Rare earth ion-doped YI3 glass ceramic and preparation method thereof

A technology of glass ceramics and rare earth ions, which is applied in the field of glass ceramics doped with rare earth ions, can solve the problems of poor chemical stability and mechanical strength, easy moisture absorption of crystals, low phonon energy, etc., and achieve good mechanical properties, blue The effect of high purple light transmittance and low phonon energy

Inactive Publication Date: 2016-02-10
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

YI 3 Crystals have lower phonon energy than fluoride, and are more suitable as rare earth-doped upconversion luminescent hosts, rare earth ion-doped YI 3 crystals have higher upconversion efficiency than fluoride crystals doped with rare earth ions, but YI 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 Yb yet 3+ 、Er 3+ 、Tm 3+ and Ho 3+ Doped YI 3 Published reports on the use of glass-ceramics in upconversion luminescent materials

Method used

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  • Rare earth ion-doped YI3 glass ceramic and preparation method thereof
  • Rare earth ion-doped YI3 glass ceramic and preparation method thereof
  • Rare earth ion-doped YI3 glass ceramic and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] T m 3+ , Yb 3+ doped YI 3 The molar percentage composition of glass ceramics is: SiO 2 80.5mol%, YI 3 15mol%, TmI 3 0.5mol%, YbI 3 4mol%, the process for preparing glass-ceramics of the above composition is as follows:

[0021] (1) Weigh yttrium acetate, ytterbium acetate, and thulium acetate, and the parts are respectively YI in the above mole percentage composition 3 , YbI 3 , TmI 3 Weigh the molar percentage content, dissolve the above-mentioned acetate in deionized water to form an acetate solution, add triiodoacetic acid to the acetate solution to obtain a transparent mixed solution, wherein triiodoacetic 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 step (1) 2 The molar percentage content takes ethyl orthosilicate and dissolves it in ethanol to obtain ethyl orthosilicate solution, then mixes the mixed solution prepared in step (1) with ethyl orthosilicate solution a...

Embodiment 2

[0027] Er 3+ doped YI 3 The molar percentage composition of glass ceramics is: SiO 2 89mol%, YI 3 10mol%, ErI3 1mol%, after the preparation and heat treatment process identical with embodiment 1, obtain transparent rare earth ion Er 3+ Doped YI 3 Glass-ceramic. The glass-ceramic is subjected to a spectral test, and strong ultraviolet and purple up-conversion luminescence are observed when excited by light sources with wavelengths of 543nm and 548.8nm.

Embodiment 3

[0029] Er 3+ 、Tm 3+ , Yb 3+ doped YI 3 The molar percentage composition of glass ceramics is: SiO 2 86mol%, YI 3 10mol%, ErI 3 0.1mol%, TmI 3 0.1mol%, YbI 3 3.8mol%, after the preparation and heat treatment process identical with embodiment 1, obtain transparent rare earth ion Er 3+ 、Tm 3+ , Yb 3+ Doped YI 3 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 YI3 glass ceramic, which is prepared from the following components by molar percent: 80.5mol%-95mol% of SiO2, 4.5mol%-15mol% of YI3 and 0.5mol%-4.5mol% of LnI3, wherein LnI3 is at least one of YbI3, ErI3, TmI3 and HoI3. The prepared rare earth ion-doped YI3 glass ceramic has the advantages of being transparent, good in deliquescing resistance and mechanical property and relatively high in blue-violet light transmittance, and has the properties of low phonon energy, high upconversion efficiency and the like; the efficiency of an upconversion laser device can be greatly improved; the preparation method of the glass ceramic 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 YI 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 proba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C10/16C03C4/12
Inventor 张志雄张约品欧阳绍业张为欢王倩
Owner NINGBO UNIV
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