Simultaneous luminescence modulation and magnetic field detection via magneto-optical response of Eu3+-doped NaGdF4 nanocrystals

Yuanhao Zhang; Quanlan Xiao; Huilin He; Junpei Zhang; Guoping Dong; Junbo Han; Jianrong Qiu

doi:10.1039/C5TC02364E

Simultaneous luminescence modulation and magnetic field detection via magneto-optical response of Eu³⁺-doped NaGdF₄ nanocrystals

Yuanhao Zhang,^a Quanlan Xiao,^a Huilin He,^a Junpei Zhang,^b Guoping Dong,*^a Junbo Han*^b and Jianrong Qiu*^a

* Corresponding authors

^a State Key Laboratory of Luminescent Materials and Devices, School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
E-mail: dgp@scut.edu.cn, qjr@scut.edu.cn
Fax: +86 2087114204
Tel: +86 2087114235

^b Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan 430074, China
E-mail: junbo.han@mail.hust.edu.cn

Abstract

Non-agglomerated and uniform Eu³⁺-doped NaGdF₄ nanocrystals were synthesized via a facile one-step precipitation method at room temperature. Under pulsed magnetic fields, the luminescence properties of the as-prepared samples have been recorded and discussed in detail. Particularly, “controllable eliminating luminescence” of ⁵D₀–⁷F₀ transition in Eu³⁺ was achieved during the magneto-optical interaction. Magnetic field assisted cross-relaxation of excited electrons was derived from Zeeman splitting of the higher ⁵D energy level, and the magnetic confinement of f electron wave functions was proposed which were responsible for the change in luminescence intensity with a variation of magnetic field strength. The characteristic variation of the emission band under pulsed magnetic fields promises an optical probe for magnetic field detection.

This article is part of the themed collection: 2015 Journal of Materials Chemistry C Hot Papers

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https://doi.org/10.1039/C5TC02364E

Article type

Paper

Submitted

31 Jul 2015

Accepted

08 Sep 2015

First published

21 Sep 2015

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J. Mater. Chem. C, 2015,3, 10140-10145

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Simultaneous luminescence modulation and magnetic field detection via magneto-optical response of Eu³⁺-doped NaGdF₄ nanocrystals

Y. Zhang, Q. Xiao, H. He, J. Zhang, G. Dong, J. Han and J. Qiu, J. Mater. Chem. C, 2015, 3, 10140 DOI: 10.1039/C5TC02364E

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Journal of Materials Chemistry C

Simultaneous luminescence modulation and magnetic field detection via magneto-optical response of Eu³⁺-doped NaGdF₄ nanocrystals

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Simultaneous luminescence modulation and magnetic field detection via magneto-optical response of Eu³⁺-doped NaGdF₄ nanocrystals

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