1. Michael Grätzel Center for Mesoscopic Solar Cells Wuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology Wuhan Hubei 430074 China
2. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan Hubei 430070 China
3. State Key Laboratory of Multi‐phase Complex Systems Institute of Process Engineering Chinese Academy of Sciences Beijing 100190 China
4. Shanghai Synchrotron Radiation Facility (SSRF) Zhangjiang Lab Shanghai Advanced Research Institute Chinese Academy of Sciences 239 Zhangheng Road Shanghai 201204 China