Near-infrared light emitting microcrystalline glass with embedded Er:YAG microcrystalline phase and preparation method of microcrystalline glass

A glass-ceramic and near-infrared technology, applied in the field of near-infrared light-emitting materials, can solve the problems of large difference in refractive index between glass phase and YAG phase, low near-infrared light-emitting performance, low transmittance of visible light and near-infrared light, etc. Achieve the effect of reducing light scattering, high transmittance and good luminous performance

Inactive Publication Date: 2018-08-24
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In summary, the existing Er:YAG glass-ceramic mainly has the following problems: (1) In order to obtain the matrix glass, except YAG 2 o 3 、Al 2 o 3 In addition to the essential ingredients such as Er source, additional SiO is added 2 , B 2 o 3 or P 2 o 5 Main group element oxides and Li 2 O, Na 2 O, K 2 Alkali metal oxides such as O or Ca 2 O, Sr 2 O. Ba 2 Alkaline-earth metal oxide components such as O inevitably cause but the cati

Method used

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  • Near-infrared light emitting microcrystalline glass with embedded Er:YAG microcrystalline phase and preparation method of microcrystalline glass
  • Near-infrared light emitting microcrystalline glass with embedded Er:YAG microcrystalline phase and preparation method of microcrystalline glass
  • Near-infrared light emitting microcrystalline glass with embedded Er:YAG microcrystalline phase and preparation method of microcrystalline glass

Examples

Experimental program
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Effect test

Embodiment 1

[0056] Prepare transparent Er:YAG glass-ceramics (GC), the specific steps are as follows:

[0057] (1) Glass frit mixing: the analytically pure raw materials are mixed according to 25Y 2 o 3 :73Al 2 o 3 : 2Er 2 o 3 (mol%) is placed in a mortar after accurately weighing the proportioning ratio, fully grinds and mixes in an agate mortar, and obtains a uniform glass mixture;

[0058] (2) Glass frit pressing: the glass mixture is placed in the mould, and a desktop electronic tablet press is used for tableting, and the pressure is set at 10Mpa to obtain a flake glass mixture;

[0059] (3) Glass frit pre-firing: Put the flake glass mixture into the crucible, then place the crucible in a muffle furnace and pre-fire it in an air atmosphere, raise the temperature from room temperature to 1500 °C at a rate of 5 °C / min, and keep it for 2 hours , and finally cooled to room temperature with the furnace to obtain a bulk glass mixture;

[0060] (4) Preparation of glass by container-le...

Embodiment 2

[0067] Prepare transparent Er:YAG glass-ceramics (GC), the specific steps are as follows:

[0068] (1) Glass frit mixing: the analytically pure raw materials are mixed according to 65.3YAlO 3 : 32.7Al 2 o 3 : 2ErF 3 (mol%) is accurately weighed and placed in a mortar, fully ground and mixed to obtain a uniform glass mixture;

[0069] (2) Glass frit pressing: the glass mixture is placed in the mould, and a desktop electronic tablet press is used for tableting, and the pressure is set at 10Mpa to obtain a flake glass mixture;

[0070] (3) Glass frit pre-firing: Put the flake glass mixture into the crucible, then place the crucible in a muffle furnace and pre-fire it in an air atmosphere, raise the temperature from room temperature to 1300 °C at a rate of 5 °C / min, and keep it for 2 hours , and finally cooled to room temperature with the furnace to obtain a bulk glass mixture;

[0071] (4) Preparation of glass by container-less method: place the bulk glass mixture on the noz...

Embodiment 3

[0075] Prepare transparent Er:YAG glass-ceramics (GC), the specific steps are as follows:

[0076] (1) Glass frit mixing: the analytically pure raw materials are mixed according to 29.4Y 2 o 3 : 66.7Al 2 o 3 : 3.9ErCl 3 (mol%) is accurately weighed and placed in a mortar, fully ground and mixed to obtain a uniform glass mixture;

[0077] (2) Glass frit pressing: the glass mixture is placed in the mould, and a desktop electronic tablet press is used to press the tablet, and the pressure is set at 20Mpa to obtain a sheet glass mixture;

[0078] (3) Glass frit pre-firing: put the flake glass mixture into the crucible, then place the crucible in a muffle furnace and pre-fire it in an air atmosphere, raise the temperature from room temperature to 1700 °C at a rate of 5 °C / min, and keep it for 2 hours , and finally cooled to room temperature with the furnace to obtain a bulk glass mixture;

[0079] (4) Preparation of glass by container-less method: place the bulk glass mixture...

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Abstract

The invention provides near-infrared light emitting microcrystalline glass with an embedded Er:YAG microcrystalline phase and a preparation method of the microcrystalline glass. A microcrystalline phase substance is YAG, active ions are Er <3+> and uniformly doped into YAG microcrystalline phases, the microcrystalline phases are uniformly distributed in the microcrystalline glass, cationic mole percentage of the near-infrared light emitting microcrystalline glass includes, 13-34.9% of Y<3+>, 65-77% of Al<3+> and 0.1-10% of Er<3+>, and the sum of the mole percentage of the active ions Er<3+> and Y<3+> is 23-35%. Er:YAG microcrystalline separated out from the Er:YAG microcrystalline glass is small and uniform in size, so that the prepared microcrystalline glass has the advantages of high transparency and heat conductivity, resistance to deliquescence and x-ray irradiation, excellent optical performance and the like, and the microcrystalline glass can be applied to the fields of optical amplifiers, lasers and the like.

Description

technical field [0001] The invention relates to a near-infrared luminescent material, in particular to a glass-ceramic with high light transmittance in the near-infrared band embedded with Er:YAG microcrystalline phase and a preparation method thereof. Background technique [0002] Near-infrared luminescent material is a kind of optical functional material that can produce near-infrared fluorescence in a specific range under the excitation of Xe lamps, visible wavelength semiconductor lasers, near-infrared wavelength semiconductor lasers, or other visible-near-infrared wavelength lasers, and is widely used. In the field of gain materials for optical amplifiers and lasers, the requirements for near-infrared luminescent materials are different according to different application fields, but in general, near-infrared luminescent materials should have the following characteristics: high luminous efficiency, slow fluorescence decay, laser It has the characteristics of high output ...

Claims

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Application Information

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IPC IPC(8): C03C10/02C03C4/12
CPCC03C4/12C03C10/00
Inventor 阮健钟世康张越鹏田晨韩建军赵修建
Owner WUHAN UNIV OF TECH
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