Effect of Yb3+ concentration on upconversion luminescence of AlON:Er3+ phosphors

被引：13

作者：

Su Mingyi ^{[1
,2
]}

Zhou Youfu ^{[1
]}

Wang Kun ^{[1
,2
]}

Huang Decai ^{[1
]}

Xu Wentao ^{[1
]}

Cao Yongge ^{[1
]}

机构：

[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350002, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100039, Peoples R China

来源：

JOURNAL OF RARE EARTHS | 2015年 / 33卷 / 03期

基金：

中国国家自然科学基金;

关键词：

AlON; phosphor; upconversion luminescence; energy transfer; rare earths; LANTHANIDE;

D O I：

10.1016/S1002-0721(14)60407-5

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

AlON:1.6 mol.% Er3+, x mol.% Yb3+ (x = 0, 2.6, 3.1, 3.6, 4.1, 4.6) phosphors were synthesized successfully by aluminothermic reduction and nitridation (ATRN) method and characterized by X-ray diffraction (XRD), scanning electron microscopy (FESEM) and upconversion photoluminescence (UCPL) emission spectra. Under the excitation of diode laser 980 nm, the green (556 nm) and red (655 nm) upconverted emissions were observed, attributed to the S-4(3/2) -> I-4(15/2) -> and F-4(9/2) -> I-4(15/2) transition of Er3+ respectively. The emission intensity increased with increasing Yb3+ concentration due to the energy transfer (ET) between Yb3+ and Er3+. The upconverted emission reached the highest as x = 3.6, and was pump-power dependent involving a two-photon process.

引用

页码：227 / 230

页数：4

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