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

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...

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 such as easy moisture absorption, poor chemical stability and mechanical strength, and high price have affected its practical application.

But there is no trivalent rare earth ion Yb 3+ 、Er 3+ 、Tm 3+ and Ho 3+ Doped CeBr 3 Published reports on the use of glass-ceramics in upconversion luminescent materials

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