1. State Key Laboratory of Luminescence and ApplicationsChangchun Institute of OpticsFine Mechanics and PhysicsChinese Academy of Sciences 3888 Eastern South Lake Road Changchun 130033 China
2. Center of Materials Science and Optoelectronics EngineeringUniversity of Chinese Academy of Sciences Beijing 100049 China
3. Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of EducationJilin Normal University Siping 136000 China