong; Bradley, Michael S.; Halpert, Jonathan E.; Bawendi, Moungi G.; Bulović, Vladimir
Article

Quantum dot light-emitting devices with electroluminescence tunable over the entire visible spectrum

Nano Letters, v. 9, (7), p. 2532-2536
Anikeeva, Polina O.; Halpert, Jonathan E.; Bawendi, Moungi G.; Bulović, Vladimir
Article

Selection of metal oxide charge transport layers for colloidal quantum dot LEDs

ACS Nano, v. 3, (11), p. 3581-3586
Wood, V.; Panzer, M. J.; Halpert, J. E.; Caruge, J. M.; Bawendi, M. G.; Bulović, V.
Article

2008 3

Colloidal quantum-dot light-emitting diodes with metal-oxide charge transport layers

Nature Photonics, v. 2, (4), p. 247-250
Caruge, J. M.; Halpert, J. E.; Wood, V.; Buloví, V.; Bawendi, M. G.
Article

Electronic and excitonic processes in light-emitting devices based on organic materials and colloidal quantum dots

Physical Review B - Condensed Matter and Materials Physics, v. 78, (8), article number 085434
Anikeeva, P. O.; Madigan, C. F.; Halpert, J. E.; Bawendi, M. G.; Bulović, V.
Article

Photoconduction in annealed and chemically treated CdSe/ZnS inorganic nanocrystal films

Journal of Physical Chemistry C, v. 112, (7), p. 2308-2316
Porter, Venda J.; Geyer, Scott; Halpert, Jonathan E.; Kastner, Marc A.; Bawendi, Moungi G.
Article

2007 2

Electroluminescence from a mixed red-green-blue colloidal quantum dot monolayer

Nano Letters, v. 7, (8), p. 2196-2200
Anikeeva, Polina O.; Halpert, Jonathan E.; Bawendi, Moungi G.; Bulović, Vladimir
Article

Efficient all-inorganic colloidal quantum Dot LEDs

Conference on Lasers and Electro-Optics, 2007, CLEO 2007, 2007, article number 4452605
Wood, V.; Caruge, J. M.; Halpert, J. E.; Bawendi, M. G.; Bulović, V.
Conference paper

2006 4

Color-saturated green-emitting QD-LEDs

Angewandte Chemie - International Edition, v. 45, (35), p. 5796-5799
Steckel, Jonathan S.; Snee, Preston; Coe-Sullivan, Seth; Zimmer, John P.; Halpert, Jonathan E.; Anikeeva, Polina; Kim, Lee Ann; Bulovic, Vladimir; Bawendi, Moungi G.
Article

Efficient exciton separation in mixed films of CdSe and CdTe nanoparticles

ACS National Meeting Book of Abstracts, v. 231
Porter, Venda J.; Halpert, Jonathan E.; Nair, Gautham P.; Mentzel, Tamar; Kastner, Marc A.; Bawendi, Moungi G.
Article

NiO as an inorganic hole-transporting layer in quantum-dot light-emitting devices

Nano Letters, v. 6, (12), p. 2991-2994
Caruge, Jean Michel; Halpert, Jonathan E.; Bulović, Vladimir; Bawendi, Moungi G.
Article

Synthesis of CdSe/CdTe nanobarbells

Journal of the American Chemical Society, v. 128, (39), p. 12590-12591
Halpert, Jonathan E.; Porter, Venda J.; Zimmer, John P.; Bawendi, Moungi G.
Article

2005 1

Multiexciton fluorescence from semiconductor nanocrystals

Chemical Physics, v. 318, (1-2), p. 71-81
Fisher, Brent; Caruge, Jean Michel; Chan, Yin Thai; Halpert, Jonathan; Bawendi, Moungi G.
Article

Article 8

Dipole Moment Modulation of Terminal Groups Enables Asymmetric Acceptors Featuring Medium Bandgap for Efficient and Stable Ternary Organic Solar Cells

Angewandte Chemie - International Edition, v. 64, (3), article number e202415332
Zou, Bosen; Liang, Anhai; Ding, Pengbo; Yao, Jia; Zeng, Xianghao; Li, Hongxiang; Ma, Ruijie; Li, Chunliang; Wu, Weiwei; Chen, Dezhang; Qammar, Memoona; Yu, Han; Yi, Jicheng; Guo, Liang; Pun, Sai Ho; Halpert, Jonathan E.; Li, Gang; Kan, Zhipeng; Yan, He

Indoor Organic Photovoltaics with Over 29% Efficiency and Great Stability Enabled by Giant Dimeric Acceptors with Hypsochromic Absorption and High Glass Transition Temperature

Advanced Science, v. 12, (44), article number e12690
Zou, Bosen; Ng, Ho Ming; Li, Zhengkai; Wang, Yan; Wang, Qingyuan; Chen, Dezhang; Yao, Zefan; Li, Hongxiang; Li, Chunliang; Zeng, Xianghao; Liu, Wei; Halpert, Jonathan E.; Hu, Huawei; Duan, Chunhui; Zhu, Zonglong; Wu, Tom; Wong, Wai Yeung; Zhang, Zhi Guo; Yan, He; Yu, Han

Measuring the Effects of Slow Electron Transport in Cesium Copper Iodide Light-Emitting Diodes by Pulsed Voltage Operation

ACS Applied Electronic Materials, v. v.7, p. 7545-7552
KO, Pui Kei; TSANG, Hoi Lam Tammy; DING, Pengbo; HALPERT, Jonathan Eugene

Photo-rechargeable Li-Ion Batteries with Lead-Free Double-Perovskite Halide Cs2NaBiI6

ACS Applied Materials Interfaces
Tewari, Neha; Lam, Davy; Ko, Pui Kei; Geng, Pai; Sung, Herman H. Y.; Li, C.-H. Angus; Williams, Ian Duncan; Halpert, Jonathan E.

Shallow defects and optical properties of CsPbBr₃ thin films through noble gas ion beam defect engineering

Nanotechnology, v. 36, (6), article number 065202
Fiedler, Holger; Hardy, Jake; Halpert, Jonathan E.; Davis, Nathaniel J.L.K.; Kennedy, John

Solvent-Induced Bright Emission in Lead-Free Organic–Inorganic Antimony Bromides with Reversible Transformation

Small Methods, v. 9, (2), article number 2400003
Li, Yanyan; Zhou, Zhicong; Xing, Zengshan; Ko, Pui Kei; Wong, Kam Sing; Sung, Herman H.Y.; Williams, Ian D.; Halpert, Jonathan E.

Substituent-Tuned Dipole and Coordination Geometry in Methoxybenzohydrazides for Stable and Efficient Inverted Perovskite Solar Cells

Nano Letters, v. 25, (41), p. 15072-15080
Wu, Weiwei; Qammar, Memoona; Mi, Guojun; Tamtaji, Mohsen; Cui, Zewei; Li, Dongyang; Li, Jie; Zou, Bosen; Liu, Wei; Chen, Guanhua; Pun, Sai Ho; Halpert, Jonathan E.; Yan, He; Cheng, Chun

The Deepest Blue: Major Advances and Challenges in Deep Blue Emitting Quasi-2D and Nanocrystalline Perovskite LEDs

Advanced Materials, v. 37, (23), article number 2407764
Ko, Pui Kei; Ge, Jianchao; Ding, Pengbo; Chen, Dezhang; Tsang, Hoi Lam Tammy; Kumar, Nitish; Halpert, Jonathan E.

Article 10

Advancement in QDs for optoelectronic applications and beyond

Nano Research, v. 17, (12), p. 10426-10445
Qammar, Memoona; Tan, Max J.H.; Ding, Pengbo; Ge, Jianchao; Chan, Yinthai; Halpert, Jonathan E.

Color Tuning in Cesium Lead Halide Nanocrystals via A-Site Substitution as an Alternative Method for Achieving Spectrally Stable Blue Perovskite Nanocrystal Light-Emitting Diodes

Chemistry of Materials, v. 36, (8), p. 3735-3744
Ko, Pui Kei; Chen, Dezhang; Li, C. H.Angus; Chan, Christopher Chang Sing; Sergeev, Aleksandr; Ding, Pengbo; Lam, Davy; Ouyang, Boyu; Guo, Liang; Wong, Kam Sing; Halpert, Jonathan E.

Dual-Band Emission from Intrinsic and Extrinsic Self-Trapped Excitons in a Zero-Dimensional Copper Halide Cs₃Cu₂Br₅

Journal of Physical Chemistry Letters, v. 15, (40), p. 10146-10152
Xing, Zengshan; Qammar, Memoona; Sergeev, Aleksandr A.; Zhou, Zhicong; Geng, Pai; Chan, Christopher C.S.; Halpert, Jonathan E.; Wong, Kam Sing

Formadinium Cation Doping Stabilized Ultra-deep-blue Lead Halide Perovskite Nanocrystal Light-emitting Diodes

Chemical Research in Chinese Universities, v. 40, (3), p. 556-560
Ko, Pui Kei; Halpert, Jonathan E.

In Situ Surface Metal Passivation on AgBiS₂ Nanocrystals for Trap-Reduced Inverted Solar Cells

ACS Applied Energy Materials, v. 7, (19), p. 8271-8277
Zou, Bosen; Chen, Dezhang; Qammar, Memoona; Ding, Pengbo; Ko, Pui Kei; Wu, Weiwei; Shivarudraiah, Sunil B.; Yan, He; Halpert, Jonathan E.

Intense Circular Dichroism and Spin Selectivity in AgBiS₂ Nanocrystals by Chiral Ligand Exchange

Advanced Materials, v. 36, (52), article number 2410087
Ding, Pengbo; Chen, Dezhang; Tamtaji, Mohsen; Hu, Sile; Qammar, Memoona; Ko, Pui Kei; Sergeev, Aleksandr A.; Zou, Bosen; Tang, Bing; Wong, Kam Sing; Guo, Liang; Chen, Guanhua; Rogach, Andrey L.; Halpert, Jonathan E.

Nanomaterials for spin-based quantum information

Nanoscale, v. 17, (3), p. 1148-1170
Ding, Pengbo; Chen, Dezhang; Ko, Pui Kei; Qammar, Memoona; Geng, Pai; Guo, Liang; Halpert, Jonathan E.

Precisely Controlling Polymer Acceptors with Weak Intramolecular Charge Transfer Effect and Superior Coplanarity for Efficient Indoor All-Polymer Solar Cells with over 27% Efficiency

Advanced Materials, v. 36, (32), article number 2405404
Zou, Bosen; Ng, Ho Ming; Yu, Han; Ding, Pengbo; Yao, Jia; Chen, Dezhang; Pun, Sai Ho; Hu, Huawei; Ding, Kan; Ma, Ruijie; Qammar, Memoona; Liu, Wei; Wu, Weiwei; Lai, Joshua Yuk Lin; Zhao, Chaoyue; Pan, Mingao; Guo, Liang; Halpert, Jonathan E.; Ade, Harald; Li, Gang; Yan, He

Sterically Controlled Synthesis of Amine-Free CsPbBr₃ Nanoplatelets for Stable, Pure-Blue Light Emission

Angewandte Chemie - International Edition, v. 63, (8), article number e202317590
Chen, Dezhang; Wang, Tyler; Kei Ko, Pui; Shi, Jinquan; Liu, Mengxia; Halpert, Jonathan E.

Strongly Confined and Spectrally Tunable CsPbBr₃ Quantum Dots for Deep Blue QD-LEDs

Advanced Optical Materials, v. 12, (11), article number 2302477
Ding, Pengbo; Ko, Pui Kei; Geng, Pai; Chen, Dezhang; Xing, Zengshan; Tsang, Hoi Lam Tammy; Wong, Kam Sing; Guo, Liang; Halpert, Jonathan E.

Article 7

Amino Acid-Passivated Pure Red CsPbI₃ Quantum Dot LEDs

ACS Energy Letters, v. 8, (1), p. 410-416
Chen, Dezhang; Ko, Pui Kei; Li, C. H.Angus; Zou, Bosen; Geng, Pai; Guo, Liang; Halpert, Jonathan E.

Carrier Dynamics of Efficient Triplet Harvesting in AgBiS₂/Pentacene Singlet Fission Solar Cells

Advanced Science, v. 10, (13), article number 2300177
Geng, Pai; Chen, Dezhang; Shivarudraiah, Sunil B.; Chen, Xihan; Guo, Liang; Halpert, Jonathan E.

In Situ MAPbI₃ Perovskite Nanostructures Formed by a Poly[(phenylglycidyl ether)-co-formaldehyde] Epoxide for Enhanced Stability and Photoluminescence

ACS Applied Nano Materials, v. 6, (13), p. 12240-12247
Shivarudraiah, Sunil B.; Chan, Christopher C.S.; Chen, Dezhang; Zhou, Zhicong; Ng, Michael; Tewari, Neha; Tao, Chun Ki; Wong, Kam Sing; Halpert, Jonathan E.

Mixed Ruddlesden–Popper and Dion–Jacobson Phase Perovskites for Stable and Efficient Blue Perovskite LEDs

Advanced Functional Materials, v. 33, (41), article number 2303301
Li, C. H.Angus; Ko, Pui Kei; Chan, Christopher C.S.; Sergeev, Aleksandr; Chen, Dezhang; Tewari, Neha; Wong, Kam Sing; Halpert, Jonathan E.

Organic-inorganic halide perovskites for memristors

Journal of Semiconductors, v. 44, (9), article number 091604
Qammar, Memoona; Zou, Bosen; Halpert, Jonathan E.

Organic-Inorganic Hybrid Alkali Copper Iodides for Bright Emission across the Visible Spectrum

Chemistry of Materials, v. 35, (3), p. 1318-1324
Li, Yanyan; Zhou, Zhicong; Sheong, Fu Kit; Xing, Zengshan; Wong, Kam Sing; Sung, Herman H.Y.; Williams, Ian D.; Halpert, Jonathan E.

Splashing-Assisted Femtosecond Laser-Activated Metal Deposition for Mold- and Mask-Free Fabrication of Robust Microstructured Electrodes for Flexible Pressure Sensors

Small, v. 19, (24), article number 2207362
Ji, Yaqiang; Zhang, Yuan; Zhu, Jiaqi; Geng, Pai; Halpert, Jonathan E.; Guo, Liang

Conference paper 1

Amino Acid-Passivated Pure Red CsPbI3 Quantum Dot LEDs

Chen, Dezhang; Halpert, Jonathan Eugene

Article 9

Barrierless Exciton Self-Trapping and Emission Mechanism in Low-Dimensional Copper Halides

Advanced Functional Materials, v. 32, (46), article number 2207638
Xing, Zengshan; Zhou, Zhicong; Zhong, Guohua; Chan, Christopher C.S.; Li, Yanyan; Zou, Xinhui; Halpert, Jonathan E.; Su, Haibin; Wong, Kam Sing

Highly Stable Tetrahydrothiophene 1-Oxide Caged Copper Bromide and Chloride Clusters with Deep-Red to Near-IR Emission

Inorganic Chemistry, v. 61, (28), p. 10950-10956
Li, Yanyan; Zhou, Zhicong; Xing, Zengshan; Wong, Kam Sing; Sung, Herman H.Y.; Williams, Ian D.; Halpert, Jonathan E.

How do molecular interactions affect fluorescence behavior of AIEgens in solution and aggregate states?

Science China Chemistry, v. 65, (1), p. 135-144
Yu, Ying; Xing, Hao; Zhou, Zhicong; Liu, Junkai; Sung, Herman H.Y.; Williams, Ian D.; Halpert, Jonathan E.; Zhao, Zheng; Tang, Ben Zhong

Inkjet printed patterned bank structure with encapsulated perovskite colour filters for modern display

Nanoscale, v. 14, (22), p. 8060-8068
Kang, Chengbin; Zhou, Zhicong; Halpert, Jonathan E.; Srivastava, Abhishek K.

Polarization anisotropy losses due to morphological instability in CsPbX₃ nanorods and strategies for mitigation

Journal of Materials Chemistry C, v. 10, (23), p. 8947-8954
Ng, Michael; Shivarudraiah, Sunil B.; Halpert, Jonathan E.

Recent advancements in batteries and photo-batteries using metal halide perovskites

APL Materials, v. 10, (4), article number 040905
Tewari, Neha; Lam, Davy; Li, Cham Heng Angus; Halpert, Jonathan E.

Solution-Processed Red, Green, and Blue Quantum Rod Light-Emitting Diodes

ACS Applied Materials and Interfaces, v. 14, (16), p. 18723-18735
Mallem, Kumar; Prodanov, Maksym F.; Dezhang, Chen; Marus, Mikita; Kang, Chengbin; Shivarudraiah, Sunil B.; Vashchenko, Valeri V.; Halpert, Jonathan E.; Srivastava, Abhishek K.

Solution-Processed, Inverted AgBiS₂Nanocrystal Solar Cells

ACS Applied Materials and Interfaces, v. 14, (1), p. 1634-1642
Chen, Dezhang; Shivarudraiah, Sunil B.; Geng, Pai; Ng, Michael; Li, C. H.Angus; Tewari, Neha; Zou, Xinhui; Wong, Kam Sing; Guo, Liang; Halpert, Jonathan E.

Synthesis of Cesium Copper Bromide Nanorods with Strong Linearly Polarized Emission

Advanced Optical Materials, v. 10, (21), article number 2201031
Ng, Michael; Geng, Pai; Shivarudraiah, Sunil B.; Guo, Liang; Halpert, Jonathan E.

Article 11

“Simple” Aggregation-Induced Emission Luminogens for Nondoped Solution-Processed Organic Light-Emitting Diodes with Emission Close to Pure Red in the Standard Red, Green, and Blue Gamut

Advanced Photonics Research, v. v. 2, article number 2100004
ZHANG, Tianfu; ZHOU, Zhicong; ZHENG, Zheng; HALPERT, Jonathan Eugene; TANG, Benzhong; LAM, Wing Yip; ZHANG, Jianyu; YU, Ying

Discovery of a New Intermediate Enables One-Step Deposition of High-Quality Perovskite Films via Solvent Engineering

Solar RRL, v. 5, (4), article number 2000712
Hu, Chen; Shivarudraiah, Sunil B.; Sung, Herman H.Y.; Williams, Ian D.; Halpert, Jonathan E.; Yang, Shihe

Emergent electronic properties in Co-deposited superatomic clusters

The Journal of Chemical Physics, v. 155, (12), article number 124309
Fiedler, Holger; Schacht, Julia; Hammerschmidt, Lukas; Golovko, Vladimir; Gaston, Nicola; Halpert, Jonathan E.

Improved brightness and efficiency of green quantum-rod-based light-emitting diodes

Digest of Technical Papers - SID International Symposium, v. 52, (1), p. 959-962
Mallem, Kumar; Prodanov, Maksym F.; Chen, Dezhang; Marus, Mikita; Vashchenko; Halpert, Jonathan E.; Srivastava, Abhishek K.

Optically Clear Films of Formamidinium Lead Bromide Perovskite for Wide-Band-Gap, Solution-Processed, Semitransparent Solar Cells

ACS Applied Materials and Interfaces, v. 13, (31), p. 37223-37230
Shivarudraiah, Sunil B.; Tewari, Neha; Ng, Michael; Li, C. H.Angus; Chen, Dezhang; Halpert, Jonathan E.

Photorechargeable Lead-Free Perovskite Lithium-Ion Batteries Using Hexagonal Cs₃Bi₂I₉Nanosheets

Nano Letters, v. 21, (13), p. 5578-5585
Tewari, Neha; Shivarudraiah, Sunil B.; Halpert, Jonathan E.

Potassium and Rubidium Copper Halide A₂CuX₃(A = K, Rb, X = Cl, Br) Micro- And Nanocrystals with near Unity Quantum Yields for White Light Applications

ACS Applied Nano Materials, v. 4, (12), p. 14188-14196
Zhou, Zhicong; Li, Yanyan; Xing, Zengshan; Li, Zhi; Wong, Kam Sing; Halpert, Jonathan E.

Progress in copper metal halides for optoelectronic applications

Materials Chemistry Frontiers, v. 5, (13), p. 4796-4820
Li, Yanyan; Zhou, Zhicong; Tewari, Neha; Ng, Michael; Geng, Pai; Chen, Dezhang; Ko, Pui Kei; Qammar, Memoona; Guo, Liang; Halpert, Jonathan E.

Rapid Synthesis of Bright, Shape-Controlled, Large Single Crystals of Cs₃Cu₂X₅ for Phase Pure Single (X = Br, Cl) and Mixed Halides (X = Br/Cl) as the Blue and Green Components for Printable White Light-Emitting Devices

Advanced Materials Interfaces, v. 8, (20), article number 2101471
Zhou, Zhicong; Li, Yanyan; Xing, Zengshan; Sung, Herman H.Y.; Williams, Ian D.; Li, Zhi; Wong, Kam Sing; Halpert, Jonathan E.

The Multiple Roles of Metal Ion Dopants in Spectrally Stable, Efficient Quasi-2D Perovskite Sky-Blue Light-Emitting Devices

Advanced Optical Materials, v. 9, (21), article number 2100860
Li, Cham Heng Angus; Geng, Pai; Shivarudraiah, Sunil Benachigere; Ng, Michael; Zhang, Xian Fu; Xu, Baomin; Guo, Liang; Halpert, Jonathan E.

Tuning the Self-Trapped Emission: Reversible Transformation to 0D Copper Clusters Permits Bright Red Emission in Potassium and Rubidium Copper Bromides

ACS Energy Letters, v. 6, (12), p. 4383-4389
Li, Yanyan; Zhou, Zhicong; Sheong, Fu Kit; Xing, Zengshan; Lortz, Rolf; Wong, Kam Sing; Sung, Herman H.Y.; Williams, Ian D.; Halpert, Jonathan E.

Article 6

All-Inorganic, Solution-Processed, Inverted CsPbI₃Quantum Dot Solar Cells with a PCE of 13.1% Achieved via a Layer-by-Layer FAI Treatment

ACS Applied Energy Materials, v. 3, (6), p. 5620-5627
Shivarudraiah, Sunil B.; Ng, Michael; Li, C. H.Angus; Halpert, Jonathan E.

Large Photogain in Multicolor Nanocrystal Photodetector Arrays Enabling Room-Temperature Detection of Targets above 100 °c

ACS Photonics, v. 7, (11), p. 3078-3085
Cryer, Matthew E.; Browning, Leo A.; Plank, Natalie O.V.; Halpert, Jonathan E.

Quantum-Dot Tandem Solar Cells Based on a Solution-Processed Nanoparticle Intermediate Layer

ACS Applied Materials and Interfaces, v. 12, (2), p. 2313-2318
Hu, Long; Wang, Yutao; Shivarudraiah, Sunil B.; Yuan, Jianyu; Guan, Xinwei; Geng, Xun; Younis, Adnan; Hu, Yicong; Huang, Shujuan; Wu, Tom; Halpert, Jonathan E.

Recent advancements in near-infrared perovskite light-emitting diodes

ACS Applied Electronic Materials, v. 2, (11), p. 3470-3490
Vashishtha, Parth; Bishnoi, Swati; Angus Li, C. H.; Jagadeeswararao, Metikoti; Hooper, Thomas J.N.; Lohia, Naina; Shivarudraiah, Sunil B.; Ansari, Mohammed S.; Sharma, Shailesh N.; Halpert, Jonathan E.

Room Temperature Synthesis of Stable, Printable Cs₃Cu₂X₅(X = I, Br/I, Br, Br/Cl, Cl) Colloidal Nanocrystals with Near-Unity Quantum Yield Green Emitters (X = Cl)

Chemistry of Materials, v. 32, (13), p. 5515-5524
Li, Yanyan; Vashishtha, Parth; Zhou, Zhicong; Li, Zhi; Shivarudraiah, Sunil B.; Ma, Chao; Liu, Junkai; Wong, Kam Sing; Su, Haibin; Halpert, Jonathan E.

Single crystals of mixed br/cl and sn-doped formamidinium lead halide perovskites: Via inverse temperature crystallization

RSC Advances, v. 10, (7), p. 3832-3836
Ng, Michael; Halpert, Jonathan E.

Article 5

Enhanced mobility in PbS quantum dot films: Via PbSe quantum dot mixing for optoelectronic applications

Journal of Materials Chemistry C, v. 7, (15), p. 4497-4502
Hu, Long; Huang, Shujuan; Patterson, Robert; Halpert, Jonathan E.

High Efficiency Blue and Green Light-Emitting Diodes Using Ruddlesden-Popper Inorganic Mixed Halide Perovskites with Butylammonium Interlayers

Chemistry of Materials, v. 31, (1), p. 83-89
Vashishtha, Parth; Ng, Michael; Shivarudraiah, Sunil B.; Halpert, Jonathan E.

Luminescent Down-Conversion Semiconductor Quantum Dots and Aligned Quantum Rods for Liquid Crystal Displays

Advanced Science, v. 6, (22), article number 1901345
Srivastava, Abhishek K.; Zhang, Wanlong; Schneider, Julian; Halpert, Jonathan E.; Rogach, Andrey L.

The Future Is Blue (LEDs): Why Chemistry Is the Key to Perovskite Displays §

Chemistry of Materials, v. 31, (16), p. 6003-6032
Li, C. H.Angus; Zhou, Zhicong; Vashishtha, Parth; Halpert, Jonathan E.

Ultrafast Spectrally Resolved Photoinduced Complex Refractive Index Changes in CsPbBr ₃ Perovskites

ACS Photonics, v. 6, (2), p. 345-350
Tamming, Ronnie R.; Butkus, Justinas; Price, Michael B.; Vashishtha, Parth; Prasad, Shyamal K.K.; Halpert, Jonathan E.; Chen, Kai; Hodgkiss, Justin M.

Conference paper 1

Synthesis of CsPbBr3 Nanorods with Tuneable Optical Anisotropy for Optoelectronic Applications

Digest of Technical Papers - SID International Symposium / edited by Wang Baoping; Che Chi-Ming; Tang Ching W.; Shieh Han-Ping D.; Kwok Hoi S.; Xu Hongxing; Liu Ming; Dai Qionghai; Peng Shou; Yam Vivian Wing-Wah; Huang Wei; Wang Xiaomo; Cao Yong; Zheng Youliao; Hao Yue; Liu Yunqi; Ouyang Zhongcan; Wang Zhonglin; Xu Zuyan. John Wiley and Sons Inc, 2019, p. 949-952
Ng, Michael; Dudka, Tetiana; Zhang, Wanlong; Rogach, Andrey L.; Srivastava, Abhishek K.; Halpert, Jonathan E.

Article 5

300 nm Spectral Resolution in the Mid-Infrared with Robust, High Responsivity Flexible Colloidal Quantum Dot Devices at Room Temperature

ACS Photonics, v. 5, (8), p. 3009-3015
Cryer, Matthew E.; Halpert, Jonathan E.

PbSe Quantum Dot Passivated Via Mixed Halide Perovskite Nanocrystals for Solar Cells With Over 9% Efficiency

Solar RRL, v. 2, (12), article number 1800234
Hu, Long; Zhang, Zhilong; Patterson, Robert J.; Shivarudraiah, Sunil B.; Zhou, Zhicong; Ng, Michael; Huang, Shujuang; Halpert, Jonathan E.

Photo-Electrosensitive Memristor Using Oxygen Doping in HgTe Nanocrystal Films

ACS Applied Materials and Interfaces, v. 10, (22), p. 18927-18934
Cryer, Matthew E.; Fiedler, Holger; Halpert, Jonathan E.

Room Temperature Mid-IR Detection through Localized Surface Vibrational States of SnTe Nanocrystals

ACS sensors, v. 3, (10), p. 2087-2094
Cryer, Matthew E.; Halpert, Jonathan E.

Shape-, Size-, and Composition-Controlled Thallium Lead Halide Perovskite Nanowires and Nanocrystals with Tunable Band Gaps

Chemistry of Materials, v. 30, (9), p. 2973-2982
Vashishtha, Parth; Metin, Dani Z.; Cryer, Matthew E.; Chen, Kai; Hodgkiss, Justin M.; Gaston, Nicola; Halpert, Jonathan E.

Article 5

A Hybrid Perovskite Solar Cell Modified With Copper Indium Sulfide Nanocrystals to Enhance Hole Transport and Moisture Stability

Solar RRL, v. 1, (8), article number 1700078
Ma, Yingzhuang; Vashishtha, Parth; Shivarudraiah, Sunil B.; Chen, Kai; Liu, Ye; Hodgkiss, Justin M.; Halpert, Jonathan E.

Controlled Growth of CH₃NH₃PbI₃ Using a Dynamically Dispensed Spin-Coating Method: Improving Efficiency with a Reproducible PbI₂ Blocking Layer

ChemSusChem, v. 10, (12), p. 2677-2684
Ma, Yingzhuang; Vashishtha, Parth; Chen, Kai; Peach, Elijah L.; Ohayon, David; Hodgkiss, Justin M.; Halpert, Jonathan E.

Dual-Functional Optoelectronic and Magnetic Pyrite/Iron Selenide Core/Shell Nanocrystals

Journal of Physical Chemistry C, v. 121, (14), p. 8220-8226
McGrath, Andrew J.; Yu, Chenlong; Fiedler, Holger; Butkus, Justinas; Hodgkiss, Justin M.; Halpert, Jonathan E.

Field-Driven Ion Migration and Color Instability in Red-Emitting Mixed Halide Perovskite Nanocrystal Light-Emitting Diodes

Chemistry of Materials, v. 29, (14), p. 5965-5973
Vashishtha, Parth; Halpert, Jonathan E.

The Evolution of Quantum Confinement in CsPbBr₃ Perovskite Nanocrystals

Chemistry of Materials, v. 29, (8), p. 3644-3652
Butkus, Justinas; Vashishtha, Parth; Chen, Kai; Gallaher, Joseph K.; Prasad, Shyamal K.K.; Metin, Dani Z.; Laufersky, Geoffry; Gaston, Nicola; Halpert, Jonathan E.; Hodgkiss, Justin M.

Article 1

Identification of dipole disorder in low temperature solution processed oxides: Its utility and suppression for transparent high performance solution-processed hybrid electronics

Chemical Science, v. 7, (10), p. 6337-6346
Banger, Kulbinder; Warwick, Christopher; Lang, Jiang; Broch, Katharina; Halpert, Jonathan E.; Socratous, Josephine; Brown, Adam; Leedham, Timothy; Sirringhaus, Henning

Article 4

Charge Dynamics in Solution-Processed Nanocrystalline CuInS₂ Solar Cells

ACS Nano, v. 9, (6), p. 5857-5867
Halpert, Jonathan E.; Morgenstern, Frederik S.F.; Ehrler, Bruno; Vaynzof, Yana; Credgington, Dan; Greenham, Neil C.

Effect of carrier thermalization dynamics on light emission and amplification in organometal halide perovskites

Journal of Physical Chemistry Letters, v. 6, (1), p. 153-158
Chen, Kai; Barker, Alex J.; Morgan, Francis L.C.; Halpert, Jonathan E.; Hodgkiss, Justin M.

Hot-carrier cooling and photoinduced refractive index changes in organic-inorganic lead halide perovskites

Nature Communications, v. 6, article number 8420
Price, Michael B.; Butkus, Justinas; Jellicoe, Tom C.; Sadhanala, Aditya; Briane, Anouk; Halpert, Jonathan E.; Broch, Katharina; Hodgkiss, Justin M.; Friend, Richard H.; Deschler, Felix

Solution synthesis and optical properties of transition-metal-doped silicon nanocrystals

Journal of Physical Chemistry Letters, v. 6, (9), p. 1573-1576
McVey, Benjamin F.P.; Butkus, Justinas; Halpert, Jonathan E.; Hodgkiss, Justin M.; Tilley, Richard D.

Article 6

A novel and highly efficient photocatalyst based on P ₂₅- graphdiyne nanocomposite

Small, v. 8, (2), p. 265-271
Wang, Shuo; Yi, Luoxin; Halpert, Jonathan E.; Lai, Xiaoyong; Liu, Yuanyuan; Cao, Hongbin; Yu, Ranbo; Wang, Dan; Li, Yuliang

Accurate control of multishelled ZnO hollow microspheres for dye-sensitized solar cells with high efficiency

Advanced Materials, v. 24, (8), p. 1046-1049
Dong, Zhenghong; Lai, Xiaoyong; Halpert, Jonathan E.; Yang, Nailiang; Yi, Luoxin; Zhai, Jin; Wang, Dan; Tang, Zhiyong; Jiang, Lei

Granum-like stacking structures with TiO₂-graphene nanosheets for improving photo-electric conversion

Small, v. 8, (11), p. 1762-1770
Yang, Nailiang; Zhang, Yu; Halpert, Jonathan E.; Zhai, Jin; Wang, Dan; Jiang, Lei

Hierarchical hydroxyapatite microspheres composed of nanorods and their competitive sorption behavior for heavy metal ions

European Journal of Inorganic Chemistry, (16), p. 2665-2668
Zhu, Ronghai; Lai, Xiaoyong; Halpert, Jonathan E.; Yu, Ranbo; Wang, Dan

Recent advances in micro-/nano-structured hollow spheres for energy applications: From simple to complex systems

Energy and Environmental Science, v. 5, (2), p. 5604-5618
Lai, Xiaoyong; Halpert, Jonathan E.; Wang, Dan

Water-soluble monodispersed lanthanide oxide submicrospheres: PVP-assisted hydrothermal synthesis, size-control and luminescence properties

ChemPhysChem, v. 13, (10), p. 2610-2614
Cui, Ying; Lai, Xiaoyong; Li, Li; Hu, Zhudong; Wang, Shuo; Halpert, Jonathan E.; Yu, Ranbo; Wang, Dan

Article 2

Formation of efficient dye-sensitized solar cells by introducing an interfacial layer of hierarchically ordered macro-mesoporous TiO₂ film

Science China Chemistry, v. 54, (6), p. 930-935
Du, Jiang; Lai, Xiaoyong; Halpert, Jonathan E.; Yang, Yu; Wang, Dan

Morphology of contact printed colloidal quantum dots in organic semiconductor films: Implications for QD-LEDs

Physica Status Solidi (C) Current Topics in Solid State Physics, v. 8, (1), p. 120-123
Aidala, Katherine E.; Panzer, Matthew J.; Anikeeva, Polina O.; Halpert, Jonathan E.; Bawendi, Moungi G.; Bulović, Vladimir

Article 3

Air-stable operation of transparent, colloidal quantum dot based LEDs with a unipolar device architecture

Nano Letters, v. 10, (1), p. 24-29
Wood, Vanessa; Panzer, Matthew J.; Caruge, Jean Michel; Halpert, Jonathan E.; Bawendi, Moungi G.; Bulović, Vladimir

Charge transport in mixed CdSe and CdTe colloidal nanocrystal films

Physical Review B - Condensed Matter and Materials Physics, v. 82, (15), article number 155201
Geyer, Scott; Porter, Venda J.; Halpert, Jonathan E.; Mentzel, Tamar S.; Kastner, Marc A.; Bawendi, Moungi G.

Nanoscale morphology revealed at the interface between colloidal quantum dots and organic semiconductor films

Nano Letters, v. 10, (7), p. 2421-2426
Panzer, Matthew J.; Aidala, Katherine E.; Anikeeva, Polina O.; Halpert, Jonathan E.; Bawendi, Moungi G.; Bulović, Vladimir

Article 5

Alternating current driven electroluminescence from ZnSe/ZnS:Mn/ZnS nanocrystals

Nano Letters, v. 9, (6), p. 2367-2371
Wood, Vanessa; Halpert, Jonathan E.; Panzer, Matthew J.; Bawendi, Moungi G.; Bulović, Vladimir

Electrostatic formation of quantum dot/J-aggregate FRET pairs in solution

Journal of Physical Chemistry C, v. 113, (23), p. 9986-9992
Halpert, Jonathan E.; Tischler, Jonathan R.; Nair, Gautham; Walker, Brian J.; Liu, Wenhao; Bulović, Vladimir; Bawendi, Moungi G.

Inkjet-printed quantum dot-polymer composites for full-color AC-driven displays

Advanced Materials, v. 21, (21), p. 2151-2155
Wood, Vanessa; Panzer, Matthew J.; Chen, Jianglong; Bradley, Michael S.; Halpert, Jonathan E.; Bawendi, Moungi G.; Bulović, Vladimir

Quantum dot light-emitting devices with electroluminescence tunable over the entire visible spectrum

Nano Letters, v. 9, (7), p. 2532-2536
Anikeeva, Polina O.; Halpert, Jonathan E.; Bawendi, Moungi G.; Bulović, Vladimir

Selection of metal oxide charge transport layers for colloidal quantum dot LEDs

ACS Nano, v. 3, (11), p. 3581-3586
Wood, V.; Panzer, M. J.; Halpert, J. E.; Caruge, J. M.; Bawendi, M. G.; Bulović, V.

Article 3

Colloidal quantum-dot light-emitting diodes with metal-oxide charge transport layers

Nature Photonics, v. 2, (4), p. 247-250
Caruge, J. M.; Halpert, J. E.; Wood, V.; Buloví, V.; Bawendi, M. G.

Electronic and excitonic processes in light-emitting devices based on organic materials and colloidal quantum dots

Physical Review B - Condensed Matter and Materials Physics, v. 78, (8), article number 085434
Anikeeva, P. O.; Madigan, C. F.; Halpert, J. E.; Bawendi, M. G.; Bulović, V.

Photoconduction in annealed and chemically treated CdSe/ZnS inorganic nanocrystal films

Journal of Physical Chemistry C, v. 112, (7), p. 2308-2316
Porter, Venda J.; Geyer, Scott; Halpert, Jonathan E.; Kastner, Marc A.; Bawendi, Moungi G.

Article 1

Electroluminescence from a mixed red-green-blue colloidal quantum dot monolayer

Nano Letters, v. 7, (8), p. 2196-2200
Anikeeva, Polina O.; Halpert, Jonathan E.; Bawendi, Moungi G.; Bulović, Vladimir

Conference paper 1

Efficient all-inorganic colloidal quantum Dot LEDs

Conference on Lasers and Electro-Optics, 2007, CLEO 2007, 2007, article number 4452605
Wood, V.; Caruge, J. M.; Halpert, J. E.; Bawendi, M. G.; Bulović, V.

Article 4

Color-saturated green-emitting QD-LEDs

Angewandte Chemie - International Edition, v. 45, (35), p. 5796-5799
Steckel, Jonathan S.; Snee, Preston; Coe-Sullivan, Seth; Zimmer, John P.; Halpert, Jonathan E.; Anikeeva, Polina; Kim, Lee Ann; Bulovic, Vladimir; Bawendi, Moungi G.

Efficient exciton separation in mixed films of CdSe and CdTe nanoparticles

ACS National Meeting Book of Abstracts, v. 231
Porter, Venda J.; Halpert, Jonathan E.; Nair, Gautham P.; Mentzel, Tamar; Kastner, Marc A.; Bawendi, Moungi G.

NiO as an inorganic hole-transporting layer in quantum-dot light-emitting devices

Nano Letters, v. 6, (12), p. 2991-2994
Caruge, Jean Michel; Halpert, Jonathan E.; Bulović, Vladimir; Bawendi, Moungi G.

Synthesis of CdSe/CdTe nanobarbells

Journal of the American Chemical Society, v. 128, (39), p. 12590-12591
Halpert, Jonathan E.; Porter, Venda J.; Zimmer, John P.; Bawendi, Moungi G.

Article 1

Multiexciton fluorescence from semiconductor nanocrystals

Chemical Physics, v. 318, (1-2), p. 71-81
Fisher, Brent; Caruge, Jean Michel; Chan, Yin Thai; Halpert, Jonathan; Bawendi, Moungi G.

2019 6

Enhanced mobility in PbS quantum dot films: Via PbSe quantum dot mixing for optoelectronic applications

Journal of Materials Chemistry C, v. 7, (15), p. 4497-4502
Hu, Long; Huang, Shujuan; Patterson, Robert; Halpert, Jonathan E.
Article

High Efficiency Blue and Green Light-Emitting Diodes Using Ruddlesden-Popper Inorganic Mixed Halide Perovskites with Butylammonium Interlayers

Chemistry of Materials, v. 31, (1), p. 83-89
Vashishtha, Parth; Ng, Michael; Shivarudraiah, Sunil B.; Halpert, Jonathan E.
Article

Luminescent Down-Conversion Semiconductor Quantum Dots and Aligned Quantum Rods for Liquid Crystal Displays

Advanced Science, v. 6, (22), article number 1901345
Srivastava, Abhishek K.; Zhang, Wanlong; Schneider, Julian; Halpert, Jonathan E.; Rogach, Andrey L.
Article

The Future Is Blue (LEDs): Why Chemistry Is the Key to Perovskite Displays §

Chemistry of Materials, v. 31, (16), p. 6003-6032
Li, C. H.Angus; Zhou, Zhicong; Vashishtha, Parth; Halpert, Jonathan E.
Article

Ultrafast Spectrally Resolved Photoinduced Complex Refractive Index Changes in CsPbBr ₃ Perovskites

ACS Photonics, v. 6, (2), p. 345-350
Tamming, Ronnie R.; Butkus, Justinas; Price, Michael B.; Vashishtha, Parth; Prasad, Shyamal K.K.; Halpert, Jonathan E.; Chen, Kai; Hodgkiss, Justin M.
Article

Synthesis of CsPbBr3 Nanorods with Tuneable Optical Anisotropy for Optoelectronic Applications

Digest of Technical Papers - SID International Symposium / edited by Wang Baoping; Che Chi-Ming; Tang Ching W.; Shieh Han-Ping D.; Kwok Hoi S.; Xu Hongxing; Liu Ming; Dai Qionghai; Peng Shou; Yam Vivian Wing-Wah; Huang Wei; Wang Xiaomo; Cao Yong; Zheng Youliao; Hao Yue; Liu Yunqi; Ouyang Zhongcan; Wang Zhonglin; Xu Zuyan. John Wiley and Sons Inc, 2019, p. 949-952
Ng, Michael; Dudka, Tetiana; Zhang, Wanlong; Rogach, Andrey L.; Srivastava, Abhishek K.; Halpert, Jonathan E.
Conference paper

2018 5

300 nm Spectral Resolution in the Mid-Infrared with Robust, High Responsivity Flexible Colloidal Quantum Dot Devices at Room Temperature

ACS Photonics, v. 5, (8), p. 3009-3015
Cryer, Matthew E.; Halpert, Jonathan E.
Article

PbSe Quantum Dot Passivated Via Mixed Halide Perovskite Nanocrystals for Solar Cells With Over 9% Efficiency

Solar RRL, v. 2, (12), article number 1800234
Hu, Long; Zhang, Zhilong; Patterson, Robert J.; Shivarudraiah, Sunil B.; Zhou, Zhicong; Ng, Michael; Huang, Shujuang; Halpert, Jonathan E.
Article

Photo-Electrosensitive Memristor Using Oxygen Doping in HgTe Nanocrystal Films

ACS Applied Materials and Interfaces, v. 10, (22), p. 18927-18934
Cryer, Matthew E.; Fiedler, Holger; Halpert, Jonathan E.
Article

Room Temperature Mid-IR Detection through Localized Surface Vibrational States of SnTe Nanocrystals

ACS sensors, v. 3, (10), p. 2087-2094
Cryer, Matthew E.; Halpert, Jonathan E.
Article

Shape-, Size-, and Composition-Controlled Thallium Lead Halide Perovskite Nanowires and Nanocrystals with Tunable Band Gaps

Chemistry of Materials, v. 30, (9), p. 2973-2982
Vashishtha, Parth; Metin, Dani Z.; Cryer, Matthew E.; Chen, Kai; Hodgkiss, Justin M.; Gaston, Nicola; Halpert, Jonathan E.
Article

2017 5

A Hybrid Perovskite Solar Cell Modified With Copper Indium Sulfide Nanocrystals to Enhance Hole Transport and Moisture Stability

Solar RRL, v. 1, (8), article number 1700078
Ma, Yingzhuang; Vashishtha, Parth; Shivarudraiah, Sunil B.; Chen, Kai; Liu, Ye; Hodgkiss, Justin M.; Halpert, Jonathan E.
Article

Controlled Growth of CH₃NH₃PbI₃ Using a Dynamically Dispensed Spin-Coating Method: Improving Efficiency with a Reproducible PbI₂ Blocking Layer

ChemSusChem, v. 10, (12), p. 2677-2684
Ma, Yingzhuang; Vashishtha, Parth; Chen, Kai; Peach, Elijah L.; Ohayon, David; Hodgkiss, Justin M.; Halpert, Jonathan E.
Article

Dual-Functional Optoelectronic and Magnetic Pyrite/Iron Selenide Core/Shell Nanocrystals

Journal of Physical Chemistry C, v. 121, (14), p. 8220-8226
McGrath, Andrew J.; Yu, Chenlong; Fiedler, Holger; Butkus, Justinas; Hodgkiss, Justin M.; Halpert, Jonathan E.
Article

Field-Driven Ion Migration and Color Instability in Red-Emitting Mixed Halide Perovskite Nanocrystal Light-Emitting Diodes

Chemistry of Materials, v. 29, (14), p. 5965-5973
Vashishtha, Parth; Halpert, Jonathan E.
Article

The Evolution of Quantum Confinement in CsPbBr₃ Perovskite Nanocrystals

Chemistry of Materials, v. 29, (8), p. 3644-3652
Butkus, Justinas; Vashishtha, Parth; Chen, Kai; Gallaher, Joseph K.; Prasad, Shyamal K.K.; Metin, Dani Z.; Laufersky, Geoffry; Gaston, Nicola; Halpert, Jonathan E.; Hodgkiss, Justin M.
Article

2016 1

Identification of dipole disorder in low temperature solution processed oxides: Its utility and suppression for transparent high performance solution-processed hybrid electronics

Chemical Science, v. 7, (10), p. 6337-6346
Banger, Kulbinder; Warwick, Christopher; Lang, Jiang; Broch, Katharina; Halpert, Jonathan E.; Socratous, Josephine; Brown, Adam; Leedham, Timothy; Sirringhaus, Henning
Article

2015 4

Charge Dynamics in Solution-Processed Nanocrystalline CuInS₂ Solar Cells

ACS Nano, v. 9, (6), p. 5857-5867
Halpert, Jonathan E.; Morgenstern, Frederik S.F.; Ehrler, Bruno; Vaynzof, Yana; Credgington, Dan; Greenham, Neil C.
Article

Effect of carrier thermalization dynamics on light emission and amplification in organometal halide perovskites

Journal of Physical Chemistry Letters, v. 6, (1), p. 153-158
Chen, Kai; Barker, Alex J.; Morgan, Francis L.C.; Halpert, Jonathan E.; Hodgkiss, Justin M.
Article

Hot-carrier cooling and photoinduced refractive index changes in organic-inorganic lead halide perovskites

Nature Communications, v. 6, article number 8420
Price, Michael B.; Butkus, Justinas; Jellicoe, Tom C.; Sadhanala, Aditya; Briane, Anouk; Halpert, Jonathan E.; Broch, Katharina; Hodgkiss, Justin M.; Friend, Richard H.; Deschler, Felix
Article

Solution synthesis and optical properties of transition-metal-doped silicon nanocrystals

Journal of Physical Chemistry Letters, v. 6, (9), p. 1573-1576
McVey, Benjamin F.P.; Butkus, Justinas; Halpert, Jonathan E.; Hodgkiss, Justin M.; Tilley, Richard D.
Article

2012 6

A novel and highly efficient photocatalyst based on P ₂₅- graphdiyne nanocomposite

Small, v. 8, (2), p. 265-271
Wang, Shuo; Yi, Luoxin; Halpert, Jonathan E.; Lai, Xiaoyong; Liu, Yuanyuan; Cao, Hongbin; Yu, Ranbo; Wang, Dan; Li, Yuliang
Article

Accurate control of multishelled ZnO hollow microspheres for dye-sensitized solar cells with high efficiency

Advanced Materials, v. 24, (8), p. 1046-1049
Dong, Zhenghong; Lai, Xiaoyong; Halpert, Jonathan E.; Yang, Nailiang; Yi, Luoxin; Zhai, Jin; Wang, Dan; Tang, Zhiyong; Jiang, Lei
Article

Granum-like stacking structures with TiO₂-graphene nanosheets for improving photo-electric conversion

Small, v. 8, (11), p. 1762-1770
Yang, Nailiang; Zhang, Yu; Halpert, Jonathan E.; Zhai, Jin; Wang, Dan; Jiang, Lei
Article

Hierarchical hydroxyapatite microspheres composed of nanorods and their competitive sorption behavior for heavy metal ions

European Journal of Inorganic Chemistry, (16), p. 2665-2668
Zhu, Ronghai; Lai, Xiaoyong; Halpert, Jonathan E.; Yu, Ranbo; Wang, Dan
Article

Recent advances in micro-/nano-structured hollow spheres for energy applications: From simple to complex systems

Energy and Environmental Science, v. 5, (2), p. 5604-5618
Lai, Xiaoyong; Halpert, Jonathan E.; Wang, Dan
Article

Water-soluble monodispersed lanthanide oxide submicrospheres: PVP-assisted hydrothermal synthesis, size-control and luminescence properties

ChemPhysChem, v. 13, (10), p. 2610-2614
Cui, Ying; Lai, Xiaoyong; Li, Li; Hu, Zhudong; Wang, Shuo; Halpert, Jonathan E.; Yu, Ranbo; Wang, Dan
Article

2011 2

Formation of efficient dye-sensitized solar cells by introducing an interfacial layer of hierarchically ordered macro-mesoporous TiO₂ film

Science China Chemistry, v. 54, (6), p. 930-935
Du, Jiang; Lai, Xiaoyong; Halpert, Jonathan E.; Yang, Yu; Wang, Dan
Article

Morphology of contact printed colloidal quantum dots in organic semiconductor films: Implications for QD-LEDs

Physica Status Solidi (C) Current Topics in Solid State Physics, v. 8, (1), p. 120-123
Aidala, Katherine E.; Panzer, Matthew J.; Anikeeva, Polina O.; Halpert, Jonathan E.; Bawendi, Moungi G.; Bulović, Vladimir
Article

2010 3

Air-stable operation of transparent, colloidal quantum dot based LEDs with a unipolar device architecture

Nano Letters, v. 10, (1), p. 24-29
Wood, Vanessa; Panzer, Matthew J.; Caruge, Jean Michel; Halpert, Jonathan E.; Bawendi, Moungi G.; Bulović, Vladimir
Article

Charge transport in mixed CdSe and CdTe colloidal nanocrystal films

Physical Review B - Condensed Matter and Materials Physics, v. 82, (15), article number 155201
Geyer, Scott; Porter, Venda J.; Halpert, Jonathan E.; Mentzel, Tamar S.; Kastner, Marc A.; Bawendi, Moungi G.
Article

Nanoscale morphology revealed at the interface between colloidal quantum dots and organic semiconductor films

Nano Letters, v. 10, (7), p. 2421-2426
Panzer, Matthew J.; Aidala, Katherine E.; Anikeeva, Polina O.; Halpert, Jonathan E.; Bawendi, Moungi G.; Bulović, Vladimir
Article

2009 5

Alternating current driven electroluminescence from ZnSe/ZnS:Mn/ZnS nanocrystals

Nano Letters, v. 9, (6), p. 2367-2371
Wood, Vanessa; Halpert, Jonathan E.; Panzer, Matthew J.; Bawendi, Moungi G.; Bulović, Vladimir
Article

Electrostatic formation of quantum dot/J-aggregate FRET pairs in solution

Journal of Physical Chemistry C, v. 113, (23), p. 9986-9992
Halpert, Jonathan E.; Tischler, Jonathan R.; Nair, Gautham; Walker, Brian J.; Liu, Wenhao; Bulović, Vladimir; Bawendi, Moungi G.
Article

Inkjet-printed quantum dot-polymer composites for full-color AC-driven displays

Advanced Materials, v. 21, (21), p. 2151-2155
Wood, Vanessa; Panzer, Matthew J.; Chen, Jianglong; Bradley, Michael S.; Halpert, Jonathan E.; Bawendi, Moungi G.; Bulović, Vladimir
Article

Quantum dot light-emitting devices with electroluminescence tunable over the entire visible spectrum

Nano Letters, v. 9, (7), p. 2532-2536
Anikeeva, Polina O.; Halpert, Jonathan E.; Bawendi, Moungi G.; Bulović, Vladimir
Article

Selection of metal oxide charge transport layers for colloidal quantum dot LEDs

ACS Nano, v. 3, (11), p. 3581-3586
Wood, V.; Panzer, M. J.; Halpert, J. E.; Caruge, J. M.; Bawendi, M. G.; Bulović, V.
Article

2008 3

Colloidal quantum-dot light-emitting diodes with metal-oxide charge transport layers

Nature Photonics, v. 2, (4), p. 247-250
Caruge, J. M.; Halpert, J. E.; Wood, V.; Buloví, V.; Bawendi, M. G.
Article

Electronic and excitonic processes in light-emitting devices based on organic materials and colloidal quantum dots

Physical Review B - Condensed Matter and Materials Physics, v. 78, (8), article number 085434
Anikeeva, P. O.; Madigan, C. F.; Halpert, J. E.; Bawendi, M. G.; Bulović, V.
Article

Photoconduction in annealed and chemically treated CdSe/ZnS inorganic nanocrystal films

Journal of Physical Chemistry C, v. 112, (7), p. 2308-2316
Porter, Venda J.; Geyer, Scott; Halpert, Jonathan E.; Kastner, Marc A.; Bawendi, Moungi G.
Article

2007 2

Electroluminescence from a mixed red-green-blue colloidal quantum dot monolayer

Nano Letters, v. 7, (8), p. 2196-2200
Anikeeva, Polina O.; Halpert, Jonathan E.; Bawendi, Moungi G.; Bulović, Vladimir
Article

Efficient all-inorganic colloidal quantum Dot LEDs

Conference on Lasers and Electro-Optics, 2007, CLEO 2007, 2007, article number 4452605
Wood, V.; Caruge, J. M.; Halpert, J. E.; Bawendi, M. G.; Bulović, V.
Conference paper

2006 4

Color-saturated green-emitting QD-LEDs

Angewandte Chemie - International Edition, v. 45, (35), p. 5796-5799
Steckel, Jonathan S.; Snee, Preston; Coe-Sullivan, Seth; Zimmer, John P.; Halpert, Jonathan E.; Anikeeva, Polina; Kim, Lee Ann; Bulovic, Vladimir; Bawendi, Moungi G.
Article

Efficient exciton separation in mixed films of CdSe and CdTe nanoparticles

ACS National Meeting Book of Abstracts, v. 231
Porter, Venda J.; Halpert, Jonathan E.; Nair, Gautham P.; Mentzel, Tamar; Kastner, Marc A.; Bawendi, Moungi G.
Article

NiO as an inorganic hole-transporting layer in quantum-dot light-emitting devices

Nano Letters, v. 6, (12), p. 2991-2994
Caruge, Jean Michel; Halpert, Jonathan E.; Bulović, Vladimir; Bawendi, Moungi G.
Article

Synthesis of CdSe/CdTe nanobarbells

Journal of the American Chemical Society, v. 128, (39), p. 12590-12591
Halpert, Jonathan E.; Porter, Venda J.; Zimmer, John P.; Bawendi, Moungi G.
Article

2005 1

Multiexciton fluorescence from semiconductor nanocrystals

Chemical Physics, v. 318, (1-2), p. 71-81
Fisher, Brent; Caruge, Jean Michel; Chan, Yin Thai; Halpert, Jonathan; Bawendi, Moungi G.
Article

Teaching Assignment

2025-26 Fall 2 2024-25 Summer 0 2024-25 Spring 3 2024-25 Winter 0 2024-25 Fall 4 2023-24 Summer 0

CHEM2410	Physical Chemistry I: Equilibrium Thermodynamics and Statistical Mechanics
SCIE4500	IRE Research Project II

CHEM6030C	Chemistry of Energy
CHMS5130	Materials Analysis
SCIE2500	Guided Study on Research II

CHEM2410	Physical Chemistry I: Equilibrium Thermodynamics and Statistical Mechanics
CHEM4689	Capstone Project
CHEM4691	Capstone Research I
SCIE3500	IRE Research Project I

No Teaching Assignments

Research Postgraduate (RPG) Supervision

From January 2022 to December 2025 (As of 15 December 2025)

All Supervisions Current RPGs Graduated RPGs

Current RPGs

Doctor of Philosophy

LI, Jiawen (co-supervision)
Chemistry
ZHANG, Chao (co-supervision)
Chemistry
MA, Tai Ho Gideon
Chemistry
CUI, Zewei
Chemistry
GE, Jianchao
Chemistry
HUANG, Duan
Chemistry
KUMAR, Nitish
Chemistry
DING, Pengbo
Chemistry

Master of Philosophy

AU, Ching Man
Chemistry

Graduated RPGs

Doctor of Philosophy

CHEN, Li (co-supervision)
Chemistry( Completed in 2025 )
LAM, Davy
Chemistry( Completed in 2025 )
ZOU, Bosen (co-supervision)
Chemistry( Completed in 2025 )
KO, Pui Kei
Chemistry( Completed in 2024 )
QAMMAR, Memoona
Chemistry( Completed in 2024 )
CHEN, Dezhang (co-supervision)
Chemistry( Completed in 2023 )
GENG, Pai
Chemistry( Completed in 2023 )
XING, Zengshan (co-supervision)
Physics( Completed in 2023 )
LI, Cham Heng Angus
Chemistry( Completed in 2022 )
LI, Yanyan
Chemistry( Completed in 2022 )
TEWARI, Neha
Chemistry( Completed in 2022 )

Master of Philosophy

CHEUNG, Hiu Yeung
Chemistry( Completed in 2025 )
TSANG, Hoi Lam Tammy
Chemistry( Completed in 2025 )

Projects

From January 2023 to December 2025

All Projects 5 Leading Projects 2 Participating Projects 3

Photo-aligned Perovskite Nanorods for Polarized Down-conversion Emission Films Achieved by Optically Induced In-situ Oriented Growth and Ink-printed Halide Pixilation

通過光誘導原位定向生長和油墨印刷鹵化物像素化實現偏振下轉換發射薄膜的光取向鈣鈦礦納米棒 Leading

Innovation and Technology Fund
Project Team (HKUST)
HALPERT Jonathan Eugene (Lead)

SRIVASTAVA Abhishek Kumar
2023 -
Can wonder crystal Perovskites transform solar power generation? -Discovering the links between strain and material properties Participating

Royal Society of New Zealand
Project Team (HKUST)
HALPERT Jonathan Eugene
2023 -
Cesium Copper Halide Perovskite Nanocrystals for AC-Driven White Lights and RGB Transparent Displays

交流驅動白光和RGB透明顯示器用的鹵化銫銅鈣鈦礦納米晶體 Leading

RGC - General Research Fund
Project Team (HKUST)
HALPERT Jonathan Eugene (Lead)
2021 - 2024
The Indium-Rich Metal Jet: A Bright Dual Wavelength X-ray Source for S-XRD and SAXS

富銦 MetalJet: 用於S-XRD和SAXS的明亮的雙波長X射線源 Participating

RGC - Collaborative Research Fund
Project Team (HKUST)
WILLIAMS Ian Duncan (Lead)

GUO Zhihong

HALPERT Jonathan Eugene
2021 - 2024
State Key Laboratory of Displays and Opto-Electronics (SKLDOE)

顯示與光電子全國重點實驗室 Participating

Innovation and Technology Fund
Project Team (HKUST)
NEYTS Kristiaan (Lead)

CHEN Kevin Jing

FAN Zhiyong

HALPERT Jonathan Eugene

LAU Kei May

LIN Yen Hung

POON Andrew Wing On

SRIVASTAVA Abhishek Kumar

XIE Yuan

YAN Henry He

YUE Chik Patrick

ZHANG Rui

ZHOU Yuanyuan
2013 -

Research Interest

Publications

2025 8

2024 10

2023 8

2022 9

2021 11

2020 6

2019 6

2018 5

2017 5

2016 1

2015 4

2012 6

2011 2

2010 3

2009 5

2008 3

2007 2

2006 4

2005 1

Article 8

Article 10

Article 7

Conference paper 1

Article 9

Article 11

Article 6

Article 5

Conference paper 1

Article 5

Article 5

Article 1

Article 4

Article 6

Article 2

Article 3

Article 5

Article 3

Article 1

Conference paper 1

Article 4

Article 1

2019 6

2018 5

2017 5

2016 1

2015 4

2012 6

2011 2

2010 3

2009 5

2008 3

2007 2

2006 4

2005 1

Teaching Assignment

Research Postgraduate (RPG) Supervision

From January 2022 to December 2025 (As of 15 December 2025)

Current RPGs

Graduated RPGs

Projects

From January 2023 to December 2025

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