Issue 5, 2013
From the journal:

Dalton Transactions

Codopant ion-induced tunable upconversion emission in β-NaYF4:Yb3+/Tm3+nanorods

Dangli Gao,*a   Xiangyu Zhang,bc   Hairong Zheng,*d   Peng Shi,a   Long Lia  and  Yawen Linga  

* Corresponding authors

a College of Science, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710055, China
E-mail: gaodangli@163.com

b Electronic Materials Research Laboratory (EMRL), Key Laboratory of Education Ministry, International Center for Dielectric Research, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China

c College of Physics and Electronic Information Engineering, Qinghai Nationalities University, Xining, Qinghai 810007, China

d College of Physics and Information Technology, Shaanxi Normal University, Xi'an, Shaanxi 710062, China
E-mail: hrzheng@snnu.edu.cn

Abstract

An innovative route to tune upconversion (UC) emission in β-NaYF4:Yb3+/Tm3+ nanorods through codoping a third rare-earth ion upon continuous wave excitation near 976 nm is reported. The dependence of UC emission on codopant concentration and environment temperature shows that tailored local environment and readjustable depopulation of excited-state ions are responsible for the tuning of UC luminescence. Codopant ions introduce a new distribution of active ions and a modified distance between Tm3+ and Yb3+ ions, making UC systems more sensitive to impurity ions than downconversion systems.

Graphical abstract: Codopant ion-induced tunable upconversion emission in β-NaYF4:Yb3+/Tm3+ nanorods

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Article information

DOI
https://doi.org/10.1039/C2DT31814H
Article type
Paper
Submitted
08 Aug 2012
Accepted
25 Oct 2012
First published
26 Oct 2012

Dalton Trans., 2013,42, 1834-1841

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Codopant ion-induced tunable upconversion emission in β-NaYF4:Yb3+/Tm3+ nanorods

D. Gao, X. Zhang, H. Zheng, P. Shi, L. Li and Y. Ling, Dalton Trans., 2013, 42, 1834 DOI: 10.1039/C2DT31814H

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