Effect of Yb3+ concentration and location on the thermally enhanced upconversion emission intensity of Yb/Ho: Na3ZrF7 nanocrystals

被引：7
|
作者：
Dai, Xiaoru [1 ]
Lei, Lei [1 ]
Xia, Jienan [1 ]
Han, Xia [1 ]
Hua, Youjie [1 ]
Xu, Shiqing [1 ]
机构：
[1] China Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2018年 / 766卷
基金：
中国国家自然科学基金;
关键词：
Inverse thermal quenching; Upconversion; Location; Concentration; TEMPERATURE SENSORS; DOPED NANOPARTICLES; LUMINESCENCE; PHOTOLUMINESCENCE; BEHAVIOR;
D O I：
10.1016/j.jallcom.2018.06.206
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
It was reported that the UC emission intensity can be improved by introducing a thermal field and this phenomenon is highly related to the Yb3+ ions. Herein, we verify the thermal-induced UC enhancement degree can be further increased by separating the Yb3+ ions in the core and shell to promote the population of the defect energy level and inhibit the back energy transfer from Ho3+ to Yb3+ ions. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码：261 / 265
页数：5
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