The color-tunable up-conversion photoluminescence properties of Na0.5Bi0.5TiO3:Yb3+/Tm3+ ceramics and its temperature sensing application based on the intrinsic defects

被引：20

作者：

Huang, Yinpeng ^{[1
]}

Luo, Laihui ^{[1
]}

Cheng, Wei ^{[2
]}

机构：

[1] Ningbo Univ, Dept Microelect Sci & Engn, Ningbo 315211, Zhejiang, Peoples R China

[2] Shanghai Normal Univ, Math & Sci Coll, Shanghai 200234, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2019年 / 797卷

关键词：

Multicolor up-conversion; Photoluminescence; Defect temperature sensing; LUMINESCENCE; GLASS; NANOPARTICLES; EMISSION; POLARIZATION; SRTIO3; STATE; ER3+;

D O I：

10.1016/j.jallcom.2019.05.168

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：

Developing an alternative solution to reduce or not use the rare-earth ions is of much importance. Tunable up-conversion (UC) multicolor luminescence is realized by utilizing the green UC emission of the intrinsic defects and optimizing the doping contents of Yb3+ and Tm3+ ions in the Na0.5Bi0.5-x-yYbxT-m(y)TiO(3) (NBT: xYb/yTm) ceramics. The UC white-light emission, which is close to the standard achromatic point, is achieved by an optimal design. And the possible up-conversion emission mechanism of defects and Tm3+/Yb3+ ions is also discussed. In addition, the optical temperature sensing properties were also investigated basing on the UC emission of defects in a temperature range from 83 to 683 K. The results indicate that the NBT:xYb/yTm is promising for the application as optical thermometry materials. (C) 2019 Elsevier B.V. All rights reserved.

引用

页码：659 / 665

页数：7

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