1. Department of Electrical and Electronic Engineering Southern University of Science and Technology Shenzhen 518055 P. R. China
2. Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM) Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) Nanjing Tech University (Nanjing Tech) 30 South Puzhu Road Nanjing 211816 P. R. China
3. Key Laboratory of Low‐Dimensional Quantum Structures and Quantum Control of Ministry of Education and Key Laboratory for Matter Microstructure and Function of Hunan Province Hunan Normal University Changsha 410081 P. R. China
4. SEU‐FEI Nano‐Pico Center Key Laboratory of MEMS of Ministry of Education Collaborative Innovation Center for Micro/Nano Fabrication Device and System Southeast University Nanjing 210096 P. R. China
5. School of Materials Science and Engineering Nanyang Technological University Singapore 639798 Singapore
6. Frontiers Science Center for Flexible Electronics (FSCFE) Shaanxi Institute of Flexible Electronics (SIFE) and Shaanxi Institute of Biomedical Materials and Engineering (SIBME) Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 P. R. China
7. State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM) Nanjing University of Posts and Telecommunications 9 Wenyuan Road Nanjing 210023 P. R. China
8. Department of Materials Science and Engineering Southern University of Science and Technology Shenzhen 518055 P. R. China