1. School of Physics and Laboratory of Zhongyuan Light, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
2. Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Catalonia, Spain
3. Henan Province Key Laboratory of Photovoltaic Materials, School of Future Technology, Henan University, Kaifeng 475004, People’s Republic of China
4. Anhui Province Engineering Research Center of Flexible and Intelligent Materials, School of Chemistry and Chemical Engineering, Hefei University of Technology, 230009 Hefei, People’s Republic of China
5. ICREA, Pg. Lluís Companys 23, 08010 Barcelona, Catalonia, Spain
6. Catalonia Institute for Energy Research-IREC, Sant Adrià de Besòs, 08930 Barcelona, Spain