[1] [1] Wang T., Zheng P., Liu X., Chen H., Bian L. and Liu Q. L., J. Lumin. 47, 173 (2014).

[2] [2] Chen W.-T., Sheu H.-S., Liu R.-S. and Attfield J. P., J. Am. Chem. Soc. 134, 8022 (2012).

[3] [3] Tian Hua, Song Jun, Lu Qi-fei and Wang Da-jian, Optoelectronics Letters 8, 352 (2012).

[4] [4] Li Jian, Deng Jia-chun, Lu Qi-fei and Wang Da-jian, Optoelectronics Letters 9, 293 (2013).

[5] [5] Yadav R. S., Shukla V. K., Mishra P., Pandey S. K., Kumar K., Baranwal V., Kumar M. and Pandey A. C., J. Alloys Compd. 547, 1 (2013).

[6] [6] Pang Li-bin, Gao Shao-jie, Gao Zhan-jun, Li Hong-lian and Wang Zhi-jun, Optoelectronics Letters 9, 282 (2013).

[7] [7] Kuo T. W. and Chen T. M., J. Electrochem. Soc. 157, J216 (2010).

[8] [8] Guo N., Lü W., Jia Y., Lv W. and Zhao Q., Physical Chemistry Chemical Physics 14, 192 (2013).

[9] [9] Jia Y., Lü W., Guo N., Lü W., Zhao Q. and You H., Physical Chemistry Chemical Physics 15, 6057 (2013).

[10] [10] Sun J., Sun Y., Zeng J. and Du H., Opt. Mater. 35, 1276 (2013).

[11] [11] Guo N., Huang Y., Yang M., Song Y., Zheng Y. and You H., Physical Chemistry Chemical Physics 13, 15077 (2011).

[12] [12] Shannon R. D., Acta Cryst. A32, 751 (1976).

[13] [13] Van Uitert L. G., J. Lumin. 29, 1 (1984).

[14] [14] Van Uitert L. G., J. Electrochem. Soc. 114, 1048 (1967).

[15] [15] Blasse G., Philips Res. Rep. 24, 131 (1969).