Dengyang GUO
郭澄陽

PhD in Chemical Engineering
Delft University of Technology, 2019

Research Assistant Professor
Department of Physics

Junior Fellow
HKUST Jockey Club Institute for Advanced Study

Google Scholar
pPHTZj0AAAAJ
ORCID
0000-0002-2124-6208
ResearcherID
ABA-3563-2021
Scopus ID
57195225756

Research Interest

  • Optoelectronics
  • Time-resolved spectroscopy
  • Semiconductor physics

Publications

2023 1

Study the ultrafast dynamics of excited states by time-resolved spectroscopies


Guo, Dengyang
Conference paper
2022 1

Soliton Disentangling and Ferroelectric Hysteresis in Bilayer MoS2 Nanostructures with Reconstructed Moiré Superlattices

ACS Applied Nano Materials, v. 5, (12), December 2022, p. 17461-17467
Li, Yanshuang; Zeng, Huan; Xie, Xiuhua; Li, Binghui; Liu, Jishan; Wang, Shuangpeng; Guo, Dengyang; Li, Yuanzheng; Liu, Weizhen; Shen, Dezhen
Article
2021 2

Perovskite solar cells with embedded homojunction via nonuniform metal ion doping

Cell Reports Physical Science, v. 2, (5), 19 May 2021, article number 100415
Lin, Yuze; Li, Tao; Liu, Ye; Bahrami, Behzad; Guo, Dengyang; Fang, Yanjun; Shao, Yuchuan; Chowdhury, Ashraful Haider; Wang, Qi; Deng, Yehao; Gruverman, Alexei; Savenije, Tom J.; Qiao, Qiquan; Huang, Jinsong
Article

Stabilized tilted-octahedra halide perovskites inhibit local formation of performance-limiting phases

Science, v. 374, (6575), December 2021, p. 1598-1605
Doherty, Tiarnan A.S.; Nagane, Satyawan; Kubicki, Dominik J.; Jung, Young-Kwang; Johnstone, Duncan N.; Iqbal, Affan N.; Guo, Dengyang; Frohna, Kyle; Danaie, Mohsen; Tennyson, Elizabeth M.; Macpherson, Stuart; Abfalterer, Anna; Anaya, Miguel; Chiang, Yu-Hsien; Crout, Phillip; Ruggeri, Francesco Simone; Collins, Sean M.; Grey, Clare P.; Walsh, Aron; Midgley, Paul A.; Stranks, Samuel D.
Article
2020 3

Dual-source vacuum deposition of pure and mixed halide 2D perovskites: Thin film characterization and processing guidelines

Journal of Materials Chemistry C, v. 8, (6), February 2020, p. 1902-1908
La-Placa, Maria-Grazia; Guo, Dengyang; Gil-Escrig, Lidón; Palazon, Francisco; Sessolo, Michele; Bolink, Henk J.
Article

Quantifying Charge-Carrier Mobilities and Recombination Rates in Metal Halide Perovskites from Time-Resolved Microwave Photoconductivity Measurements

Advanced Energy Materials, v. 10, (26), July 2020, article number 1903788
Savenije, Tom J.; Guo, Dengyang; Caselli, Valentina M.; Hutter, Eline M.
Article

Predicting the Maximum Open Circuit Voltage of Perovskite Solar Cells from Time-Resolved Measurements


Guo, Dengyang
Conference paper
2019 5

A Highly Emissive Surface Layer in Mixed-Halide Multication Perovskites

Advanced Materials, v. 31, (42), October 2019, article number 1902374, Special Issue: Graphdiyne
Andaji-Garmaroudi, Zahra; Abdi-Jalebi, Mojtaba; Guo, Dengyang; Macpherson, Stuart; Sadhanala, Aditya; Tennyson, Elizabeth M.; Ruggeri, Edoardo; Anaya, Miguel; Galkowski, Krzysztof; Shivanna, Ravichandran; Lohmann, Kilian; Frohna, Kyle; Mackowski, Sebastian; Savenije, Tom J.; Friend, Richard H.; Stranks, Samuel D.
Article

Comparing the calculated fermi level splitting with the open-circuit voltage in various perovskite cells

ACS Energy Letters, v. 4, (4), April 2019, p. 855-860
Guo, Dengyang; Caselli, Valentina M.; Hutter, Eline M.; Savenije, Tom J.
Article

Reversible Removal of Intermixed Shallow States by Light Soaking in Multication Mixed Halide Perovskite Films

ACS Energy Letters, v. 4, (10), October 2019, p. 2360-2367
Guo, Dengyang; Andaji Garmaroudi, Zahra; Abdi-Jalebi, Mojtaba; Stranks, Samuel D.; Savenije, Tom J.
Article

The importance of relativistic effects on two-photon absorption spectra in metal halide perovskites

Nature Communications, v. 10, (1), 25 November 2019, article number 5342
Wei, Zimu; Guo, Dengyang; Thieme, Jos; Katan, Claudine; Caselli, Valentina M.; Even, Jacky; Savenije, Tom J.
Article

Vacuum-Deposited 2D/3D Perovskite Heterojunctions

ACS Energy Letters, v. 4, (12), 13 December 2019, p. 2893-2901
La-Placa, Maria-Grazia; Gil-Escrig, Lidón; Guo, Dengyang; Palazon, Francisco; Savenije, Tom J.; Sessolo, Michele; Bolink, Henk J.
Article
2018 4

Can we use time-resolved measurements to get steady-state transport data for halide perovskites?

Journal of Applied Physics, v. 124, (10), September 2018, article number 103103
Levine, Igal; Gupta, Satyajit; Bera, Achintya; Ceratti, Davide; Hodes, Gary; Cahen, David; Guo, Dengyang; Savenije, Tom J.; Ávila, Jorge; Bolink, Henk J.; Millo, Oded; Azulay, Doron; Balberg, Isaac
Article

How Charge Dynamics Change in Mixed Halide Perovskites on Light Soaking


Guo, Dengyang; Garmaroudi, Zahra; Stranks, Samuel; Savenije, Tom
Conference paper

How the Dynamics of Charge-Carriers Change on Light Soaking in Mixed Halide Perovskites


Guo, Dengyang
Conference paper

Reduction of non-Radiative Decay in Metal Halide Perovskites by light Soaking in Humid Air


Guo, Dengyang
Conference paper
2017 5

Dopant compensation in alloyed CH3NH3PbBr3-xClx perovskite single crystals for gamma-ray spectroscopy

Nature Materials, v. 16, (8), 1 August 2017, p. 826-833
Wei, Haotong; Desantis, Dylan; Wei, Wei; Deng, Yehao; Guo, Dengyang; Savenije, Tom J.; Cao, Lei; Huang, Jinsong
Article

Metal Halide Perovskite Polycrystalline Films Exhibiting Properties of Single Crystals

Joule, v. 1, (1), 6 September 2017, p. 155-167
Brenes, Roberto; Guo, Dengyang; Osherov, Anna; Noel, Nakita K.; Eames, Christopher; Hutter, Eline M.; Pathak, Sandeep K.; Niroui, Farnaz; Friend, Richard H.; Islam, M. Saiful; Snaith, Henry J.; Bulović, Vladimir; Savenije, Tom J.; Stranks, Samuel D.
Article

Photoluminescence from Radiative Surface States and Excitons in Methylammonium Lead Bromide Perovskites

Journal of Physical Chemistry Letters, v. 8, (17), 7 September 2017, p. 4258-4263
Guo, Dengyang; Bartesaghi, Davide; Wei, Haotong; Hutter, Eline M.; Huang, Jinsong; Savenije, Tom J.
Article

Light-Induced Charge Carrier Dynamics in CH3NH3PbBr3 Single Crystals


Guo, Dengyang
Conference paper

Structure Dependent Charge Carrier Dynamics in CH3NH3PbBr3 Single Crystals


Guo, Dengyang
Conference paper
2016 1

Orientation Dependent Carrier Mobility in Perovskite Single Crystals


Guo, Dengyang
Conference paper
2015 1

Surface Plasmon Effect of Carbon Nanodots

Nanoscale, v. 7, (45), December 2015, p. 18908-18913
Guo, Dengyang; Shan, Chongxin; Liu, Kaikai; Lou, Qing; Shen, Dezhen
Article
2014 1

Highly Sensitive Ultraviolet Photodetectors Fabricated from ZnO Quantum Dots/Carbon Nanodots Hybrid Films

Scientific Reports, v. 4, December 2014, article number 7469
Guo, Dengyang; Shan, Chongxin; Qu, Songnan; Shen, Dezhen
Article
Conference paper 1

Study the ultrafast dynamics of excited states by time-resolved spectroscopies


Guo, Dengyang
Article 1

Soliton Disentangling and Ferroelectric Hysteresis in Bilayer MoS2 Nanostructures with Reconstructed Moiré Superlattices

ACS Applied Nano Materials, v. 5, (12), December 2022, p. 17461-17467
Li, Yanshuang; Zeng, Huan; Xie, Xiuhua; Li, Binghui; Liu, Jishan; Wang, Shuangpeng; Guo, Dengyang; Li, Yuanzheng; Liu, Weizhen; Shen, Dezhen
Article 2

Perovskite solar cells with embedded homojunction via nonuniform metal ion doping

Cell Reports Physical Science, v. 2, (5), 19 May 2021, article number 100415
Lin, Yuze; Li, Tao; Liu, Ye; Bahrami, Behzad; Guo, Dengyang; Fang, Yanjun; Shao, Yuchuan; Chowdhury, Ashraful Haider; Wang, Qi; Deng, Yehao; Gruverman, Alexei; Savenije, Tom J.; Qiao, Qiquan; Huang, Jinsong

Stabilized tilted-octahedra halide perovskites inhibit local formation of performance-limiting phases

Science, v. 374, (6575), December 2021, p. 1598-1605
Doherty, Tiarnan A.S.; Nagane, Satyawan; Kubicki, Dominik J.; Jung, Young-Kwang; Johnstone, Duncan N.; Iqbal, Affan N.; Guo, Dengyang; Frohna, Kyle; Danaie, Mohsen; Tennyson, Elizabeth M.; Macpherson, Stuart; Abfalterer, Anna; Anaya, Miguel; Chiang, Yu-Hsien; Crout, Phillip; Ruggeri, Francesco Simone; Collins, Sean M.; Grey, Clare P.; Walsh, Aron; Midgley, Paul A.; Stranks, Samuel D.
Article 2

Dual-source vacuum deposition of pure and mixed halide 2D perovskites: Thin film characterization and processing guidelines

Journal of Materials Chemistry C, v. 8, (6), February 2020, p. 1902-1908
La-Placa, Maria-Grazia; Guo, Dengyang; Gil-Escrig, Lidón; Palazon, Francisco; Sessolo, Michele; Bolink, Henk J.

Quantifying Charge-Carrier Mobilities and Recombination Rates in Metal Halide Perovskites from Time-Resolved Microwave Photoconductivity Measurements

Advanced Energy Materials, v. 10, (26), July 2020, article number 1903788
Savenije, Tom J.; Guo, Dengyang; Caselli, Valentina M.; Hutter, Eline M.
Conference paper 1

Predicting the Maximum Open Circuit Voltage of Perovskite Solar Cells from Time-Resolved Measurements


Guo, Dengyang
Article 5

A Highly Emissive Surface Layer in Mixed-Halide Multication Perovskites

Advanced Materials, v. 31, (42), October 2019, article number 1902374, Special Issue: Graphdiyne
Andaji-Garmaroudi, Zahra; Abdi-Jalebi, Mojtaba; Guo, Dengyang; Macpherson, Stuart; Sadhanala, Aditya; Tennyson, Elizabeth M.; Ruggeri, Edoardo; Anaya, Miguel; Galkowski, Krzysztof; Shivanna, Ravichandran; Lohmann, Kilian; Frohna, Kyle; Mackowski, Sebastian; Savenije, Tom J.; Friend, Richard H.; Stranks, Samuel D.

Comparing the calculated fermi level splitting with the open-circuit voltage in various perovskite cells

ACS Energy Letters, v. 4, (4), April 2019, p. 855-860
Guo, Dengyang; Caselli, Valentina M.; Hutter, Eline M.; Savenije, Tom J.

Reversible Removal of Intermixed Shallow States by Light Soaking in Multication Mixed Halide Perovskite Films

ACS Energy Letters, v. 4, (10), October 2019, p. 2360-2367
Guo, Dengyang; Andaji Garmaroudi, Zahra; Abdi-Jalebi, Mojtaba; Stranks, Samuel D.; Savenije, Tom J.

The importance of relativistic effects on two-photon absorption spectra in metal halide perovskites

Nature Communications, v. 10, (1), 25 November 2019, article number 5342
Wei, Zimu; Guo, Dengyang; Thieme, Jos; Katan, Claudine; Caselli, Valentina M.; Even, Jacky; Savenije, Tom J.

Vacuum-Deposited 2D/3D Perovskite Heterojunctions

ACS Energy Letters, v. 4, (12), 13 December 2019, p. 2893-2901
La-Placa, Maria-Grazia; Gil-Escrig, Lidón; Guo, Dengyang; Palazon, Francisco; Savenije, Tom J.; Sessolo, Michele; Bolink, Henk J.
Article 1

Can we use time-resolved measurements to get steady-state transport data for halide perovskites?

Journal of Applied Physics, v. 124, (10), September 2018, article number 103103
Levine, Igal; Gupta, Satyajit; Bera, Achintya; Ceratti, Davide; Hodes, Gary; Cahen, David; Guo, Dengyang; Savenije, Tom J.; Ávila, Jorge; Bolink, Henk J.; Millo, Oded; Azulay, Doron; Balberg, Isaac
Conference paper 3

How Charge Dynamics Change in Mixed Halide Perovskites on Light Soaking


Guo, Dengyang; Garmaroudi, Zahra; Stranks, Samuel; Savenije, Tom

How the Dynamics of Charge-Carriers Change on Light Soaking in Mixed Halide Perovskites


Guo, Dengyang

Reduction of non-Radiative Decay in Metal Halide Perovskites by light Soaking in Humid Air


Guo, Dengyang
Article 3

Dopant compensation in alloyed CH3NH3PbBr3-xClx perovskite single crystals for gamma-ray spectroscopy

Nature Materials, v. 16, (8), 1 August 2017, p. 826-833
Wei, Haotong; Desantis, Dylan; Wei, Wei; Deng, Yehao; Guo, Dengyang; Savenije, Tom J.; Cao, Lei; Huang, Jinsong

Metal Halide Perovskite Polycrystalline Films Exhibiting Properties of Single Crystals

Joule, v. 1, (1), 6 September 2017, p. 155-167
Brenes, Roberto; Guo, Dengyang; Osherov, Anna; Noel, Nakita K.; Eames, Christopher; Hutter, Eline M.; Pathak, Sandeep K.; Niroui, Farnaz; Friend, Richard H.; Islam, M. Saiful; Snaith, Henry J.; Bulović, Vladimir; Savenije, Tom J.; Stranks, Samuel D.

Photoluminescence from Radiative Surface States and Excitons in Methylammonium Lead Bromide Perovskites

Journal of Physical Chemistry Letters, v. 8, (17), 7 September 2017, p. 4258-4263
Guo, Dengyang; Bartesaghi, Davide; Wei, Haotong; Hutter, Eline M.; Huang, Jinsong; Savenije, Tom J.
Conference paper 2

Light-Induced Charge Carrier Dynamics in CH3NH3PbBr3 Single Crystals


Guo, Dengyang

Structure Dependent Charge Carrier Dynamics in CH3NH3PbBr3 Single Crystals


Guo, Dengyang
Conference paper 1

Orientation Dependent Carrier Mobility in Perovskite Single Crystals


Guo, Dengyang
Article 1

Surface Plasmon Effect of Carbon Nanodots

Nanoscale, v. 7, (45), December 2015, p. 18908-18913
Guo, Dengyang; Shan, Chongxin; Liu, Kaikai; Lou, Qing; Shen, Dezhen
Article 1

Highly Sensitive Ultraviolet Photodetectors Fabricated from ZnO Quantum Dots/Carbon Nanodots Hybrid Films

Scientific Reports, v. 4, December 2014, article number 7469
Guo, Dengyang; Shan, Chongxin; Qu, Songnan; Shen, Dezhen
2019 5

A Highly Emissive Surface Layer in Mixed-Halide Multication Perovskites

Advanced Materials, v. 31, (42), October 2019, article number 1902374, Special Issue: Graphdiyne
Andaji-Garmaroudi, Zahra; Abdi-Jalebi, Mojtaba; Guo, Dengyang; Macpherson, Stuart; Sadhanala, Aditya; Tennyson, Elizabeth M.; Ruggeri, Edoardo; Anaya, Miguel; Galkowski, Krzysztof; Shivanna, Ravichandran; Lohmann, Kilian; Frohna, Kyle; Mackowski, Sebastian; Savenije, Tom J.; Friend, Richard H.; Stranks, Samuel D.
Article

Comparing the calculated fermi level splitting with the open-circuit voltage in various perovskite cells

ACS Energy Letters, v. 4, (4), April 2019, p. 855-860
Guo, Dengyang; Caselli, Valentina M.; Hutter, Eline M.; Savenije, Tom J.
Article

Reversible Removal of Intermixed Shallow States by Light Soaking in Multication Mixed Halide Perovskite Films

ACS Energy Letters, v. 4, (10), October 2019, p. 2360-2367
Guo, Dengyang; Andaji Garmaroudi, Zahra; Abdi-Jalebi, Mojtaba; Stranks, Samuel D.; Savenije, Tom J.
Article

The importance of relativistic effects on two-photon absorption spectra in metal halide perovskites

Nature Communications, v. 10, (1), 25 November 2019, article number 5342
Wei, Zimu; Guo, Dengyang; Thieme, Jos; Katan, Claudine; Caselli, Valentina M.; Even, Jacky; Savenije, Tom J.
Article

Vacuum-Deposited 2D/3D Perovskite Heterojunctions

ACS Energy Letters, v. 4, (12), 13 December 2019, p. 2893-2901
La-Placa, Maria-Grazia; Gil-Escrig, Lidón; Guo, Dengyang; Palazon, Francisco; Savenije, Tom J.; Sessolo, Michele; Bolink, Henk J.
Article
2018 4

Can we use time-resolved measurements to get steady-state transport data for halide perovskites?

Journal of Applied Physics, v. 124, (10), September 2018, article number 103103
Levine, Igal; Gupta, Satyajit; Bera, Achintya; Ceratti, Davide; Hodes, Gary; Cahen, David; Guo, Dengyang; Savenije, Tom J.; Ávila, Jorge; Bolink, Henk J.; Millo, Oded; Azulay, Doron; Balberg, Isaac
Article

How Charge Dynamics Change in Mixed Halide Perovskites on Light Soaking


Guo, Dengyang; Garmaroudi, Zahra; Stranks, Samuel; Savenije, Tom
Conference paper

How the Dynamics of Charge-Carriers Change on Light Soaking in Mixed Halide Perovskites


Guo, Dengyang
Conference paper

Reduction of non-Radiative Decay in Metal Halide Perovskites by light Soaking in Humid Air


Guo, Dengyang
Conference paper
2017 5

Dopant compensation in alloyed CH3NH3PbBr3-xClx perovskite single crystals for gamma-ray spectroscopy

Nature Materials, v. 16, (8), 1 August 2017, p. 826-833
Wei, Haotong; Desantis, Dylan; Wei, Wei; Deng, Yehao; Guo, Dengyang; Savenije, Tom J.; Cao, Lei; Huang, Jinsong
Article

Metal Halide Perovskite Polycrystalline Films Exhibiting Properties of Single Crystals

Joule, v. 1, (1), 6 September 2017, p. 155-167
Brenes, Roberto; Guo, Dengyang; Osherov, Anna; Noel, Nakita K.; Eames, Christopher; Hutter, Eline M.; Pathak, Sandeep K.; Niroui, Farnaz; Friend, Richard H.; Islam, M. Saiful; Snaith, Henry J.; Bulović, Vladimir; Savenije, Tom J.; Stranks, Samuel D.
Article

Photoluminescence from Radiative Surface States and Excitons in Methylammonium Lead Bromide Perovskites

Journal of Physical Chemistry Letters, v. 8, (17), 7 September 2017, p. 4258-4263
Guo, Dengyang; Bartesaghi, Davide; Wei, Haotong; Hutter, Eline M.; Huang, Jinsong; Savenije, Tom J.
Article

Light-Induced Charge Carrier Dynamics in CH3NH3PbBr3 Single Crystals


Guo, Dengyang
Conference paper

Structure Dependent Charge Carrier Dynamics in CH3NH3PbBr3 Single Crystals


Guo, Dengyang
Conference paper
2016 1

Orientation Dependent Carrier Mobility in Perovskite Single Crystals


Guo, Dengyang
Conference paper
2015 1

Surface Plasmon Effect of Carbon Nanodots

Nanoscale, v. 7, (45), December 2015, p. 18908-18913
Guo, Dengyang; Shan, Chongxin; Liu, Kaikai; Lou, Qing; Shen, Dezhen
Article
2014 1

Highly Sensitive Ultraviolet Photodetectors Fabricated from ZnO Quantum Dots/Carbon Nanodots Hybrid Films

Scientific Reports, v. 4, December 2014, article number 7469
Guo, Dengyang; Shan, Chongxin; Qu, Songnan; Shen, Dezhen
Article
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Teaching Assignment

UROP1000 Undergraduate Research Opportunities
PHYS3037 Honors Quantum Mechanics I
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Projects

From January 2023 to December 2025
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