Guo Dengyang

Dr. Chengyang Guo is an Assistant Professor and PhD Supervisor at the Insititute of Materials Science and Engineering, Tsinghua Shenzhen International Graduate School. His research primarily focuses on photophysics and ultrafast spectroscopy, with an emphasis on investigating carrier dynamics in bulk and low-dimensional optoelectronic semiconductors. He develops multimodal methodologies by integrating characterization techniques such as transient absorption (TA), time-resolved photoluminescence (TRPL), time-resolved microwave conductivity (TRMC), and terahertz (THz) spectroscopy. This integrated approach aims to deconvolute radiative and non-radiative recombination pathways in carriers, thereby guiding the performance optimization of devices. For novel systems exhibiting quantum effects, his work explores the observable conditions and experimental pathways for novel quantum photophysical processes under both single-body and many-body interactions. He previously conducted postdoctoral research at the Cavendish Laboratory, University of Cambridge, and served as a Research Assistant Professor at the Hong Kong University of Science and Technology. He is currently establishing a multimodal platform for ultrafast spectroscopy and photoexcited carrier dynamics to advance research on quantum effect mechanisms and their application in cross-disciplinary areas involving low-dimensional materials.

2015-2019  Delft University of Technology, Physical Chemistry, PhD

2012-2015  Chinese Academy of Sciences, CIOMP, Condensed Matter Physics , Master

2007-2011  Central South University, Material Science and Engineering, Bachelor

February 2026 – present, Tsinghua Shenzhen International Graduate School, Assistant Professor

October 2025 – January 2026, University of Cambridge, Visiting Researcher

July 2023 – July 2025, Hong Kong University of Science and Technology, Research Assistant Professor

December 2020 – June 2023, University of Cambridge, Postdoc

《Molecules》Guest Editor (MDPI, Basel, Switzerland)

Ultrafast Spectroscopies, Photophysics. (Low-Temperature) Transient Absorption, Time-resolved Microwave Photoconductivity, Terahertz, and Photoluminescence.

[1] Guo, D.; Selby, T. A.; Kahmann, S.; Gorgon, S.; Dai, L.; Dubajic, M.; Yang, T. C.-J.; Fairclough, S. M.; Marsh, T.; Jacobs, I. E.; Wu, B.; Guo, R.; Nagane, S.; Doherty, T. A. S.; Ji, K.; Liu, C.; Lu, Y.; Kang, T.; Mamak, C.; Mao, J.; Müller-Buschbaum, P.; Sirringhaus, H.; Midgley, P. A.; Stranks, S. D. Picosecond quantum transients in halide perovskite nanodomain superlattices. Nature Nanotechnology 2025, 20, 1771–1778.

[2] Guo, D.; Baldwin, A.; Nagane, S.; Gorgon, S.; McPherson, S.; Abfalterer, A.; Friend, R.; Stranks, S. D. Modulating non-radiative recombination related to shallow traps in halide perovskites. Applied Physics Reviews 2025 (Accepted). doi: 10.1063/5.0279622.

[3] Guo, D.; Caselli, V.; Hutter, E. M.; Savenije, T. J. Comparing the calculated Fermi level splitting with the open-circuit voltage in various perovskite cells. ACS Energy Letters 2019, 4, 855–860. (Cover of the issue; Highlighted by the editors in “Energy Selects”; One of the most read articles in April 2019).

[4] Guo, D.; Garmaroudi, Z. A.; Abdi-Jalebi, M.; Stranks, S. D.; Savenije, T. J. Reversible removal of intermixed shallow states by light soaking in multi-cation mixed halide perovskite films. ACS Energy Letters 2019, 4, 2360–2367.

[5] Guo, D.; Bartesaghi, D.; Wei, H.; Hutter, E. M.; Huang, J.; Savenije, T. J. Photoluminescence from

Radiative Surface States and Excitons in Methylammonium Lead Bromide Perovskites. The Journal of Physical Chemistry Letters 2017, 8, 4258-4263.

2023 - 2025 IAS Junior Fellow, HKUST Jockey Club Institute for Advanced Study

2022 Seal of Excellence, European Commission

2014 China National Scholarship