1. College of Materials Science and Engineering Engineering Research Center of Alternative Energy Materials & Devices Ministry of Education Sichuan University Chengdu Sichuan 610065 China
2. Laboratory for Thin Films and Photovoltaics Empa–Swiss Federal Laboratories for Materials Science and Technology Ueberlandstrasse 129 Duebendorf CH‐8600 Switzerland
3. Institute of New Energy and Low‐Carbon Technology Sichuan University Chengdu Sichuan 610065 China
4. Key Laboratory of Material Physics Ministry of Education School of Physics and Microelectronics Zhengzhou University Zhengzhou Henan 450052 China
5. Institute of Microtechnology (IMT) and Center of Pharmaceutical Engineering (PVZ) Technische Universität Braunschweig 38124 Braunschweig Germany
6. School of Optoelectronic Science and Engineering & Collaborative Innovation Center of Suzhou Nano Science and Technology Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province & Key Lab of Modern Optical Technologies of Education Ministry of China Soochow University Suzhou 215006 China