1. More Power Electronics Energy Systems, School of Electrical Engineering, Shandong University, Jinan 250014, People’s Republic of China
2. Institute of Crystallography and Structural Physics (ICSP) and Center for Nanoanalysis and Electron Microscopy (CENEM), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), IZNF, Cauerstr. 3, 91058 Erlangen, Germany
3. State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, People’s Republic of China