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Organic dye-infrared up-conversion luminescent transparent ceramic composite material and preparation method thereof

An infrared up-conversion and transparent ceramic technology is applied in the field of organic dye-infrared up-conversion luminescent transparent ceramic composite materials and their preparation, and can solve the problems of low luminous intensity and low up-conversion luminous efficiency.

Pending Publication Date: 2020-06-02
北京科易达知识产权服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Based on the nonlinear nature of the above-mentioned up-conversion luminescence, low up-conversion luminous efficiency and low luminous intensity are the main reasons that limit the practical application of this material in many occasions.

Method used

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  • Organic dye-infrared up-conversion luminescent transparent ceramic composite material and preparation method thereof
  • Organic dye-infrared up-conversion luminescent transparent ceramic composite material and preparation method thereof

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0025] The molecular formula [(Ho x Yb y Y 1-x-y Zr 0.03 ) 2 o 3 , 0.0005≤x≤0.02, 0.005≤y≤0.2], determine the value of x to be 0.0005, and the value of y to be 0.1, and select Ho with a purity of not less than 99.99% 2 o 3 , Yb 2 o 3 , Y 2 o 3 and ZrO 2 The powder is used as the raw material, and a total of 20g of the powder raw material is prepared according to the above composition, and 0.05wt% of LiF is added as a sintering aid;

[0026] Put zirconia balls as the ball milling medium, absolute ethanol as the solvent, and put the ball milling tank with the prepared powder into the ball mill for ball milling;

[0027] The slurry after ball milling is placed in an oven to dry;

[0028] The dried powder is sieved with a sieve of 80 to 100 mesh, and then the obtained powder is calcined in a muffle furnace for 6 hours at a calcination temperatu...

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Abstract

The invention, on one aspect, provides an organic dye-infrared up-conversion luminescent transparent ceramic composite material, which is composed of an organic dye and an infrared up-conversion luminescent transparent ceramic. The composite material is an organic matter with a strong absorption effect on near-infrared light with a wavelength of 780nm-1100nm. The chemical formula of the infrared up-conversion luminescent transparent ceramic is (HoxYbyY1-x-yZr0.03)2O3, wherein x is greater than or equal to 0.0005 and less than or equal to 0.02, and y is greater than or equal to 0.005 and less than or equal to 0.2. And the composite material is uniformly coated on a surface of the infrared up-conversion luminescent transparent ceramic. According to the material, organic dye molecules with strong absorption and long excited state service life in an infrared region are used as a sensitizing layer to absorb infrared light firstly, and then excited state electrons are transferred to a <2>F5 / 2 excited state energy level of Yb<3+> ions through resonance energy transfer, so that infrared up-conversion luminescence enhancement is realized. The up-conversion luminescent transparent ceramic Ho<3+> / Yb<3+>:Y2O3 and the preparation method thereof have important application in biomedicine and infrared sensing.

Description

technical field [0001] The invention belongs to the technical field of luminescent materials, and in particular relates to an organic dye-infrared up-conversion luminescent transparent ceramic composite material and a preparation method thereof. Background technique [0002] Infrared radiation is a kind of electromagnetic wave energy that exists widely in nature and is widely used in military, medical, scientific research and other fields. Frequency infrared up-conversion materials make use of the metastable energy level characteristics of rare earth elements to make infrared light invisible to the human eye into visible light. The up-conversion mechanism is that the rare earth ions first absorb low photon energy, the energy rises, and reach the excited state from the ground state. The energy is higher than that of the absorbed photon, enabling upconversion. Based on the nonlinear nature of the above-mentioned up-conversion luminescence, low up-conversion luminescence effi...

Claims

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Application Information

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IPC IPC(8): C04B35/48C04B35/505C04B35/622C04B35/64C04B41/82
CPCC04B35/48C04B35/505C04B35/622C04B35/64C04B41/009C04B41/46C04B41/82C04B2235/3224C04B2235/9653C04B41/4535
Inventor 不公告发明人
Owner 北京科易达知识产权服务有限公司
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