Jun Wang

2D Materials

University of Electronic Science and Technology of China, Chengdu, China

Email: wjun@uestc.edu.cn

Biography

   Prof. Dr. WANG Jun is from School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu, China. He received his BSc degree and PhD degree of Optical Engineering from UESTC. Prof. Wang’s research activities are focused on infrared and terahertz detector technology at room temperature, presided more than 10 projects: frontier innovation projects of the Science and Technology Commission, "863" project, NSFC, etc. Prof. Wang has published more than 100 papers indexed by SCI in academic journals including Advanced Materials, Light: Science & Applications, ACS Nano, Infomat, Advanced Functional Materials, etc., and applied over 80 item patents of invention in China. He has won three second prizes of national technology invention, national defense technology invention and education university technology invention, and got National Natural Science Foundation-Outstanding Youth Foundation and Education Ministry's New Century Excellent Talents Supporting Plan.

Abstract for Presentation

Enhancing graphene detector performance at near infrared region with organic heterojunction

   Graphene indicates promising potential in fabricating phototransistor and photodetector due to its unique band structure with prominent optoelectronic and charge transportation properties. However, inferior light absorption rate of single atomic layer graphene limits photodetector performance. The graphene/ semiconductor heterojunction is an effective strategy to break the intrinsic limit absorption of graphene and enhance phototransistor performance including Quantum dots enhanced structure, stacked graphene heterojunction structure, graphene planar structure, dual photogating phototransistor, waveguide-integrated enhanced and bilayer enhanced structure. In this report, we introduced several methods to enhance detection performance of graphene detector at near infrared region using organic heterojunction structure. High device detectivity, fast response speed, and multi-function adjusting graphene devices were obtained with the graphene/organic heterojunction structure[1-4].

References

[1] J. Han, J. Wang*, M. Yang, X. Kong, X. Chen, Z. Huang, H. Guo, J.n Gou, S. Tao, Z. Liu, Z. Wu, Y. Jiang, and X. Wang*, Advanced Materials, 30(2018) 1804020
[2] Z. He, J. Han,* X. Du,* L. Cao, J. Wang,* C. Zheng, H. Lin, and S. Tao*, Advanced Functional Materials, 31(2021) 2103988
[3] X. Du, J. Han, Z. He, C. Han, X. Wang, J. Wang*, Y. Jiang, S. Tao*, Advanced Materials, 33(2021) 2102812
[4] J. Han, M. He, M. Yang, Q. Han, F. Wang, F. Zhong, M. Xu, Q. Li, H. Zhu, C. Shan, W. Hu*, X. Chen, X. Wang*, J. Gou, Z. Wu & J. Wang*, Light: Science & Applications, 9 (2020) 167