1. Joint International Research Laboratory of Information Display and Visualization School of Electronic Science and Engineering Southeast University Nanjing Jiangsu 211189 China
2. 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
3. Department of Electronics &Display Engineering Hoseo University Hoseo Ro 79 Asan city Chungnam 31499 Republic of Korea
4. E‐xray Electronic Co. Ltd. Suzhou 215131 China