Role of Ca2+ co-dopants on structural and optical properties of YF3:Tm3+/Yb3+ upconversion phosphor for improved optical thermometry

被引：28
作者：
Kumar, A. [1 ,2 ]
Tiwari, S. P. [2 ]
Sardar, A. [2 ]
Kumar, K. [2 ]
Esteves da Silva, Joaquim C. G. [1 ]
机构：
[1] Univ Porto, Fac Ciencias, Rua Campo Alegre S-N, P-4169007 Porto, Portugal
[2] Indian Sch Mines, Indian Inst Technol, Dept Appl Phys, Dhanbad 826004, Jharkhand, India
来源：
SENSORS AND ACTUATORS A-PHYSICAL | 2018年 / 280卷
关键词：
Hydrothermal method; Upconversion emission; YF3Tm3+/Yb3+/Ca2+; Temperature sensor; TEMPERATURE SENSOR; LUMINESCENCE; GLASS; NANOCRYSTALS; EMISSION; LAF3;
D O I：
10.1016/j.sna.2018.07.011
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This work describes the synthesis, structural and optical properties of Tm3+/Yb-3 doped and Ca2+ co-doped YF3 upconversion phosphor material. The effect of Ca2+ ions co-dopant concentration is varied at 0, 10, 20 and 30 mol% to observe it's effect on YF3:Tm3+/Yb3+ through different characterizations like XRD, XPS, FE-SEM, FTIR, UV-vis and upconversion measurements. Dominant upconversion emission bands are found at 450, 476, 645 and 696 nm emission wavelengths corresponding to the D-1(2)-> F-3(4), (1)G(4)-> H-3(6) (1)G(4)-> F-3(4) and F-3(3)-> H-3(6) transitions within Tm3+ activator center on 976nm excitation. Finally, prepared samples are utilized in temperature sensing application demonstrations with Ca2+ ions co-dopants concentration variations. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码：179 / 187
页数：9
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