基于Yb3+/Er3+/Tm3+三掺杂Ba3In2F12荧光粉的光学温度传感性能研究
Optical Temperature Sensing Performance Based on Yb3+/Er3+/Tm3+Triple-doped Ba3In2F12 Phosphor
周晨露 1李帅 1张晨 1赵小奇2
作者信息
- 1. 西安明德理工学院通识教育学院,陕西西安 710124
- 2. 宝鸡文理学院物理与光电技术学院,陕西宝鸡 721016
- 折叠
摘要
上转换发光材料在温度传感方面具有独特的优势.采用典型的水热法合成了Yb3+,Er3+,Tm3+三掺杂的Ba3In2F12发光材料,利用X射线衍射和荧光光谱仪,对样品的晶体结构、发光光谱及温度传感特性进行了研究.在980 nm激光器的激发下,样品的发射峰位于475,540,543,650,651和790 nm,分别对应于Tm3+离子的1G4→3H6跃迁、Er3+离子的2H11/2/4S3/2→4I15/2跃迁和4F9/2→4I15/2跃迁及Tm3+离子的1G4→3F4跃迁和3H4→3H6跃迁.同时基于热和非热耦合能级的荧光强度比技术,研究了其在260～480 K范围的温度传感性能.通过引入一种多通道测温的方式,构建了一种在260～480 K的宽温度范围内高灵敏度的测温模式,以上结果证明了该材料是一种应用前景良好的光学温度传感器.
Abstract
Upconversion luminescent materials have unique advantages in temperature sensing.The Yb3+,Er3+and Tm3+tri-doped Ba3In2F12 phosphor was synthesized by a typical hydrothermal method.The crystal structure,luminescence spectrum and temperature sensing characteristics of the sample were studied by X-ray diffraction and fluorescence spectrometer.The emission peaks of the sample are located at 475,540,543,650,651 and 790 nm which correspond to the 1G4→3H6(Tm3+),2H11/2/4S3/4→4I15/2 and 4F9/2→4I15/2(Er3+)and 1G4→ 3F4 and 3H4→3H6(Tm3+)transitions under 980 nm excitation.Meanwhile,the temperature sensing performance in the range of 260-480 K was studied based on the fluorescence intensity ratio technique at thermal and non-thermal coupling levels.By introducing a multi-channel temperature measurement method,a high sensitivity temperature measure-ment mode was constructed in the wide temperature range of 260-480 K.The above results prove that the mate-rial is a kind of optical temperature sensor with good application prospect.
关键词
光学温度传感/上转换发光/荧光强度比(LIR)/灵敏度/稀土Key words
optical temperature sensing/up-conversion luminescence/LIR/sensitivity/rare earths引用本文复制引用
基金项目
陕西省教育厅专项科研项目(23JK0291)
出版年
2024
NETL
NSTL
万方数据