1. State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology, Shaanxi Joint Key Laboratory of Graphene School of Microelectronics, Xidian University Xi'an China
2. Advanced Interdisciplinary Research Center for Flexible Electronics Xidian University Xi'an China
3. Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology Institute for Advanced Energy Materials, School of Materials Science and Engineering, Shaanxi Normal University Xi'an China
4. Department of Materials Science and Engineering National University of Singapore Singapore Singapore