[1] Geusic J E, Marcos H M, Van Uitert L G. Appl. Phys. Lett., 1964, 4(10): 182.

[2] Steranka F M, Bhat J, Collins D, et al. Phys. Status Solidi A, 2002, 194(2): 380.

[3] Zych E, Brecher C. J. Lumi., 2000, 90(3/4): 89.

[4] Yanagida T, Takahashi H, Ito T, et al. IEEE T. Nucl. Sci., 2005, 52(5): 1836.

[6] Nishiura S, Tanabe S, Fujioka K, et al. Opt. Mater., 2011, 33(5): 688.

[7] Owen J F, Dorain P B, Kobayasi T. J. Appl. Phys., 1981, 52(3): 1216.

[8] Zych E, Brecher C. J. Alloys Compd., 2000, 300: 495.

[9] Zych E, Brecher C, Glodo J. J. Phys.: Condens. Matter, 2000, 12(8): 1947.

[10] Weber M J. Solid State Commun., 1973, 12(7): 741.

[11] Raukas M, Basun S A, Schaik W V, et al. Appl. Phys. Lett., 1996, 69(22): 3300.

[12] Blasse G, Grabmaier B C. Luminescent Materials. Berlin: Springer-Verlag, 1994. 45.

[14] Blasse G, Bril A. Appl. Phys. Lett., 1967, 11(2): 53.

[15] Lakshminarasimhan N, Varadaraju U V. J. Electrochem. Soc., 2005, 152(9): 152.

[18] Pang R, Li C Y, Shi L L, et al. J. Phys. Chem. Solids, 2009, 70(2): 303.

[19] Zhang K, Liu Q, Liu Q, et al. J. Comb. Chem., 2010, 12(4): 453.

[20] Furman J D, Gundiah G, Page K, et al. Chem. Phys. Lett., 2008,465(1/3): 67.