Brief Introduction

Kwai Hei Li received the B.Eng. and Ph.D. degrees in Electrical and Electronic Engineering from the University of Hong Kong (HKU) in 2009 and 2013, respectively. After graduation, he received 1-year postdoctoral research training at McGill University in Canada. He worked as a Research Assistant Professor in the Department of Electrical and Electronic Engineering at HKU from 2016 to 2019. He is currently an Assistant Professor at the Southern University of Science and Technology (SUSTech). His research interests are the design, fabrication, and characterization of wide bandgap semiconductors devices. He has published more than 160 papers in international peer-reviewed academic journals and conferences.

Educational Background

2013 Doctor of Philosophy, The University of Hong Kong

2009 Bachelor of Electronic and Electrical Engineering, The University of Hong Kong

Professional Experiences

2019-Present Assistant Professor, Southern University of Science and Technology

2016-2019 Research Assistant Professor, The University of Hong Kong

2014-2016 Post-doctoral Fellow, The University of Hong Kong

2013-2014 Post-doctoral Fellow, McGill University

Research Interests

Wide bandgap semiconductor device and integration
For more information, please visit the website: http://khli-sustech.sxl.cn.

Awards & Honors

2024 Gold Medal at the 49th Geneva International Exhibition of Inventions

2024 Nomination Award for Top 10 Semiconductor Research Progress in 2024

2022 IEEE OGC 2022 Best Paper Award
2022 ACP 2022 Best Poster Award
2019 Shenzhen Peacock Program: Category B Talents
2015 Springer Theses Award
2013 Award for Outstanding Research Postgraduate Student, University of Hong Kong
2011 Sir Edward Youde Memorial Fellowships for Postgraduate Research Students

Selected Publication

(1) J. Jing#, F. Sun#, Z. Wang, L. Ma, Y. Luo, Z. Du, T. Zhang, Y. Wang, F. Xu, X. Ma, X. Wang, Y. Zhou, J.K.H. Tsoi, J. Wrachtrup, N. Wong, C. Li, D.-K. Ki, Q. Wang*, K.H. Li*, Y. Lin*, and Z. Chu*
Scalable production of ultraflat and ultraflexible diamond membrane
Nature 636, 627-634 (2024). 

(2) J. Jing, Y. Luo, Y. Wang, Z. Wang, Q. Wang*, K.H. Li*, and Zhiqin Chu*
Strain-enhanced responsivity of scalable and flexible diamond UV detector
IEEE Electron Device Letters, accepted (2025).

(3) T. Ye#, J. Chen#, X. Tang, and K.H. Li*
Biomimetic Hair-Assisted GaN Optical Devices for Bidirectional Airflow Detection
Microsystems & Nanoengineering 10(1), 166 (2024). 

(4) S. Gui, B. Yu, Y. Luo, L. Chen, and K.H. Li*
Rapid-Response, Low-Detection-Limit, Positive-Negative Air Pressure Sensing: GaN Chips Integrated with Hydrophobic PDMS Films
Microsystems & Nanoengineering 10(1), 162 (2024). (selected as the Feature Article)

(5) T. Chen#, R. Huang#, L. Zhu*, and K.H. Li*
III-Nitride Optochip-in-Sphere for Dual-Axis Angle Detection
IEEE Electron Device Letters 45(8), 1516-1519 (2024). (Selected as the Editors' Pick)

(6) J. Yin, Y. Luo, L. Chen, Q. Wang, H. Yu, and K.H. Li*
High-Resolution Optical Three-Axis Tactile Microsensor Based on III-Nitride Devices with Integrated PDMS Bumps
IEEE Electron Device Letters 44(12), 2035-2038 (2023). 

(7) J. Yin, B. Yu, Y. Luo, Q. Wang, H. Yu, and K.H. Li*
Optomechanical Switches and Logic Gate Functions Based on GaN-on-Sapphire Devices Integrated With PDMS Membranes
IEEE Electron Device Letters 44(7), 1192-1195 (2023). 

(8) F. Geng#, B. Yu#, and K.H. Li*
Fast response PDMS/GaN Optical Vacuum Microsensors
IEEE Electron Device Letters 44(2), 310-304 (2023). 

(9) H. Yang#, Y. Luo#, G. Lu#, Y. Chai*, Z. Chu*, and K.H. Li*
Viscosity Sensors Based on III-Nitride Optical Devices Integrated With Droplet Sliding Channels
IEEE Electron Device Letters 43(12), 2169-2172 (2022). (Selected as the Editors' Pick). 

(10) J. Yin, H. Yang, Y. Luo, Q. Wang, H. Yu, and K.H. Li*
III-Nitride Microsensors for 360° Angle Detection
IEEE Electron Device Letters 43(3), 458-461 (2022). (Selected as the Editors' Pick). 

(11) Y. Luo, X. An, L. Chen, and K.H. Li*
Chip-Scale Optical Airflow Sensor
Microsystems & Nanoengineering 8(1), 4 (2022). 

(12) X. An#, Y. Luo#, B. Yu, L. Chen, and K.H. Li*
A Chip-Scale GaN-Based Optical Pressure Sensor With Microdome-Patterned Polydimethylsiloxane (PDMS)
IEEE Electron Device Letters 42(10), 1532-1535 (2021).

(13) Y. Luo#, B. Yu#, L. Chen, and K.H. Li*
Micro Humidity Sensor based on a GaN Chip with Silica Opal
IEEE Electron Device Letters 42(5), 743-746 (2021). (Selected as the Editors' Pick and Front Cover). 

(14) K.H. Li, W.Y. Fu, Y. F. Cheung, K.K.Y. Wong, Y. Wang, K.M. Lau, and H.W. Choi*
Monolithically integrated InGaN/GaN light-emitting diodes, photodetectors, and waveguides on Si substrate
Optica 5(5), 564-569 (2018).

(15) K.H. Li, X. Liu, Q. Wang, S. Zhao, and Z. Mi*
Ultralow-threshold electrically injected AlGaN nanowire ultraviolet lasers on Si operating at low temperature
Nature Nanotechnology 10(2), 140-144 (2015). (Featured in Semiconductor Today)