1. Beijing National Research Center for Information Science and Technology (BNRist), Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
2. Center for Flexible Electronics Technology, Tsinghua University, Beijing 100084, China
3. Université Côte d’Azur, CNRS-CRHEA, Centre de Recherche sur L’Hétéro-Epitaxie et ses Applications, Centre National de la Recherche Scientifique, Valbonne 06560, France