Pumping-route-dependent concentration quenching and temperature effect of green up- and down-conversion luminescence in Er3+/Yb3+ co-doped Gd2(WO4)3 phosphors

被引：58

作者：

Li, Jingjing ^{[1
]}

Sun, Jiashi ^{[1
]}

Liu, Jutao ^{[2
]}

Li, Xiangping ^{[1
]}

Zhang, Jinsu ^{[1
]}

Tian, Yue ^{[1
,2
]}

Fu, Shaobo ^{[1
]}

Cheng, Lihong ^{[1
]}

Zhong, Haiyang ^{[1
]}

Xia, Haiping ^{[3
]}

Chen, Baojiu ^{[1
]}

机构：

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

[2] Dalian Nationalities Univ, Coll Life Sci, Dalian 116600, Liaoning, Peoples R China

[3] Ningbo Univ, Key lab Photo Elect Mat, Ningbo 315211, Zhejiang, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2013年 / 48卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Optical materials; Chemical synthesis; X-ray diffraction; Optical properties; UP-CONVERSION; ENERGY-TRANSFER; ER3+; FLUORESCENCE; NANOCRYSTALS; THERMOMETRY; DYNAMICS; YB3+;

D O I：

10.1016/j.materresbull.2013.02.009

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Gd-2(WO4)(3) phosphors with various Er3+ concentrations and fixed Yb3+ concentration were synthesized via a co-precipitation method, and their crystal structure and morphology were characterized by using X-ray diffraction (XRD) and scanning electron microscopy (SEM). The concentration quenching behaviors of green up- and down-conversion emissions of Er3+ were analyzed, and it was confirmed that the difference between quenching concentration for up- and down-conversion emissions resulted from the different population routes. The temperature sensing properties of the Gd-2(WO4)(3):Er3+/Yb3+ phosphors were studied, and it was found that the Er3+ doping concentration slightly affected the sensitivity, and Gd-2(WO4)(3):Er3+/Yb3+ phosphors could be used in a broad temperature region for detecting temperature. Finally, the thermal effect induced by 980 nm LD irradiation was investigated, it was observed that the equilibrium temperature of Gd-2(WO4)(3):Er3+/Yb3+ sample was decided by both the excitation power and Er3+ doping concentration. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：2159 / 2165

页数：7

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