The concentration effect of upconversion luminescence properties in Er3+/Yb3+-codoped Y2(MoO4)3 phosphors

被引：29

作者：

Lua, Weili ^{[1
]}

Cheng, Lihong ^{[1
]}

Sun, Jiashi ^{[1
]}

Zhong, Haiyang ^{[1
]}

Li, Xiangping ^{[1
]}

Tian, Yue ^{[1
]}

Wan, Jing ^{[1
]}

Zheng, Yanfeng ^{[1
]}

Huang, Libo ^{[1
]}

Yu, Tingting ^{[1
]}

Yu, Hongquan ^{[2
]}

Chen, Baojiu ^{[1
]}

机构：

[1] Dalian Maritime Univ, Dept Phys, Dalian 116026, Liaoning, Peoples R China

[2] Dalian Jiaotong Univ, Coll Environm & Chem Engn, Dalian 116028, Liaoning, Peoples R China

来源：

PHYSICA B-CONDENSED MATTER | 2010年 / 405卷 / 16期

基金：

中国国家自然科学基金;

关键词：

Upconversion; Energy transfer; Cross relaxation; Er3+ and Yb3+ concentrations; ENERGY-TRANSFER; NANOCRYSTALS; ABSORPTION; IONS;

D O I：

10.1016/j.physb.2010.04.061

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Y-2(MoO4)(3):Er3+/Yb3+ phosphors with fixed (varied) Er3+ and varied (fixed) Yb3+ concentrations were synthesized by a conventional solid-state reaction. The crystal structure of the phosphors was characterized by means of X-ray diffraction (XRD). Upon 980 nm excitation, very weak blue emission, and strong green and red upconversion emissions centered at 485, 525, 545 and 656 nm were observed. The two-photon process was confirmed to be responsible for both the green and red upconversion emissions. The effects of green upconversion emission intensity ratio (H-2(11/2) -> I-4(15/2) versus S-4(3/2) -> I-4(15/2)) and the integrated upconversion emission intensity on the Yb3+ and Er3+ concentrations were studied. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：3284 / 3288

页数：5

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