1. School of Chemistry and Materials Engineering Huaihua University Huaihua P. R. China
2. State Key Laboratory of Luminescent Materials and Devices and Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques South China University of Technology Guangzhou P. R. China
3. Department of Material Chemistry Graduate School of Engineering Kyoto University Nishikyo‐ku Kyoto Japan
4. Institute for Chemical Research Kyoto University Uji Kyoto Japan
5. College of Optical Science and Engineering Zhejiang University Hangzhou P. R. China