Luminescent La2O2S:Eu3+ nanoparticles as non-contact optical temperature sensor in physiological temperature range

被引：41

作者：

Jiang, Guicheng ^{[1
]}

Wei, Xiantao ^{[2
]}

Chen, Yonghu ^{[2
]}

Duan, Changkui ^{[2
]}

Yin, Min ^{[2
]}

Yang, Bin ^{[1
]}

Cao, Wenwu ^{[1
,3
,4
]}

机构：

[1] Harbin Inst Technol, Condensed Matter Sci & Technol Inst, Harbin 150001, Peoples R China

[2] Univ Sci & Technol China, Dept Phys, Hefei 230026, Peoples R China

[3] Penn State Univ, Dept Math, University Pk, PA 16802 USA

[4] Penn State Univ, Mat Res Inst, University Pk, PA 16802 USA

来源：

MATERIALS LETTERS | 2015年 / 143卷

基金：

中国国家自然科学基金;

关键词：

Nanoparticle; Fluorescence; Temperature sensor; OXYSULFIDE; FLUORESCENCE;

D O I：

10.1016/j.matlet.2014.12.057

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Pure hexagonal-phase europium doped lanthanum oxysulflde (La2O2S: Eu3+) nanoparticles have been successfully prepared by a wet chemical method. Transmission electron microscopy (TEM) results show that the as synthesized nanoparticles are monodisperse and uniform with the size of about 15 nm. Luminescence properties of the La2O2S: Eu3+ nanoparticles were investigated by measuring the emission spectra and fluorescence decay curves at various temperature. These nanoparticles display remarkable thermal sensitivity in terms of both fluorescence intensity and fluorescence lifetime over a temperature range of 15-60 degrees C, which make La2O2S: Eu3+ nanoparticles superb candidates for fluorescent sensing of physiological temperatures with miniaturized temperature sensor down to the nanoscale. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：98 / 100

页数：3

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