1. Joint International Research Laboratory of Information Display and Visualization, School of Electronic Science and Engineering, Southeast University, Nanjing, China
2. School of Electronic and Information Engineering, Nanjing University of Information Science & Technology, Nanjing, China
3. Department of Electronics & Display Engineering, Hoseo University, Hoseo Ro 79, Asan City, Chungnam 31499, Republic of Korea
4. Department of Chemistry, School of Mathematics and Physical Sciences, Faculty of Natural and Agricultural Sciences, North-West University, Mafikeng Campus, Private Bag X2046, Mmabatho 2735, South Africa