Rare earth ion doped SrI2 microcrystalline glass and preparation method thereof

A technology of glass ceramics and rare earth ions, which is applied in the field of SrI2 glass ceramics doped with rare earth ions and its preparation, can solve the problems of poor chemical stability and mechanical strength, easy moisture absorption of crystals, low phonon energy, etc., and achieve mechanical Good performance, high transmittance of blue-violet light, low phonon energy

Inactive Publication Date: 2016-02-17
NINGBO UNIV
View PDF3 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

SrI 2 Crystals have lower phonon energy than fluoride, and are more suitable as rare earth doped upconversion luminescent hosts, and rare earth ion doped SrI 2 crystals have higher upconversion efficiency than fluoride crystals doped with rare earth ions, but SrI 2 Crystals are easy to absorb moisture, require special handling and storage, are difficult to prepare, and have poor chemical stability and mechanical strength, which affect their practical applications.
But there is no trivalent rare earth ion Yb 3+ 、Er 3+ and Tm 3+ Doped SrI 2 Published reports on the use of glass-ceramics in upconversion luminescent materials

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Rare earth ion doped SrI2 microcrystalline glass and preparation method thereof
  • Rare earth ion doped SrI2 microcrystalline glass and preparation method thereof
  • Rare earth ion doped SrI2 microcrystalline glass and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Er 3+ , Yb 3+ doped SrI 2 The molar percentage composition of glass-ceramic is: SiO 2 80mol%, SrI 2 15mol%, ErI 3 0.5mol%, YbI 3 4.5mol%, the process for preparing glass-ceramics of the above composition is as follows:

[0021] (1) Weigh strontium acetate, ytterbium acetate, and erbium acetate, and the parts are respectively composed of SrI in the above mole percentage 2 , YbI 3 , ErI 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...

Embodiment 2

[0027] Er 3+ 、Tm 3+ , Yb 3+ doped SrI 2 The molar percentage composition of glass-ceramic is: SiO 2 83mol%, SrI2 14mol%, ErI 3 0.1mol%, TmI 3 0.1mol%, YbI 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 SrI 2 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.

Embodiment 3

[0029] Er 3+ doped SrI 2 The molar percentage composition of glass-ceramic is: SiO 2 89.5mol%, SrI 2 10mol%, ErI 3 0.5mol%, after the preparation and heat treatment process identical with embodiment 1, obtain transparent rare earth ion Er 3+ Doped SrI 2 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.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses rare earth ion doped SrI2 microcrystalline glass. The rare earth ion doped SrI2 microcrystalline glass comprises the following components according to molar percentage: 80 to 89.5mol% of SiO2, 10 to 15mol% of SrI2 and 0.5 to 5mol% of LnI3, wherein the LnI3 is selected from at least one of YbI3, ErI3 and TmI3. The rare earth ion doped SrI2 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 SrI used as an up-conversion luminescent material 2 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 the host ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C03C10/16
Inventor 张志雄张约品欧阳绍业张为欢王倩
Owner NINGBO UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap