Optical thermometry based on green upconversion emission in Er3+/Yb3+ codoped BaGdF5 glass ceramics

被引：19
|
作者：
Wu, Ting [1 ]
Zhao, Shilong [1 ]
Lei, Ruoshan [1 ]
Huang, Lihui [1 ]
Xu, Shiqing [1 ]
机构：
[1] China Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R China
来源：
MATERIALS RESEARCH EXPRESS | 2018年 / 5卷 / 02期
基金：
中国国家自然科学基金;
关键词：
optical thermometry; glass ceramics; upconversion; rare earth ions; TEMPERATURE SENSING BEHAVIOR; LUMINESCENCE PROPERTIES; NANOCRYSTALS; YB3+/ER3+; PHOSPHOR; SPECTROSCOPY; FIBERS; LASER;
D O I：
10.1088/2053-1591/aaa909
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Er3+/Yb3+ codoped BaGdF5 glass ceramics have been prepared and used to develop a portable all-fiber temperature sensor based on fluorescence intensity ratio technique. XRD and TEM results affirm the generation of BaGdF5 nanocrystals in the borosilicate glass. Eu3+ ions are used as spectral probe to investigate external environment around rare earth (RE) ions. Intense green upconversion emissions from Er3+ ions are detected in the BaGdF5 glass ceramics and their intensity are enhanced about three orders of magnitude after heat treatment, which is attributed to the enrichment of RE ions in the BaGdF5 phase. Based on green upconversion emission from Er3+ ions, the temperature sensing property of the portable all-fiber temperature sensor is studied. The maximum absolute sensitivity is 15.5 x 10(-4) K-1 at 567 K and the relative sensitivity is 1.28% K-1 at 298 K, respectively.
引用
收藏
页数：8
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