1. Semiconductor
Lighting Technology Research and Development Center, Institute of
Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
2. Mind Star (Beijing) Technology Co., Ltd., Zhongguancun South Street, Haidian District, No. 45 Hing Fat Building
1001, Beijing 100872, China
3. Department of Electrical and Computer Engineering, John Hopkins University, Baltimore, Maryland 21218, United States
4. School of Materials Science and Engineering, State Key Lab of New Ceramic & Fine Processing, Tsinghua University, Beijing 100084, China