High scattering super-hydrophobic quantum dot film and preparation method thereof

A scattering and super-hydrophobic technology, applied in nonlinear optics, instruments, optics, etc., can solve the problems of being susceptible to moisture and oxygen, failure of quantum dots, unstable properties of quantum dot materials, etc., to improve the spatial distribution of color temperature. The effect of uniformity, conversion efficiency improvement, and quantum dot material saving

Pending Publication Date: 2017-03-22
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the properties of quantum dot materials are unstable and are easily affected by moisture and oxygen, causing the quantum dots on the edge and surface of the diaphragm to fail.

Method used

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  • High scattering super-hydrophobic quantum dot film and preparation method thereof
  • High scattering super-hydrophobic quantum dot film and preparation method thereof
  • High scattering super-hydrophobic quantum dot film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Preparation of Highly Scattering Superhydrophobic Quantum Dot Film

[0048] (1) Preparation of quantum dot layer: Use a balance to measure 24mg of cadmium selenide quantum dot powder and 0.9g of Dow Corning OE6650 B-type silica gel liquid and dissolve them in 6ml of acetone solution to form a mixture. Stir the mixture in a magnetic stirrer at a constant temperature of 80°C. Until the acetone solution in the mixture is completely volatilized; after adding 0.3g of mixed curing agent to the obtained quantum dot-silica gel solution, the Dow Corning OE6650 A type silica gel liquid is mixed with 36wt% of the curing agent component. Mix evenly with a centrifugal mixer and defoam, pour into a mold with a film thickness of 2mm, bake and cure in an oven at 160°C for 2 hours, and release the mold after curing to obtain a quantum dot layer 2 with a thickness of 2mm;

[0049] (2) Preparation of conical hole layer: use photolithography technology to process uniformly distributed cone m...

Embodiment 2

[0054] Same as Example 1, the difference is that the particles of the super-hydrophobic particle layer adopt a particle diameter of 25nm and 125nm silicon dioxide particles;

[0055] And in step (3): the smooth surface of the cone layer obtained in step (2) is pasted on a round smooth sapphire sheet with a diameter of 50 mm without surface structure as a self-assembled substrate; combined with phase separation technology, the orthosilicon ethyl orthosilicate (TEOS), absolute ethanol (ETH), glycerol, deionized water, and 13mol / L concentrated ammonia water at a volume of 1:10:1:5:2 Proportional mixing, stirring quickly on a magnetic stirrer to make it evenly mixed, after the reaction was carried out for 30 minutes, it was left to stand at room temperature for 24 hours to obtain an opalescent and translucent alkali sol; the mass ratio of adding TEOS to the alkali sol was 16 % polyacrylic acid; the alkali sol added with polyacrylic acid was uniformly plated on the clean above-ment...

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Abstract

The invention discloses a high scattering super-hydrophobic quantum dot film and a preparation method thereof. The high scattering super-hydrophobic quantum dot film is a composite structure film formed by combining an upper super-hydrophobic particle layer (1), an upper taper hole layer (2), a quantum dot layer (3), a lower taper hole layer (4) and a lower super-hydrophobic particle layer (5) in sequence from top to bottom. The upper super hydrophobic particle layer (1) and the lower super-hydrophobic particle layer (5) are both formed by uniformly arranging nanoscale particles with two different particle sizes, and the particles are subjected to surface hydrophobic modification and therefore have a super-hydrophobic property; both the upper taper hole layer (2) and the lower taper hole layer (4) contain a smooth optical surface and an optical surface on which taper hole microstructures are uniformly distributed; the quantum dot layer (3) is a quantum dot and silica gel mixed layer. The high scattering super-hydrophobic quantum dot film has the function of improving the scattering property and the super-hydrophobic property, and at the same time, the service life of the quantum dot film is prolonged.

Description

technical field [0001] The invention relates to the field of preparation of quantum dot films, in particular to a highly scattering superhydrophobic quantum dot film and a preparation method thereof. Background technique [0002] Due to the characteristics of low energy consumption, good color rendering, light weight, energy saving and environmental protection, liquid crystal displays have become the mainstream displays in the market. In existing liquid crystal displays (LCDs), light-emitting diodes (LEDs) are usually used as the backlight source, and the backlight required by the liquid crystal display panel is realized through a reasonable combination of light-inducing plates and optical films. As people's requirements for high color gamut and high color saturation are getting higher and higher, quantum dot display technology has also attracted more and more attention. Quantum dot display technology can use crystals of different sizes to control the wavelength of light, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357
CPCG02F1/1336G02F1/133614
Inventor 汤勇陈钧驰李宗涛庄宝山李志林庆宏万珍平
Owner SOUTH CHINA UNIV OF TECH
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