1. Institute of Photoelectronic Thin Film Devices and Technology, Solar Energy Conversion Center, Nankai University, Tianjin300350, China
2. Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin, Tianjin300350, China
3. Engineering Research Center of Thin Film Photoelectronic Technology of Ministry of Education, Tianjin300350, China
4. Tianjin Key Laboratory of Molecular Optoelectronic, Department of Chemistry, Tianjin University, Tianjin300072, China
5. State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian116024, China
6. Frontiers Science Center for Flexible Electronics (FSCFE), MIIT Key Laboratory of Flexible Electronics (KLoFE), Shaanxi Institute of Flexible Electronics (SIFE), Institute of Flexible Electronics (IFE), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi’an710072, China