Manuscript received July 11, 2020; revised August 10, 2020; accepted August 12, 2020. Date of publication August 31, 2020; date of current version September 22, 2020. This work was supported in part by the National Natural Science Foundation of China under Grant 61404011 and Grant 11674039, in part by the Key Projects of Changsha Science and Technology Plan under Grant kq1901102, in part by the Scientific Research Fund of Hunan Provincial Education Department under Grant 17B007 and Grant 18B157, and in part by the Open Research Fund of Hunan Provincial Key Laboratory of Flexible Electronic Materials Genome Engineering under Grant 201904 and Grant 201906. The review of this article was arranged by Editor T. Kimoto. (Corresponding author: Zhi-Qiang Fan.) Hai-Qing Xie and Zhi-Qiang Fan are with the Hunan Provincial Key Laboratory of Flexible Electronic Materials Genome Engineering, School of Physics and Electronic Science, Changsha University of Science and Technology, Changsha 410114, China (e-mail: xiehq@csust.edu.cn; zqfan@csust.edu.cn).
