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Rare earth ion doped Cs3CeC16 glass ceramic and preparation method thereof

A technology of glass-ceramic and rare-earth ions, applied in the field of rare-earth ion-doped glass-ceramic, can solve the problems of poor physical and chemical properties of sulfides, affecting up-conversion luminous output, etc., and achieves good mechanical properties, excellent up-conversion properties, and efficiency. improved effect

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

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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 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 The glass-ceramic phase is a microcrystalline phase and the glass phase is a sulfide, but the physical and chemical properties of the sulfide are worse than that of the oxide, and it is opaque at short wavelengths of visible light, which affects the up-conversion luminous output; for example, the publication number is CN103951240, and the name is "Cs doped with rare earth ions 2 LiLaCl 6 The invention patent application of "glass ceramics and its preparation method" also discloses that a crystallite phase is Cs 2 LiLaCl 6 , the glass phase is 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 scintillating luminescent material
But there is no trivalent rare earth ion Yb 3+ 、Er 3+ 、Tm 3+ and Ho 3+ Doped Cs 3 CeCl 6 Published reports on the use of glass-ceramics in upconversion luminescent materials

Method used

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  • Rare earth ion doped Cs3CeC16 glass ceramic and preparation method thereof
  • Rare earth ion doped Cs3CeC16 glass ceramic and preparation method thereof
  • Rare earth ion doped Cs3CeC16 glass ceramic and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0020] T m 3+ , Yb 3+ Doped Cs 3 CeCl 6 The molar percentage composition of glass ceramics is: SiO 2 90mol%, Cs 3 CeCl 6 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 cerium acetate, cesium acetate, ytterbium acetate and thulium acetate, wherein the parts of cerium acetate and cesium acetate are respectively in molar percentage composition Cs 3 CeCl 6 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 ste...

Embodiment 2

[0027] Er 3+ , Yb 3+ doped Cs 3 CeCl 6 The molar percentage composition of glass-ceramic is: SiO 2 88.5mol%, Cs 3 CeCl 6 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 3 CeCl 6 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 3 CeCl 6 The molar percentage composition of glass-ceramic is: SiO 2 87mol%, Cs 3 CeCl 6 10mol%, ErCl 3 0.2mol%, TmCl 3 0.1mol%, YbCl 3 2.7mol%, after the preparation and heat treatment process identical with embodiment 1, obtain transparent rare earth ion Er 3+ 、Tm 3+ , Yb 3+ Doped Cs 3 CeCl 6 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. By changing the doping concentration of rare earth, the ratio of red, green and blue luminous intensity can be controlled.

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Abstract

The invention discloses a rare earth ion doped Cs3CeC16 glass ceramic which comprises the following components by mole percent: 87-93.5mol% of SiO2, 66-10mol% of Cs3CeC16 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 Cs3CeC16 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 Cs used as an up-conversion luminescent material 3 CeCl 6 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 th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C10/16
Inventor 欧阳绍业张约品张为欢张志雄王倩
Owner NINGBO UNIV
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