Rare earth ion-doped CeBr3 microcrystalline glass and preparation method thereof

A technology of glass ceramics and rare earth ions, which is applied in the field of CeBr3 glass ceramics doped with rare earth ions and its preparation, can solve the problems of poor chemical stability and mechanical strength, easy moisture absorption of crystals, low phonon energy, etc., and achieve mechanical Good performance, high transmittance of blue-violet light, low phonon energy

Inactive Publication Date: 2016-02-10
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CaBr 3 The crystal has lower phonon energy than fluoride, and is more suitable as a rare-earth-doped upconversion luminescent host, and rare-earth ion-doped CeBr 3 crystals have higher upconversion efficiency than fluoride crystals doped with rare earth ions, but CeBr 3 The disadvantages of crystals suc

Method used

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  • Rare earth ion-doped CeBr3 microcrystalline glass and preparation method thereof
  • Rare earth ion-doped CeBr3 microcrystalline glass and preparation method thereof
  • Rare earth ion-doped CeBr3 microcrystalline glass and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Er 3+ , Yb 3+ doped CeBr 3 The molar percentage composition of glass ceramics is: SiO 2 80mol%, CeBr 3 15mol%, ErBr 3 0.5mol%, YbBr 3 4.5mol%, the process for preparing glass-ceramics of the above composition is as follows:

[0021] (1) Weigh cerium acetate, ytterbium acetate, and erbium acetate, and their parts are composed of CeBr in the above mole percentages respectively 3 , YbBr 3 、ErBr 3 Weigh the mole percentage content of the above-mentioned acetate, dissolve the above-mentioned acetate in deionized water to form an acetate solution, add tribromoacetic acid to the acetate solution to obtain a transparent mixed solution, wherein tribromoacetic acid and acetate solution The molar ratio of the sum of metal ions is 3:1;

[0022] (2) SiO in the same molar percentage composition as step (1) 2 The molar percentage content takes ethyl orthosilicate and dissolves it in ethanol to obtain ethyl orthosilicate solution, then mixes the mixed solution prepared in ste...

Embodiment 2

[0027] T m3+ , Yb 3+ doped CeBr 3 The molar percentage composition of glass ceramics is: SiO 2 80.5mol%, CeBr 3 15mol%, TmBr 3 0.5mol%, YbBr 3 4mol%, after the same preparation and heat treatment process as in Example 1, a transparent Tm 3+ , Yb 3+ Doped CeBr 3 Glass-ceramic. The glass-ceramic was measured with a TRIAX550 fluorescence spectrometer, under the excitation condition of a 970nm laser, a strong blue up-conversion luminescence was observed.

Embodiment 3

[0029] Er 3+ 、Tm 3+ , Yb 3+ doped CeBr 3 The molar percentage composition of glass ceramics is: SiO 2 83mol%, CeBr 3 13mol%, ErBr 3 0.1mol%, TmBr 3 0.1mol%, YbBr 3 3.8mol%, after the preparation and heat treatment process identical with embodiment 1, obtain transparent rare earth ion Er 3+ 、Tm 3+ , Yb 3+ Doped CeBr 3 Glass-ceramic. The glass-ceramic was measured with a TRIAX550 fluorescence spectrometer, under the excitation condition of a 970nm laser, strong blue, green and red upconversion luminescence were observed.

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Abstract

The invention discloses rare earth ion-doped CeBr3 microcrystalline glass. The rare earth ion-doped CeBr3 microcrystalline glass comprises the following components in molar percentage: 80mol%-94.5mol% of SiO2, 5mol%-15mol% of CeBr3 and 0.5mol%-5mol% of LnBr, wherein LnBr is at least one of YbBr3, ErBr3, TmBr3 and HoBr3. The rare earth ion-doped CeBr3 microcrystalline glass has the advantages of transparency, hygroscopy resistance, good mechanical property and relatively high blue-purple ray transmittance; the microcrystalline glass has performances of low phonon energy and high upconversion efficiency; the efficiency of an upconversion laser can be greatly improved; a preparation method is simple, and the production cost is relatively low.

Description

technical field [0001] The present invention relates to a rare earth ion doped glass ceramics, in particular to a rare earth ion doped CeBr used as an up-conversion luminescent material 3 Glass-ceramic and its preparation method. Background technique [0002] The up-conversion luminescence of rare earth ions refers to the phenomenon that when a sample doped with rare earth ions is irradiated with excitation light with a longer wavelength, light with a wavelength shorter than that of the excitation light is emitted. Utilizing the up-conversion properties of rare earth ions, an inexpensive fiber laser that can work at room temperature and continuously output violet-blue-green light can be obtained. Violet-blue-green up-conversion lasers can be used in various fields such as color displays, data storage, information technology, laser printing, and medical treatment. To improve the efficiency of upconversion luminescence, it is necessary to reduce the phonon energy of the host...

Claims

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Application Information

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IPC IPC(8): C03C10/16C03C4/12
Inventor 张志雄张约品欧阳绍业张为欢王倩
Owner NINGBO UNIV
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