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Erbium-ytterbium double-doped lanthanum-lutetium oxide laser material and preparation method thereof

A laser material, lanthanum oxide technology, applied in the direction of luminescent materials, chemical instruments and methods, etc., can solve the problems of high concentration doping and low luminous intensity, and achieve the effect of low cost, simple preparation method and smooth surface

Inactive Publication Date: 2020-11-10
CHANGCHUN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The second object of the invention is to solve the problem that the lutetium oxide up-conversion luminescent material in the prior art has low luminous intensity and cannot be doped at a high concentration

Method used

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  • Erbium-ytterbium double-doped lanthanum-lutetium oxide laser material and preparation method thereof
  • Erbium-ytterbium double-doped lanthanum-lutetium oxide laser material and preparation method thereof
  • Erbium-ytterbium double-doped lanthanum-lutetium oxide laser material and preparation method thereof

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preparation example Construction

[0052] The invention provides a preparation method of erbium-ytterbium double-doped lanthanum-lutetium oxide laser material, directly in (LaLu) 2 o 3 Er 3+ and Yb 3+ Rare earth ions, high-quality Er,Yb:(LaLu) prepared by citric acid combustion 2 o 3 Nanopowder, Er,Yb:(LaLu) prepared by cold isostatic pressing-vacuum sintering method 2 o 3 Transparent ceramics, specifically comprising the following steps:

[0053] Step 1. The final target powder is 2g, and the general formula of the final target powder sample is Er 2x ,Yb 2y :(La 0.1 Lu 0.9-x-y ) 2 o 3 (0.01≤x≤0.09, 0.01≤y≤0.07), calculate the required amount of rare earth oxide, combustion agent and dispersant according to the atomic number ratio of the general formula;

[0054] Step 2, the weighed Er 2 o 3 , Yb 2 o 3 , La 2 o 3 、Lu 2 o 3 Drugs are dissolved together in 15mL of 6mol / L HNO 3 , placed in a water bath at a constant temperature of 80°C to obtain a pale pink transparent solution;

[0055] Step...

Embodiment 1

[0064] In the raw material ratio of the present embodiment, x=0.07, y=0.05 (molar ratio), weigh 0.1375g Er 2 o 3 , 0.1012gYb 2 o 3 , 0.1673g La 2 o 3 , 1.5940g Lu 2 o 3 Soluble in an appropriate amount of 6mol / L HNO 3 , placed in a water bath at 80°C for 4 hours to obtain a pale pink transparent solution. Add an appropriate amount of combustion agent citric acid into the solution, and then add dispersant PEG10000 to adjust the pH of the solution to 7. Continue heating and stirring on a constant temperature stirrer until the color of the solution is darkened and reaches a certain viscosity. After stopping the heating, take out the magnet and let it cool down to form a gel. The gel was placed in an electric blast drying oven and aged at 280°C for 2 hours. After the dried gel was cooled to room temperature, it was fully ground, transferred to a crucible, and placed in a muffle furnace for calcination at 1000°C for 2 h. The calcined sample was fully ground to obtain a wh...

Embodiment 2

[0066] In the raw material ratio of the present embodiment, x=0.01, y=0.01 (molar ratio), weigh 0.0196g Er 2 o 3 , 0.0202gYb 2 o 3 , 0.1669g La 2 o 3 , 1.7934g Lu 2 o 3 Soluble in an appropriate amount of 6mol / L HNO 3 , placed in a water bath at 80°C for 4 hours to obtain a pale pink transparent solution. Add an appropriate amount of combustion agent citric acid into the solution, and then add dispersant PEG10000 to adjust the pH of the solution to 7. Continue heating and stirring on a constant temperature stirrer until the color of the solution is darkened and reaches a certain viscosity. After stopping the heating, take out the magnet and let it cool down to form a gel. The gel was placed in an electric blast drying oven and aged at 280°C for 2 hours. After the dried gel was cooled to room temperature, it was fully ground, transferred to a crucible, and placed in a muffle furnace for calcination at 1000°C for 2 h. The calcined sample was fully ground to obtain a wh...

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Abstract

The invention discloses an erbium-ytterbium double-doped lanthanum-lutetium oxide laser material, which is characterized in that it includes the structure shown in formula (I): Er 2x ,Yb 2y :(La 0.1 Lu 0.9‑x‑y ) 2 o 3 (I); wherein, 0.01≤x≤0.09, 0.01≤y≤0.07. The invention discloses a preparation method of an erbium-ytterbium double-doped lanthanum-lutetium oxide laser material, comprising the following steps: step 1, weighing Er 2 o 3 , Yb 2 o 3 , La 2 o 3 、Lu 2 o 3 After dissolving in nitric acid, heat at a constant temperature to obtain a mixed solution, add a combustion agent to the mixed solution, and then add a dispersant, adjust the pH to 7 after it is completely dissolved, continue to heat at a constant temperature and gradually dehydrate to obtain a gel; step 2, the gel Grinding and calcining after drying, and then grinding to obtain nano powder after calcination; step 3, adding sintering aid and absolute ethanol to the nano powder, stirring, drying and grinding to obtain pretreated powder; step 4. After pressing the pretreated powder to obtain a green body, then cold isostatic pressing to obtain a green body; step 5, performing constant temperature vacuum sintering on the green body to obtain the laser material.

Description

technical field [0001] The invention relates to a laser material, in particular to an erbium-ytterbium double-doped lanthanum-lutetium oxide laser material and a preparation method thereof. Background technique [0002] Solid-state laser materials are the core of solid-state lasers and are widely used in military, industrial, medical and daily life. At present, solid-state laser materials mainly include single crystal, glass and transparent ceramics. Among them, transparent laser ceramics not only have similar physical and chemical properties and spectral properties as single crystal materials, but also are easy to control in shape, and can be uniformly doped with high concentrations of rare earth ions. The purpose of further improving the luminous performance of the material is achieved. Therefore, the study of transparent laser ceramics is of great significance. [0003] Lu 2 o 3 As a commonly used host material for laser materials, it has the advantages of easy doping...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/78
CPCC09K11/7769
Inventor 朱忠丽代雨航李剑
Owner CHANGCHUN UNIV OF SCI & TECH
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