Wang, Sheng

Associate Professor

Research Interests: Nanoelectronics, optoelectronics

Office Phone: 86-10-6275 5827

Email: shengwang@pku.edu.cn

Wang, Sheng is an Associate professor in the Department of Electronics, School of EECS. He obtained his B.Sc. from University of Science & Technology, Beijing in 1999, M.Sc. and Ph.D. from Peking University in 2002 and 2006 respectively. His research interests include carbon nanotube (CNT) based nanoelectronics and optoelectronics.

Dr. Wang has published more than 80 research papers, such as Nature Photonics, Nature Communication, Nano Letters, and Advanced Materials, cited more than 1900 times, H factor 26. He was awarded program for “New Century Excellent Talents in University of Ministry of Education of China” (2012), the first prize of “Natural Science of Ministry of Education Award” (2013), and “The State Natural Science Award” (2nd Prize) of China in 2016.

Dr. Wang has more than 10 research projects including NSFC, 973 programs, etc. His research achievements are summarized as follows:

1) CNT based infrared (IR) light emitter: We construct a new type CNT diode named barrier-free bipolar diode (BFBD) with Pd-Sc asymmetric contacts which is published at Adv. Mater. 20, 3258(2008). Then we demonstrated that the BFBD is true two-terminal LED with high injection efficiency for both holes and electrons. Nano Lett. 11, 23 (2011) and Small 10, 1050(2013).

2) Photovoltage multiplication in CNT: The photovoltage of a single-walled semiconducting CNT were multiplied by using virtual contacts. With four virtual contacts, an output signal larger than 1.0V was generated from a 10 μm-long CNT, where each single-cell generated a photovoltage of 0.2 V. Nat. Photonics 5, 672(2011).

3) CNT based infrared detector: CNT photovoltaic IR photodetector is developed based the BFBD. The device structure is very simple, involves doping-free fabrication process, and fast IR response which has been used to construct room-temperature IR photodetectors and imagers based on CNT films. Opt. Mater. Express, 2, 839(2012); Small 9, 1225(2013)；Appl. Phys. Lett. 105,073107 (2014); Nanoscale, 7, 6805 (2015); Adv. Opt. Mater. 4, 238(2016); ACS Nano 10, 6963(2016); ACS Nano 11, 549(2017).