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Rare-earth-ion-doped Cs2LuCl5 microcrystalline glass and preparation method thereof

A technology of glass-ceramic and rare earth ions, which is applied in the field of rare-earth ion-doped Cs2LuCl5 glass-ceramic and its preparation, can solve the problems of affecting the up-conversion luminous efficiency, poor sulfide physicochemical properties, etc., and achieves excellent up-conversion performance, mechanical The effect of good performance and low production cost

Inactive Publication Date: 2016-01-27
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 is 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 a crystallite phase and the glass phase is 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 up-conversion luminous efficiency; for example, the publication number is CN103951229, and the name is " Rare earth ion doped Sr 2 LuCl 7 The invention patent application of "glass ceramics and its preparation method" also discloses that a crystallite phase is Sr 2 LuCl 7 , the glass phase is P 2 o 5 with SiO 2 Mainly glass ceramics, doped with rare earth ions as Ce 3+ 、Eu 3+ , 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 Cs 2 LuCl 5 Published reports on the use of glass-ceramics in upconversion luminescent materials

Method used

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  • Rare-earth-ion-doped Cs2LuCl5 microcrystalline glass and preparation method thereof
  • Rare-earth-ion-doped Cs2LuCl5 microcrystalline glass and preparation method thereof
  • Rare-earth-ion-doped Cs2LuCl5 microcrystalline glass and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0020] T m 3+ , Yb 3+ doped Cs 2 LuCl 5 The molar percentage composition of glass ceramics is: SiO 2 90mol%, Cs 2 LuCl 5 8mol%, TmCl 3 0.5mol%, YbCl 3 1.5mol%, the process for preparing glass-ceramics of the above composition is as follows:

[0021] (1) Weigh lutetium acetate, cesium acetate, ytterbium acetate and thulium acetate, wherein the parts of lutetium acetate and cesium acetate are respectively in molar percentage composition Cs 2 LuCl 5 The mole percentage content weighs, and the part of ytterbium acetate and thulium acetate is composed of YbCl in the same mole percentage as above. 3 , TmCl 3 Weigh the molar percentage content, dissolve the above-mentioned acetate in deionized water to form an acetate solution, add trichloroacetic acid to the acetate solution to obtain a transparent mixed solution, wherein trichloroacetic 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...

Embodiment 2

[0027] Er 3+ , Yb 3+ doped Cs 2 LuCl 5 The molar percentage composition of glass ceramics is: SiO 2 88.5mol%, Cs 2 LuCl 5 9mol%, ErCl 3 0.5mol%, YbCl 3 2mol%, after the same preparation and heat treatment process as in Example 1, the transparent rare earth ion Er 3+ , Yb 3+ Doped Cs 2 LuCl 5 Glass-ceramic. The glass-ceramic was measured with a TRIAX550 fluorescence spectrometer, under the excitation condition of a 970nm laser, strong green and red upconversion luminescence were observed.

Embodiment 3

[0029] Er 3+ 、Tm 3+ , Yb 3+ doped Cs 2 LuCl 5 The molar percentage composition of glass ceramics is: SiO 2 87mol%, Cs 2 LuCl 5 10mol%, ErCl 3 0.1mol%, TmCl 3 0.1mol%, YbCl 3 2.8mol%, after the preparation and heat treatment process identical with embodiment 1, obtain transparent rare earth ion Er 3+ 、Tm 3+ , Yb 3+ Doped Cs 2 LuCl 5 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 Cs2LuCl5 microcrystalline glass. The rare-earth-ion-doped Cs2LuCl5 microcrystalline glass comprises the following components in mole percentage: 87-94mol% of SiO2, 5.4-10mol% of Cs2LuCl5 and 0.6-3mol% of LnCl3, wherein LnCl3 is at least one of YbCl3, ErCl3, TmCl3 and HoCl3. The obtained rare-earth-ion-doped Cs2LuCl5 microcrystalline glass has the advantages of transparency, deliquescence resistance, good mechanical properties and high blue and violet light transmittance and has performances of low phonon energy and high upconversion efficiency, efficiency of an upconversion laser can be greatly improved, and the preparation method of the rare-earth-ion-doped Cs2LuCl5 microcrystalline glass is simple 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 Cs used as an up-conversion luminescent material 2 LuCl 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 material, m...

Claims

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Application Information

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IPC IPC(8): C03C10/16
Inventor 张为欢夏海平欧阳绍业张志雄王倩
Owner NINGBO UNIV