A tunable yellow emission from three-band emission of singly doped single-phased phosphor BaY2S4:Ho3+

被引：4

作者：

Zhao Junfeng ^{[1
]}

Chen Xi ^{[1
]}

Rong Chunying ^{[2
]}

Yu Liping ^{[1
,2
]}

Lian Shixun ^{[1
,2
]}

机构：

[1] Hunan Normal Univ, Coll Chem & Chem Engn, Univ Hunan Prov, Key Lab Resource Fine Proc & Adv Mat, Changsha 410081, Hunan, Peoples R China

[2] Hunan Normal Univ, Minist Educ, Key Lab Chem Biol & Tradit Chinese Med Res, Changsha 410081, Hunan, Peoples R China

来源：

JOURNAL OF RARE EARTHS | 2011年 / 29卷 / 05期

基金：

中国国家自然科学基金;

关键词：

rare earths; BaY2S4:Ho3+; yellow emission; singly doped single-phased phosphor; LIGHT-EMITTING-DIODES; LUMINESCENT PROPERTIES; UP-CONVERSION; BLUE; GREEN;

D O I：

10.1016/S1002-0721(10)60475-9

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The establishment of an approach to design tunable yellow emission through singly doped single-phased phosphors to obtain white LED-based InGaN chip was reported. BaY2-xS4:xHo(3+) phosphors were prepared by the high temperature solid state reaction and characterized by X-ray diffraction and photoluminescence spectra. Under the excitation of 465 nm, the emission spectra of these phosphors exhibited three sharp emission lines peaked at about 492, 543 and 661 nm of Ho3+ corresponding to F-5(3), F-5(4) (S-5(2)) and F-5(5)-> I-5(8) transitions, respectively, with comparable intensities, resulting in a yellow light emission. The luminescence mechanism for Ho3+ in BaY2S4 was explained.

引用

页码：436 / 439

页数：4

共 16 条

[1] OPTICAL ABSORPTION INTENSITIES OF HO3+ IN YPO4 [J].