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The enhanced 1830 nm emission in Yb/Tm:NaYF4@NaYF4 active-core/inert-shell nanocrystals.

Authors :
Lei, Lei
Wu, Ruozhen
Zhou, Jiajia
Zhang, Shengjun
Xiao, Zhen
Zhang, Junjie
Xu, Shiqing
Source :
Materials Letters. Feb2017, Vol. 189, p35-37. 3p.
Publication Year :
2017

Abstract

The strong 1830 nm emission is realized in Yb/Tm:NaYF 4 @Yb:NaYF 4 core/shell nanocrystals for the first time. The optimal Tm 3+ concentration, shell thickness and composition respectively are 2 mol%, 6.5 nm and inert NaYF 4 . In comparison with Yb/Tm:NaYF 4 nanocrystals, the luminescence intensity of Yb/Tm:NaYF 4 @NaYF 4 core/shell nanocrystals enhances about 160 times. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
0167577X
Volume :
189
Database :
Academic Search Index
Journal :
Materials Letters
Publication Type :
Academic Journal
Accession number :
120833576
Full Text :
https://doi.org/10.1016/j.matlet.2016.11.031