A high-sensitivity rare earth-doped tungsten bronze fluorescent temperature detection material

A rare earth doping, high-sensitivity technology, applied in luminescent materials, chemical instruments and methods, etc., can solve the problems of low temperature detection sensitivity and unfavorable material application, etc.
CN107345134BActive Publication Date: 2020-08-18CIVIL AVIATION UNIV OF CHINA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CIVIL AVIATION UNIV OF CHINA
Publication Date
2020-08-18

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Abstract

The invention discloses a rare earth-doped tungsten bronze fluorescence temperature detection material with high sensitivity and a preparation method thereof. The rare earth-doped tungsten bronze material has a chemical formula as Ba4Gd[0.65-x]Er0.02YbxNb10O30, wherein x is equal to 0,0.02,0.05,0.1. The Ba4Gd[0.65-x]Er0.02YbxNb10O30 material is prepared by adopting a traditional high temperature solid state reaction method, so that the material is simple in process, low in cost, good in repeatability, and convenient for batch production. Compared with former up-conversion temperature detection materials, the Ba4Gd[0.65-x]Er0.02YbxNb10O30 material is the fluorescence intensity ratio type temperature detection material with high sensitivity, and has the maximum temperature detection sensitivity at 573K being 0.013K<-1>. The research shows that rare earth Yb ion doping can be beneficial to effectively improving a temperature detection performance of the Ba4Gd[0.65-x]Er0.02YbxNb10O30 material. In addition, the Ba4Gd[0.65-x]Er0.02YbxNb10O30 material prepared by the invention has stable physical and chemical properties, does not contain metal elements unfriendly to the environment, is the green and environment-friendly temperature detection material, and has a wide industrial application prospect.
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Description

technical field

[0001] The invention relates to the field of up-conversion fluorescent temperature detection materials, in particular to a high-sensitivity rare earth-doped tungsten bronze fluorescent temperature detection material and a preparation method thereof. Background technique

[0002] Due to its wide application in important fields such as environmental science, electronics industry, biomedicine, and agricultural production, the design and development of high-sensitivity fluorescent temperature detection materials is one of the important areas that current researchers are concerned about. In recent years, rare earth-doped upconversion luminescent materials have attracted special attention due to their broad application prospects in the field of temperature sensing. At present, the temperature detection performance of many rare earth-doped inorganic materials with fluorescence intensity ratio has been studied and reported, such as Er and Yb co-doped α-NaYF under nea...

Claims

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