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Composite thin film material with up-conversion luminescence function and ultraviolet photosensitivity simultaneously and preparation method thereof

A composite thin film and ultraviolet light technology, which is applied in the direction of luminescent materials, chemical instruments and methods, optical mechanical equipment, etc., to achieve the effects of high hardness, adjustable refractive index, and high optical transmittance

Inactive Publication Date: 2018-10-19
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Purpose of the invention: the purpose of the present invention is to provide a composite thin film material with both up-conversion luminescent function and ultraviolet photosensitive properties and its preparation method, to solve the problem that there is no simultaneous introduction of multiple functional groups to realize the multifunctionalization of the composite thin film

Method used

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  • Composite thin film material with up-conversion luminescence function and ultraviolet photosensitivity simultaneously and preparation method thereof
  • Composite thin film material with up-conversion luminescence function and ultraviolet photosensitivity simultaneously and preparation method thereof
  • Composite thin film material with up-conversion luminescence function and ultraviolet photosensitivity simultaneously and preparation method thereof

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Embodiment 1

[0024] Composite film material with both up-conversion luminescent function and ultraviolet photosensitive properties, including a substrate and a surface layer imprinted on the substrate, wherein the substrate is a titanium dioxide organic-inorganic composite film doped with nano-erbium oxide, and the surface layer is a strip optical waveguide array structure.

[0025] The preparation method comprises the following steps:

[0026] 1) Mix tetra-n-butyl titanate and acetylacetone at a molar ratio of 1:4, and stir evenly at room temperature for 1 hour, as component A, in which acetylacetone acts as a chelating agent to inhibit the chemical activity of butyl titanate, avoiding the final The sol is not uniform such as the formation of titanium-rich regions;

[0027] 2) Mix methyltrimethoxysilane, absolute ethanol and deionized water at a molar ratio of 1:4:4, stir evenly at room temperature for 30 minutes, add 0.01 mole of concentrated hydrochloric acid, the concentration of hydr...

Embodiment 2

[0037] Composite film material with both up-conversion luminescent function and ultraviolet photosensitive properties, including a substrate and a surface layer imprinted on the substrate, wherein the substrate is a titanium dioxide organic-inorganic composite film doped with nano-erbium oxide, and the surface layer is a strip optical waveguide array structure.

[0038] The preparation method comprises the following steps:

[0039] 1) Mix tetra-n-butyl titanate and acetylacetone at a molar ratio of 1:4, and stir evenly at room temperature for 1 hour, as component A, in which acetylacetone acts as a chelating agent to inhibit the chemical activity of butyl titanate, avoiding the final The sol is not uniform such as the formation of titanium-rich areas;

[0040] 2) Mix methyltrimethoxysilane, absolute ethanol and deionized water at a molar ratio of 1:4:4, stir evenly at room temperature for 30 minutes, add 0.01 mole of concentrated hydrochloric acid, the concentration of hydroc...

Embodiment 3

[0050] Composite film material with both up-conversion luminescent function and ultraviolet photosensitive properties, including a substrate and a surface layer imprinted on the substrate, wherein the substrate is a titanium dioxide organic-inorganic composite film doped with nano-erbium oxide, and the surface layer is a strip optical waveguide array structure.

[0051] The preparation method comprises the following steps:

[0052] 1) Mix tetra-n-butyl titanate and acetylacetone at a molar ratio of 1:4, and stir evenly at room temperature for 1 hour, as component A, in which acetylacetone acts as a chelating agent to inhibit the chemical activity of butyl titanate, avoiding the final The sol is not uniform such as the formation of titanium-rich regions;

[0053] 2) Mix methyltrimethoxysilane, absolute ethanol and deionized water at a molar ratio of 1:4:4, stir evenly at room temperature for 30 minutes, add 0.01 mole of concentrated hydrochloric acid, the concentration of hydr...

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PUM

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Abstract

The invention discloses a composite thin film material with an up-conversion luminescence function and ultraviolet photosensitivity simultaneously and a preparation method thereof. The organic-inorganic composite optical waveguide film material is prepared by an improved sol-gel technology combined with a spin-coating method, and strip-shaped optical waveguide array structures with different waveguide sizes are further successfully prepared on the composite film through an ultraviolet soft imprinting technology. The composite thin film material disclosed by the invention has higher optical transmittance, adjustable refraction index, larger hardness and better wear resistance and can obtain a several micron-thick monolayer high-optical quality thin film. The composite thin film material obtained by the preparation method disclosed by the invention not only has the up-conversion luminescence function, but also has the ultraviolet photosensitivity and realizes the multi-function of the composite thin film.

Description

technical field [0001] The invention relates to an organic-inorganic composite material with photosensitive properties and its preparation, in particular to a composite film material with both up-conversion luminescence function and ultraviolet photosensitive properties and a preparation method thereof. Background technique [0002] In recent years, scientists have achieved up-conversion luminescence by doping rare earth ions in glass and ceramic materials, which can be widely used in color display, high-density optical storage, biomedical detection, and infrared laser observers and indicators. Among the rare earth ions that realize up-conversion luminescence, trivalent erbium ions have been widely studied due to their very high luminous efficiency. At present, the most researched up-conversion luminescent materials are mainly glass and ceramic materials. [0003] In addition, micro-optical components are important optical components in integrated optics, and play an import...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03F7/00C09K11/78C09K11/67
CPCC09K11/7769G03F7/0002
Inventor 张雪花崔月娴董心悦黄静宜张伟胡芳仁
Owner NANJING UNIV OF POSTS & TELECOMM
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