Henan Key Laboratory of Photovoltaic Materials School of Physics and Electronics Henan University Kaifeng 475004 China;
Henan Key Laboratory of Photovoltaic Materials School of Physics and Electronics Henan University Kaifeng 475004 China;
Henan Key Laboratory of Photovoltaic Materials School of Physics and Electronics Henan University Kaifeng 475004 China;
School of Physical Engineering Zhengzhou University Zhengzhou 450001 China;
School of Physical Engineering Zhengzhou University Zhengzhou 450001 China;
Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100190 China;
Henan Key Laboratory of Photovoltaic Materials School of Physics and Electronics Henan University Kaifeng 475004 China;
Henan Key Laboratory of Photovoltaic Materials School of Physics and Electronics Henan University Kaifeng 475004 China;
Shanghai Synchrotron Radiation Facility(SSRF) Shanghai Institute of Applied Physics Chinese Academy of Sciences Shanghai 201204 China;
Shanghai Synchrotron Radiation Facility(SSRF) Shanghai Institute of Applied Physics Chinese Academy of Sciences Shanghai 201204 China;
Henan Key Laboratory of Photovoltaic Materials School of Physics and Electronics Henan University Kaifeng 475004 China;
Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100190 China;