1. Department
of Electrical and Electronic Engineering, Southern University of Science and Technology, No. 1088, Xueyuan Road, Xili, Nanshan District, Shenzhen, Guangdong 518055, People’s Republic of China
2. School
of Physics, Nankai University, Tianjin 300071, People’s Republic of China
3. State
Key Laboratory on Advanced Displays and Optoelectronics Technologies,
Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, People’s Republic of China
4. State Scientific
Institution “Institute for Single Crystals”, Lenin Avenue, 60, Kharkov 61001, Ukraine