[1] [1] Sun J, Zhang X, Xia Z, et al. J. Appl. Phys., 2012, 111: 013101.

[2] [2] Li G, Geng D, Shang M, et al. J. Phys. Chem. C, 2011, 115: 21882.

[3] [3] Brinkley S E, Pfaff N, Denault K A, et al. Appl. Phys. Lett., 2011, 99: 241106.

[4] [4] Huang C H, Chen T M. Inorg. Chem. 2011, 50: 5725.

[5] [5] Hao Z, Zhang X, Wang X, et al. Mater. Lett., 2012, 68: 443.

[6] [6] Zhang X, Zhang J, Dong Z, et al. J. Lumin., 2012, 132: 914.

[7] [7] Zhang X, Lu Z, Meng F, et al. Mater. Lett., 2011, 66: 16.

[8] [8] Li P, Wang Z, Yang Z, et al. J. Electrochem. Soc., 2011, 158 (12): H1201.

[9] [9] Li G, Zhang Y, Geng D, et al. ACS Appl. Mater. Interfaces, 2012, 4: 296.

[10] [10] Liu W R, Huang C H, Wu C P, et al. J. Mater. Chem., 2011, 21: 6869.

[11] [11] Liu J, Lian H, Shi C, et al. J. Electrochem. Soc., 2005, 152(11): G880.

[12] [12] Karkada N, Porob D, Kumar N P, et al. ECS Transactions, 2011, 33(33): 39.

[13] [13] Zhuang J, Xia Z, Liu H, et al. Appl. Sur. Sci., 2011, 257: 4350.

[14] [14] Lü W, Hao Z, Zhang X, et al. Opt. Mater., 2011, 33: 1262.

[15] [15] Lü W, Hao Z, Zhang X, et al. Opt. Mater., 2011, 34: 261.

[16] [16] Lü W, Hao Z, Zhang X, et al. J. Lumin., 2011, 131: 2387.

[17] [17] Guo C, Li M, Xu Y, et al. Appl. Sur. Sci., 2011, 257: 8836.

[18] [18] Zhu G, Wang Y, Ci Z, et al. J. Lumin., 2012, 132: 531.

[19] [19] Zhang S, Hu J, Wang J, et al. Mater. Lett., 2010, 64: 1376.

[21] [21] Lim M A, Park J K, Kim C H, et al. J. Mater. Sci. Lett., 2003, 22: 1351.