1. State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, People’s Republic of China, State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, People’s Republic of China, and Center for Advanced Optoelectronic Functional Material Research, Northeast Normal University, Changchun 130024, People’s Republic of China