Rare earth ion doped K2CeCl5 glass ceramic and preparation method thereof

Abstract

The invention discloses a rare earth ion doped K2CeCl5 glass ceramic which comprises the following components by mole percent: 87.8-94mol% of SiO2, 5.5-10mol% of K2CeCl5 and 0.5-3mol% of LnCl3, wherein the LnCl3 is selected from at least one of YbCl3, ErCl3, TmCl3 and HoCl3. The rare earth ion doped K2CeCl5 glass ceramic prepared by the invention has the advantages of transparence, deliquesce resistance, excellent mechanical property, higher blue violet light transmittance, low phonon energy and high up-conversion efficiency; the efficiency of the up-conversion laser device is greatly increased; the preparation method for the glass ceramic is simple; the production cost is lower.

Description

technical field [0001] The present invention relates to a rare earth ion doped glass ceramics, in particular to a rare earth ion doped K glass used as an up-conversion luminescent material 2 CeCl 5 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. 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 materi...

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Problems solved by technology

At present, chloride transparent glass-ceramics is mainly used as scintillation and up-conversion luminescent materials, such as the publication number CN103382089, and the name is "Containing Cs 3 LaCl 6 Nanocrystalline transparent sulfur-halogen glass ceramics and its preparation" invention patent application discloses doped Nd 3+ or Er 3+ ions, with Cs 3 LaCl 6 Glass-ceramic with microcrystalline phase and glass phase of sulfide, but the physical and chemical properties of sulfide are worse than that of oxides, and they are opaque at short wavelengths of visible light, which affects the output of up-conversion luminescence; for example, the publication number is CN103951217, and the name is "Rare earth ion doped K 2 LaCl 5 The invention patent application of "glass ceramics and its preparation method" also discloses that a crystallite phase is K 2 LaCl 5 , the glass phase is SiO 2 with B 2 o 3 Mainly glass ceramics, doped with rare earth ions as Ce 3+ 、Eu 3+ , Tb 3+ 、Pr 3+ 、Nd 3+ and Dy 3+ One of them, prepared by melt quenching method and subsequent heat treatment, has good scintillation performance, and is mainly used as scintillation material

But there is no rare earth ion Yb 3+ 、Er 3+ 、Tm 3+ and Ho 3+ Doped K 2 CeCl 5 Published reports on the use of glass-ceramics in upconversion luminescent materials

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