Co-precipitation synthesis of YAG:Dy nanophosphor and its thermometric properties

被引：32
作者：
Chong, Joo-Yun [1 ]
Zhang, Yuelan [3 ]
Wagner, Brent K. [2 ]
Kang, Zhitao [2 ,3 ]
机构：
[1] Georgia Inst Technol, Sch Chem & Biomol Engn, Atlanta, GA 30332 USA
[2] Georgia Inst Technol, Georgia Tech Res Inst, Atlanta, GA 30332 USA
[3] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2013年 / 581卷
关键词：
Nanophosphor; YAG:Dy; Thermographic; NANO-SIZED POWDER; THERMOGRAPHIC PHOSPHORS; LUMINESCENT PROPERTIES; NANOPARTICLES;
D O I：
10.1016/j.jallcom.2013.07.122
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Dy3+ doped yttrium aluminum garnet (YAG) nanophosphors were synthesized by a co-precipitation method for potential thermographic applications in a liquid media dispersed with fluorescent nanoparticles. The doping concentration and annealing temperature on the structural and optical properties of YAG: Dy were investigated. Pure phase YAG: Dy nanophosphors were obtained by annealing the co-precipitated hydroxide products at above 900 degrees C. Maximum photoluminescence intensity was observed from 6%Dy doped YAG samples. The effect of measuring temperature between 20 and 350 degrees C on the photoluminescence spectra of nano YAG: Dy was investigated. A temperature-sensitive change in the peak intensity ratio of 496/457 nm emission lines was demonstrated for such nanophosphors for the first time, suggesting potential applications in temperature monitoring of fuel spray. (C) 2013 Elsevier B. V. All rights reserved.
引用
收藏
页码：484 / 487
页数：4
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