1. Institute for Advanced Materials South China Academy of Advanced Optoelectronics South China Normal University Guangzhou 510006 China
2. Guangdong Provincial Key Laboratory of Optical Information Materials and Technology South China Academy of Advanced Optoelectronics South China Normal University Guangzhou 510006 China
3. Shanghai Institute of Applied Physics Chinese Academy of Sciences Shanghai 201204 China
4. National Center for International Research on Green Optoelectronics South China Normal University Guangzhou 510006 China
5. Laboratory of Solid State Microstructures and Innovation Center of Advanced Microstructures Nanjing University Nanjing 210093 China