Title: Associate Professor
Tel: 010-81383361, 15010535024
Department: Condensed Matter Physics
E-mail: hengcl@bit.edu.cn
Address: Office 315B, Liangxiang Campus, Liangxiang Campus, School of Physics, Beijing Institute of Technology, No.5 Zhongguancun South Street, Haidian District, Beijing; Laboratory: Semiconductor Thin Film and Device Laboratory, Room B 108, Liangxiang Campus, Beijing Institute of Technology

Research fields: Preparation and photoelectric properties of rare earth doped nano-semiconductors; Preparation of two-dimensional materials with few layers and study of photoelectric properties; Photoelectric properties of silicon-based nano-semiconductor materials.
Main research interests:
1) Rare earth doping enhances the UV luminescence performance of oxide-semiconductor;
2) Rare earth doping enhances the photoelectric properties of two-dimensional materials with few layers;
3) Plasmon enhances the photoelectric performance of semiconductor film;
4) "rare earth ion pair" down-conversion luminescence modulation solar spectrum, improve the luminous efficiency of silicon-based solar cells;
5) Use graphene oxide and ZnO nanocrystals as drug carriers to study their applications in biology/medicine;
6) Preparation, luminescence and charge storage properties of silicon-based nanosemiconductors.

Sep. 1997 - Jun. 2000 Ph.D., Department of Physics, Peking University
Sep. 1994 - Jun. 1997 Master of Physical Science and Technology College, Soochow University, Jiangsu Province
Sep. 1990 - Jun. 1994 Bachelor of Physics, Soochow University, Jiangsu Province

September 2017 - Now Associate Professor, School of Physics, Beijing Institute of Technology
December 2008 - August 2017 Lecturer, School of Science (now School of Physics), Beijing Institute of Technology
February 2006 - April 2008 Postdoctoral Fellow, Department of Engineering Physics, McMaster University, Canada
March 2003 - July 2005 Postdoctoral Fellow, Department of Physics, University of Oslo, Norway
September 2000 - September 2002 Postdoctoral Fellow of Singapore-MIT Alliance (Department of Electrical Engineering, National University of Singapore), 2001 Research Fellow

"Research achievements, including publication of papers and project leadership:
1. The first observation of rare earth doped zinc oxide thin films showed an order of magnitude increase in ultraviolet luminescence after high-temperature annealing. The results were published in journals such as Optics Express, Results in Physics, Materials Letters, Journal of Alloy&Compounds, Journal of Luminescence, and Optical Materials Express. In 2017, they were approved for funding by the National Natural Science Foundation of China< br> 2. The charge storage performance of germanium (Ge) containing nanocrystalline MIS structures was first reported and published in Applied Physics Letter (APL), with 143 and 56 citations respectively< br> 3. The resonance luminescence performance of Ge nanocrystals and rare earth erbium ions was studied for the first time, and the results were rated as "excellent" by APL reviewers and cited 38 times< br> 4. Collaborated with researcher Yang Rong from the National Nanocenter to study the application of graphene oxide and functionalized zinc oxide nanocrystals in biomedical fields. The results have been published in PCCP and the Journal of Physical Chemistry, with 22 and 21 citations respectively< br> 5. Ge nanocrystals were prepared by electron beam evaporation coating and rapid annealing, and the formation mechanism and charge storage properties of Ge nanocrystals Spinodal were proposed. The results were cited a total of 42 times; Propose the formation mechanism of nano silicon particles in silicon rich silica, and the article has been cited 26 times in JCG< br>
Research funds include: National Natural Science Foundation of China (General), Ministry of Education Scholarship Fund for Returning to China, Ministry of Education Doctoral Program New Teacher Fund, School Basic Research Fund, etc< br>
So far, nearly 60 scientific research papers have been published in domestic and foreign journals, obtaining an international invention patent, and serving as reviewers for multiple domestic and foreign academic journals.