1. College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, P. R. China
2. Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P. R. China
3. School of Chemistry and Chemical Engineering, Shanghai Jiaotong University, Shanghai 200240, P. R. China
4. School of Pharmaceutical Science (Shenzhen), Sun Yat-sen University, Guangzhou 510275, P. R. China