1. Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, China
2. Department of Physics, Jilin University, Changchun 130023, China
3. Center on Nano-energy Research, School of Physical Science and Technology, and Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University, Nanning 530004, China
4. Suzhou Xingshuo Nanotech Co., Ltd. (Mesolight), Suzhou 215123, China