Photoluminescence and energy transfer properties of Ca2SiO4:Ce3+, Sm3+

被引：0
作者：
Lin, Jian [1 ,2 ]
Hao, Zhen-Dong [1 ]
Zhang, Xia [1 ]
Zhang, Jia-Hua [1 ]
机构：
[1] Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences
[2] University of Chinese Academy of Sciences
来源：
Faguang Xuebao/Chinese Journal of Luminescence | 2013年 / 34卷 / 08期
关键词：
Ca[!sub]2[!/sub]SiO[!sub]4[!/sub; Energy transfer; Inokuti-Hirayama formula; Phosphors;
D O I：
10.3788/fgxb20133408.0953
中图分类号：
学科分类号：
摘要：
A series of Ca2SiO4:0.01Ce3+, xSm3+, (0.01+x)Li+ (x=0~0.05) phosphors were synthesized under a weak reducing atmosphere by traditional solid state reactions. Photoluminescence and energy transfer (ET) properties were investigated in detail. When the mole fraction of Ce3+ was fixed at 1%, the sample of Ca2SiO4:0.01Ce3+, 0.02Sm3+, 0.03Li+ shows the highest red light emitting. Under 360 nm UV excitation, efficient Ce3+ to Sm3+ energy transfer was observed. The highest ET efficiency of Ce3+-Sm3+ is 55.8%. Based on Inokuti-Hirayama formula, the ET type of Ce3+ to Sm3+ was supposed to be dipole-dipole interaction. The critical distance of Ce3+ to Sm3+ was calculated to be about 0.55 nm.
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页码：953 / 958
页数：5
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