Yb3+-sensitized upconversion and downshifting luminescence in Nd3+ ions through energy migration

Qi Zhu; Tianying Sun; Mei Nog Chung; Xinwen Sun; Yao Xiao; Xvsheng Qiao; Feng Wang

doi:10.1039/C8DT00218E

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Yb³⁺-sensitized upconversion and downshifting luminescence in Nd³⁺ ions through energy migration†

Qi Zhu,^ac Tianying Sun,^ac Mei Nog Chung,^a Xinwen Sun,^b Yao Xiao,^b Xvsheng Qiao

*^b and Feng Wang

*^ac

Author affiliations

* Corresponding authors

^a Department Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong SAR, China
E-mail: fwang24@cityu.edu.hk

^b State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
E-mail: qiaoxus@zju.edu.cn

^c City Universities of Hong Kong Shenzhen Research Institute, Shenzhen 518057, China

Abstract

A core–shell–shell nanostructure composed of NaGdF₄:Yb/Tm@NaGdF₄:Nd@NaYF₄ is developed to realize Yb³⁺-sensitized upconversion and downshifting luminescence in Nd³⁺ ions. The unusual photon conversion property stems from a gadolinium sublattice mediated Yb³⁺ → Tm³⁺ → Gd³⁺ → Nd³⁺ energy transfer pathway. The energy transfer processes are investigated by varying the dopant concentration and distribution, in conjunction with time decay measurements.

This article is part of the themed collection: Metal Complexes and Nanoparticles for Energy Upconversion

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Article information

DOI: https://doi.org/10.1039/C8DT00218E
Article type: Communication
Submitted: 18 ⵉⵏⵏ 2018
Accepted: 07 ⴱⵕⴰ 2018
First published: 12 ⴱⵕⴰ 2018

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Dalton Trans., 2018,47, 8581-8584

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Yb³⁺-sensitized upconversion and downshifting luminescence in Nd³⁺ ions through energy migration

Q. Zhu, T. Sun, M. N. Chung, X. Sun, Y. Xiao, X. Qiao and F. Wang, Dalton Trans., 2018, 47, 8581 DOI: 10.1039/C8DT00218E

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Dalton Transactions