Quantum dot and plasma coupled color filter preparation method

A color filter and plasma technology, applied in the direction of optical filters, optics, instruments, etc., can solve the problems of light-emitting wavelength red shift, energy loss, etc., achieve large absorption cross-section, reduce energy loss, and reduce usage Effect

Active Publication Date: 2016-06-01
SOUTHEAST UNIV
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Problems solved by technology

And the self-absorption effect of high-density quantum dot film will cause energy loss and red shift of luminous wavelength

Method used

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  • Quantum dot and plasma coupled color filter preparation method

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Embodiment Construction

[0022] The preparation method of the metal quantum dot plasma coupler color filter is as follows:

[0023] 1) Preparing metal nanoparticles 1 by polyol method;

[0024] 2) Using ammonia water to catalyze the hydrolysis of ethyl orthosilicate to prepare metal / SiO coated with different thicknesses of silica shells 2 2 core / shell composite particle 3;

[0025] 3) Amination of metal / SiO using 3-aminopropyltriethoxysilane 2 the surface of the core / shell composite particle 3;

[0026] 4) Prepare oil-phase red light quantum dots and green light quantum dots 4 by high-temperature pyrolysis, and replace their 4 surface ligands with 3-mercaptopropionic acid;

[0027] 5) Using the self-assembly method to combine metal / SiO 2 The core / shell composite particle 3 is connected with the quantum dot 4 to form a metal quantum dot plasmonic coupler 5;

[0028] 6) Preparation of SiO by using ammonia water to catalyze the hydrolysis of ethyl orthosilicate 2 Sol;

[0029] 7) Combining metal q...

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Abstract

The invention provides a preparation method of a metal quantum dot plasma coupler color filter. The preparation method comprises the steps that 1) metal nanoparticles (1) are prepared by utilizing a polyol method; 2) metal/SiO2 core/shell composite particles (3) coated by silicon dioxide shell layers (2) of different thicknesses are prepared; 3) amination of the surface of the metal/SiO2 core/shell composite particles is performed by utilizing 3-aminopropyltriethoxysilane; 4) oil phase red light quantum dots and green light quantum dots (4) are prepared by utilizing a high temperature thermal decomposition method and surface ligands are replaced by 3-mercaptopropionic acid; 5) the metal/SiO2 core/shell composite particles are connected with the quantum dots by utilizing a self-assembling method so that a metal quantum dot plasma coupler (5) is formed; 6) ethyl orthosilicate is catalyzed to be hydrolyzed by utilizing ammonia to prepare SiO2 sol; 7) the metal quantum dot plasma coupler is mixed with the SiO2 sol so that metal quantum dot plasma coupler dispersion liquid is formed; and 8) metal quantum dot plasma coupler dispersion liquid is enabled to form a pixel image by utilizing a spraying method.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a color filter coupled with semiconductor quantum dots and metal plasma and a preparation method. Background technique [0002] At present, the color of liquid crystal display is realized by color filter layer. The color filter layer is formed by color photoresist materials after a series of yellow light processes. Commonly used color filter layers are formed by dissolving and dispersing resins, monomers, photoinitiators and pigments in solvents. [0003] The pigment is the substance that makes the color filter layer realize color. When the light emitted from the backlight passes through the RGB color filter layer, only the corresponding R, G, and B bands of light pass through, and the light of other bands is absorbed by the pigment, so the light produces RGB colors after passing through the color filter layer. Currently commonly used RGB pigments are R254, R177, G58, B166. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/20G02F1/1335G02F1/13357
CPCG02B5/20G02F1/133514G02F1/133516G02F1/133614
Inventor 张家雨廖晨樊恺
Owner SOUTHEAST UNIV
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