[1] Nguyen T D, Ehrenfreund E, Vardeny Z V. Science, 2012, 337(6091): 204.

[2] Sebastian R, Frank L, Gregor S, et al. Nature, 2009, 459: 234.

[3] Zhou Ying, Kim J W, Nandhakumar J, et al. Chem. Comm., 2010, 46: 6512.

[4] Holmes R J, Forrest S R, Tung Y J, et al. Appl. Phys. Lett., 2003, 82(15): 2422.

[5] Ma Zhu, Yu Junsheng, Li Lu, et al. Displays, 2012, 33(1): 42.

[6] Liu Shengqiang, Yu Junsheng, Ma Zhu, et al. J. of Luminescence, 2012, 134: 665.

[7] Vaeth K M, Tang C W. J. Appl. Phys., 2002, 92(7): 3447.

[8] Li Zhen, Dong Yongqiang, Lam J W Y, et al. Adv. Funct. Mater., 2009, 19(6): 905.

[9] Liu Jianzhao, Lam J W Y, Tang Benzhong. J. Inorg. Organomet. Polym. Mater., 2009, 19(3): 249.

[10] Dong Yongqiang, Lam J W Y, Qin Anjun, et al. Appl. Phys. Lett., 2007, 91(1): 011111.

[11] Chen Chihhsin, Huang Weisheng, Lai Meiyi, et al. Adv. Funct. Mater., 2009, 19(16): 2661.