Upconversion mechanisms of Er3+ :NaYF4 and thermal effects induced by incident photon on the green luminescence

被引：25

作者：

Wang, Ran ^{[1
,2
]}

Zhang, Xinlu ^{[1
,2
]}

Liu, Feng ^{[1
,2
]}

Xiao, Luying ^{[1
,2
]}

Chen, Yujin ^{[1
,2
,3
]}

Liu, Lu ^{[1
,2
,3
]}

机构：

[1] Harbin Engn Univ, Minist Educ China, Key Lab In Fiber Integrated Opt, Harbin 150001, Peoples R China

[2] Harbin Engn Univ, Sch Sci, Harbin 150001, Peoples R China

[3] Harbin Engn Univ, Coll Mat Sci & Chem Engn, Harbin 150001, Peoples R China

来源：

JOURNAL OF LUMINESCENCE | 2016年 / 175卷

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

Upconversion mechanisms; NaYF4; Thermal effect; Emission color; YB3+ CONCENTRATION; LANTHANIDE; PHOSPHORS; EMISSION; NANOCRYSTALS; NANOPHOSPHORS; NANOPARTICLES; TRANSITION; DEPENDENCE; Y2O3-ER3+;

D O I：

10.1016/j.jlumin.2016.02.018

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Wide range concentrations of Er3+ doped NaYF4 nanocrystals are synthesized. Upconversion mechanisms are discussed under 976 nm NIR laser excitation on the basis of the fluorescence spectra and lifetimes data of Er3+. It is found that the heat induced by incident laser results in an evident increase of the slope of emission from H-2(11/2) energy level in the pump power dependence. Emission color of samples is investigated and stable chromaticity under different pump power from low and heavy doping samples are found. In addition, upconversion mechanisms are also investigated under 966 nm excitation. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：35 / 43

页数：9

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