1. College of Physics and Information EngineeringInstitute of Micro-Nano Devices and Solar CellsFuzhou University Fuzhou 350108 P. R. China
2. Key Laboratory of Green Perovskites Application of Fujian Province UniversitiesFujian Jiangxia University Fuzhou 350108 P. R. China
3. Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering Changzhou 213164 P. R. China
4. Key Laboratory for Special Functional Materials of MOECollaborative Innovation Center of Nano Functional Materials and ApplicationsHenan University Kaifeng 475004 P. R. China