1. School of Physical Science and Technology, MOE Key Laboratory on Luminescence and Real-Time Analysis, Southwest University, Chongqing 400715, China
2. School of Physics and Materials Science, Guangzhou University, Guangzhou 510006, China
3. Research Center for Advanced Information Materials (CAIM), Huangpu Research and Graduated School of Guangzhou University, Guangzhou 510006, China
4. Department of Education of Guangzhou Province, Key Lab of Si-Based Information Materials & Devices and Integrated Circuits Design, Guangzhou 510006, China