1. National & Local United Engineering Laboratory of Flat Panel Display Technology, Fuzhou University, Fuzhou 350108, P. R. China
2. Mindu Innovation Laboratory, Fujian Science & Technology Innovation Laboratory For Optoelectronic Information of China, Fuzhou, 350108, P. R. China
3. Department of Physics, School of Physics and Information Engineering, Fuzhou University, Fuzhou, P. R. China