New NaSrPO4:Sm3+ phosphor as orange-red emitting material

被引：0
作者：
KUN-HSIEN CHEN
MIN-HANG WENG
RU-YUAN YANG
CHENG-TANG PAN
机构：
[1] National Sun Yat-Sen University,Department of Mechanical and Electro
[2] National Pingtung University of Science and Technology,Mechanical Engineering
来源：
Bulletin of Materials Science | 2016年 / 39卷
关键词：
Phosphors; temperature; conventional solid-state sintering; luminescence;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Sm3+-activated NaSrPO4 phosphors could be efficiently excited at 403 nm, and exhibited a bright red emission mainly including four wavelength peaks of 565, 600, 646 and 710 nm. The highest emission intensity was found for NaSr1−xPO4: xSm3+ with a composition of x = 0.007. Concentration quenching was observed as the composition of x exceeds 0.007. The decay time values of NaSr1−xPO4: xSm3+ phosphors range from around 2.55 to 3.49 ms. NaSr1−xPO4: xSm3+ phosphor shows a higher thermally stable luminescence and its thermal quenching temperature T50 was found to be 350°C, which is higher than that of commercial YAG:Ce3+ phosphor and ZnS:(Al, Ag) phosphor. Because NaSr1−xPO4: xSm3+ phosphor features a high colour-rendering index and chemical stability, it is potentially useful as a new scintillation material for white light-emitting diodes.
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页码：1171 / 1176
页数：5
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