[3] [3] Clabau F, Garcia A, Bonville P, et al. Solid State Chem., 2008, 181(6): 1456.

[4] [4] Setlur A A. Electrochemical and Solid-State Letters, 2012, 15(6): 21.

[5] [5] Graeve O A, Kanakala R, Madadi A, et al. Biomaterials, 2010, 31(15): 4259.

[6] [6] Zhu C F, Yang Y X, Liang X L, et al. Journal of Luminescence, 2007, 126(2): 707.

[8] [8] Parc R L, Champagnon B, Dianoux J, et al . Journal of Non-Crystalline Solids, 2003, 323(1-3): 155.

[10] [10] Qiao Y P. Acta Physico-Chimica Sinica, 2012, 28(3): 706.

[11] [11] Yu Y, Liu Z, Dai N, et al. Optics Express, 2011, 19(20): 1473.

[12] [12] Dai W B. Journal of Materials Chemistry C, 2014, 2(20): 3951.

[13] [13] Jung K Y, Kim J H. Journal of Luminescence, 2008, 128(12): 2004.