Lanthanide-doped NaGdF4 core–shell nanoparticles for non-contact self-referencing temperature sensors

Shuhong Zheng; Weibo Chen; Dezhi Tan; Jiajia Zhou; Qiangbing Guo; Wei Jiang; Cheng Xu; Xiaofeng Liu; Jianrong Qiu

doi:10.1039/C4NR00432A

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Lanthanide-doped NaGdF₄ core–shell nanoparticles for non-contact self-referencing temperature sensors†

Shuhong Zheng,^a Weibo Chen,^a Dezhi Tan,^a Jiajia Zhou,^b Qiangbing Guo,^a Wei Jiang,^a Cheng Xu,^a Xiaofeng Liu*^a and Jianrong Qiu*^ac

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* Corresponding authors

^a State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang, P. R. China
E-mail: qjr@zju.edu.cn, xfliu@zju.edu.cn
Fax: +86 57188925079
Tel: +86 57188925079

^b College of Materials Science and Engineering, China Jiliang University, Hangzhou, Zhejiang, P. R. China

^c State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, Guangdong, P. R. China

Abstract

We report that non-contact self-referencing temperature sensors can be realized with the use of core–shell nanostructures. These lanthanide-based nanothermometers (NaGdF₄:Yb³⁺/Tm³⁺@Tb³⁺/Eu³⁺) exhibit higher sensitivity in a wide range from 125 to 300 K based on two emissions of Tb³⁺ at 545 nm and Eu³⁺ at 615 nm under near-infrared laser excitation.

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Article information

DOI: https://doi.org/10.1039/C4NR00432A
Article type: Communication
Submitted: 22 Jan 2014
Accepted: 15 Mar 2014
First published: 21 Mar 2014

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Nanoscale, 2014,6, 5675-5679

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Lanthanide-doped NaGdF₄ core–shell nanoparticles for non-contact self-referencing temperature sensors

S. Zheng, W. Chen, D. Tan, J. Zhou, Q. Guo, W. Jiang, C. Xu, X. Liu and J. Qiu, Nanoscale, 2014, 6, 5675 DOI: 10.1039/C4NR00432A

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