1. Institute for Clean Energy and Advanced Materials, School of Materials and Energy, Southwest University, Chongqing, 400715, China
2. Center for Advanced Thin Films and Devices, School of Materials and Energy, Southwest University, Chongqing, 40075, China
3. College of Materials Science and Engineering, Sichuan University, Chengdu, 610064, China
4. School of Physics and Electronic Science, Zunyi Normal College, Zunyi 563002, China