Rare earth ion doped GdCl3 microcrystalline glass and preparation method thereof

Abstract

The invention discloses rare earth ion doped GdCl3 microcrystalline glass. The rare earth ion doped GdCl3 microcrystalline glass comprises the following components according to molar percentage: 80 to 93.4mol% of SiO2, 6 to 16mol% of GdCl3 and 0.6 to 4.5mol% of LnCl3, wherein the LnCl3 is selected from at least one of YbCl3, ErCl3, TmCl3 and HoCl3. The rare earth ion doped GdCl3 microcrystalline glass has the advantages of transparency, deliquescence resistance, excellent mechanical property and high blue violet laser transmittance, has the properties of low phonon energy and high up-conversion efficiency, is capable of greatly improving the efficiency of an up-conversion laser, and is simple in preparation method and low in production cost.

Description

technical field [0001] The present invention relates to a rare earth ion doped glass ceramics, in particular to a rare earth ion doped GdCl used as an up-conversion luminescent material 3 Glass-ceramic and its preparation method. Background technique [0002] Upconversion luminescence is a process that utilizes the absorption of multiple photons to generate radiative transitions, and the energy of the radiated photons is usually higher than that of the pump photons. 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 material, mainly because the lower phonon energy can reduce the pro...

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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-ceramics is microcrystalline phase and glass phase is sulfide, but the physical and chemical properties of sulfide are worse than that of oxide, and it is not transparent at short wavelengths of visible light, which affects the output of up-conversion luminescence; for example, the publication number is CN103951210, and the name is "GdCl doped with rare earth ions 3 The invention patent application of "glass ceramics and its preparation method" also discloses that a crystallite phase is GdCl 3 , the glass phase is P 2 o 5 with GeO 2 Mainly glass ceramics, doped with rare earth ions as Ce 3+ , Eu3 + , Tb 3+ 、Pr 3+ and Nd 3+ One of them, prepared by melt quenching method and subsequent heat treatment, has good scintillation performance, and is used as a scintillation luminescent material

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

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