[1] [1] Tang C W, VanSlyke S A. Applied Physics Letters, 1987, 51(12): 913.

[2] [2] Luo Y, Aziz H. Applied Physics Letters, 2009, 95(7): 073304.

[3] [3] Luo Y, Aziz H, Xu G, et al. Chemistry of Materials, 2007, 19(8): 2079.

[4] [4] Klenkler R A, Xu G, Aziz H, et al. Applied Physics Letters, 2006, 88(24): 242101.

[5] [5] Popovic Z D, Aziz H.Journal of Applied Physics, 2005, 98(1): 013510.

[6] [6] Gan Z, Liu R, Shinar R, et al. Applied Physics Letters, 2010, 97(11): 113301.

[7] [7] Luo Y, Aziz H. Advanced Functional Materials, 2010, 20(8): 1285.

[8] [8] Mu H, Reddy I, Hunt J, et al. Journal of Physics D: Applied Physics, 2010, 43(19): 195103.

[9] [9] Youn Jun Ho, II Lee Yeon, Moon Hie Tae, et al. Journal of the Korean Physical Society, 2009, 55(3): 1111.

[10] [10] Liu R, Gan Z, Shinar R, et al. Physical Review B, 2011, 83(24): 245302.

[11] [11] Weichsel C, Burtone L, Reineke S, et al. Physical Review B, 2012, 86(7): 075204.

[12] [12] Xiao L, Chen Z, Qu B, et al. Adv. Mater., 2011, 23(8): 926.

[13] [13] Minaev B, Baryshnikov G, Agren H. Physical Chemistry Chemical Physcics, 2014, 16(5): 1719.