BI, Wengang

Professor

Academician of the Ukrainian Academy of Engineering Sciences, Optica Fellow, SPIE Fellow
Education Background

PhD (University of California, San Diego)

MEng (Shanghai Institute of Microsystem and Information Technology, CAS)

BS (Jilin University)

Research Field
The third-generation semiconductor materials and devices, quantum dots nano materials, Micro-LED displays
Academic Area
Physics, Electrical Engineering, Materials
Email
waynebi@cuhk.edu.cn
Biography

Prof. Wengang Bi received his PhD from University of California, San Diego, Department of Electrical and Computer Engineering in 1997. After devoting his career on forefront research and development at Hewlett Packard Laboratories, Agilent Technologies Inc., Philips-Lumileds, and Intel, Prof. Bi currently works at the Chinese University of Hong Kong, Shenzhen, as a professor. He has more than 20 years of R&D experience on cutting-edge opto-electronic and photonic materials and devices (DFB lasers, EML, Micro-LEDs, etc.) by MBE, MOCVD and chip processing for AR, VR, VLC applications as well as next-generation 400G/800G Silicon Photonics Technology and Product. PI of a number of large-scale academic research and industrial projects and published more than 140 peer reviewed journal papers. Lead editor of “Handbook of GaN Semiconductor Materials and Devices”, published by Taylor and Francis.

He is an elected Fellow of Optica (formally OSA), Fellow of SPIE, and Academician of the Ukrainian Academy of Engineering Sciences.

His current research interests include third-generation semiconductor materials and devices, colloidal quantum dots, Micro-LEDs and their applications to solid-state lighting and next-generation displays.

Academic Publications
  1. Feifan Xu, Guobin Wang, Tao Tao, Zhe Zhuang, Qi-Ang Yan, Ting Zhi, Zili Xie, Bin Liu, Wengang Bi, Ke Xu, and Rong Zhang “Optimized InGaN/GaN Quantum Structure for High-Efficiency Micro-LEDs Displays With Low Current Injection”, IEEE Transactions on Electron Devices 70 (8), 4257-4263 (2023).
  2. Xinyi Shan, Guobin Wang, Shijie Zhu, Pengjiang Qiu, Runze Lin, Zhou Wang, ZexingYuan, Qi-ang Yan, Xugao Cui, Jianfeng Wang, Wengang Bi, RanLiu, Ke Xu, and Pengfei Tian, “Comparison of Beyond 1 GHz C-Plane Freestanding and Sapphire-Substrate GaN-Based micro-LEDs for High-Speed Visible Light Communication”, J. of Lightwave Technology 41 (5), 1480 - 1486 (2023).
  3. Xin Chen, Zhong Yaozong, Yu Zhou, Shuai Su, Shumeng Yan, Huge Guo, Gao Hongwei, Xiaoning Zhan, Sihua Ouyang, Zihui Zhang, Wengang Bi, Qian Sun, Hui Yang, “Influence of the Carrier Behaviors in p-GaN Gate on the Threshold Voltage Instability in the Normally Off High Electron Mobility Transistor”, Appl. Phys. Lett.,119(6), 063501 (2021).
  4. Heng Gao, Yangyang Xie, Chong Geng, Shu Xu, Wengang Bi, “Efficiency Enhancement of Quantum-Dot-Converted LEDs by 0D–2D Hybrid Scatterers,” ACS Photonics 7(12), 3430–3439 (2020).
  5. Ruiting Fan, Song Li, Yongsheng Hu, Xiaoyang Guo, Xingyuan Liu, Lishuang Wang, Chong Geng, Shu Xu, Yonghui Zhang, Zi-Hui Zhang, Nannan Luan, and Wengang Bi, “Boosting the Efficiency and Stability of Perovskite Light-Emitting Devices by 3-Amino-1-propanol Tailored PEDOT:PSS Hole Transport Layer,” ACS Appl. Mater. Interfaces, 12(38), 43331-43338 (2020).
  6. Kuifeng Jia, Song Li, Yongsheng Hu, Xiaoyang Guo, Xingyuan Liu, Chong Geng, Shu Xu, Ruiting Fan, Lixin Huang, Nannan Luan, and Wengang Bi, “Improved Performance for Thermally Evaporated Perovskite Light-Emitting Devices via Defect Passivation and Carrier Regulation,” ACS Appl. Mater. Interfaces, 12(13), 15928-15933 (2020).
  7. Chun Sun, Zhiyuan Gao, Yuchen Deng, Hanxin Liu, Le Wang, Sijing Su, Peng Li, Huanrong Li, Zi-Hui Zhang, and Wengang Bi, “Orange to Red, Emission-Tunable Mn-Doped Two-Dimensional Perovskites with High Luminescence and Stability,” ACS Appl. Mater. Interfaces 11(37), 34109-34116 (2019).  
  8. Lirong Wu, Lingchao Xie, Hanmin Tian, Ruixiang Peng, Jiaming Huang, Billy Fanady, Wei Song, Songting Tan, Wengang Bi and Ziyi Ge, “Efficient Ternary Organic Solar Cells Based on a Twin Spiro-type Non-fullerene Acceptor,” Science Bulletin 64(15), 1087-1094 (2019).
  9. Chun Sun, Zhiyuan Gao, Hanxin Liu, Le Wang, Yuchen Deng, Peng Li, Huanrong Li, Zi-Hui Zhang, Chao Fan, and Wengang Bi, “One Stone, Two Birds: High-Efficiency Blue-Emitting Perovskite Nanocrystals for LED and Security Ink Applications,” Chem. Mater. 31(14), 5116-5123 (2019).
  10. Weishuo Xing, Xinsu Zhang, Chong Geng, Yangyang Xie, Yucheng Deng, Peng Li, Huanrong Li, Shu Xu, and Wengang Bi, “Multi-Quantum-Well Quantum Dots with Stable Dual Emission,” Nanoscale 11(17), 8475-8484 (2019).