Luminescence investigation of red phosphors Ca0.54Sr0.34-1.5xEu0.08Smx(MoO4)y (WO4)1-y for UV-white LED device

被引：66
作者：
Cao, Fa-bin [1 ,2 ]
Tian, Yan-wen [1 ]
Chen, Yong-jie [2 ]
Xiao, Lin-jiu [2 ]
Wu, Qian [2 ]
机构：
[1] Northeastern Univ, Sch Met & Mat, Shenyang 110004, Peoples R China
[2] Shenyang Inst Chem Technol, Shenyang 110142, Peoples R China
来源：
JOURNAL OF LUMINESCENCE | 2009年 / 129卷 / 06期
关键词：
Ca0.54Sr0.34-1.5xEu0.08Smx(MoO4)(y)(WO4)(1-y); LED; Red emitting phosphors; Charge compensator; LIGHT-EMITTING-DIODES; MOLYBDATE;
D O I：
10.1016/j.jlumin.2008.11.024
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Ca0.54Sr0.34-1.5 xEu0.08Smx(MoO4)(y) (WO4)(1-y) red phosphors were prepared by solid-state reaction using Na+ as a charge compensator for light-emitting diodes (LED). The effects of Na+ concentration, synthesis temperature, reaction time and Eu3+ concentration were studied for the properties of luminescence and crystal structure of red phosphors. The results show that the optimum reaction condition is 6%, 900 degrees C, 2 h and 8%. The photoluminescence spectra show that red phosphors are effectively excited at 616 nm by 292, 395 and 465 nm. The wavelengths of 465 nm nicely match the widely applied emission wavelengths of blue LED chips.
引用
收藏
页码：585 / 588
页数：4
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