Unlock instant, AI-driven research and patent intelligence for your innovation.

A method for preparing graded index antireflection film based on color inkjet printing

A graded refractive index, color inkjet technology used in the optical field to achieve excellent refractive index and avoid complex processes or expensive equipment

Inactive Publication Date: 2016-01-20
HUNAN UNIV
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of color inkjet printing technology to control the composition of the film to prepare oxide films with gradient composition has not been reported.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method for preparing graded index antireflection film based on color inkjet printing
  • A method for preparing graded index antireflection film based on color inkjet printing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A method for preparing a graded-index anti-reflection film based on color inkjet printing, comprising the steps of: taking 100ml of tetraethyl orthosilicate, and adding 30ml of deionized water into a beaker containing 90ml of absolute ethanol and 30ml of isopropanol , and add 1ml of hydrochloric acid and 2 grams of polyvinyl alcohol, place the solution in a constant temperature magnetic stirrer for 70 ° C water bath reaction for 1 hour, and magnetic stirring at the same time, then take the solution out at room temperature for aging, when the viscosity reaches Inject it into the yellow ink cartridge at 40-50mpa.s. Take 20ml of isopropyl titanate, add 2ml of deionized water into a beaker filled with 80ml of absolute ethanol and 20ml of isopropanol, add 2ml of hydrochloric acid and 20mg of sodium dodecylbenzenesulfonate, and place the solution in Perform a reaction in a water bath at 80°C for 1 hour in a constant temperature magnetic stirrer, and magnetically stir at the s...

Embodiment 2

[0027] A method for preparing gradient index anti-reflection coatings based on color inkjet printing, comprising the steps of: getting 20mg of polyetherimide (PEI) and dissolving it in 50ml of absolute ethanol and 15ml of isopropanol solution to prepare PEI / ethanol solution. At room temperature, 50 mg nano-TiO 2 Disperse into PEI / ethanol solution to prepare a colloid, adjust the viscosity to about 20-30mpa.s, and inject it into the yellow ink cartridge. Dissolve 20 mg of polyvinyl alcohol into 50 ml of absolute ethanol and 15 ml of isopropanol to prepare a mixed solution. At room temperature, 50 mg nano-SiO 2 Disperse into the mixed solution to prepare a colloid, adjust the viscosity to about 20-30mpa.s, and inject it into the ink cartridge of the red ink. Set the printed color to orange, and then use a flat-panel inkjet printer to print to get the SiO 2 and TiO 2The formed film can be printed with light yellow color by inkjet printing method after the substrate is dried ...

Embodiment 3

[0029] A method for preparing a graded-index antireflection film based on color inkjet printing, comprising the steps of: getting 50ml of tetraethyl orthosilicate, and adding 12ml of deionized water into a beaker containing 50ml of absolute ethanol and 5ml of isopropanol , and add 0.5ml of hydrochloric acid and 2 grams of dodecyldiethanolamine, place the solution in a constant temperature magnetic stirrer for 70 ° C water bath reaction for 1 hour, and magnetic stirring at the same time, then take out the solution and place it at room temperature for aging , inject it into the cartridge of yellow ink when the viscosity reaches 50-60mpa.s. The red ink cartridge is not filled with ink. Print layer by layer according to the color that gradually transitions from yellow to light yellow, and you can get SiO from the inside to the outside. 2 The film layer structure with gradually reduced content is finally heat-treated at 600°C for 60 minutes, so that SiO is obtained from the inside...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
viscosityaaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for preparing an antireflection film having the gradient refractive index based on colour ink-jet printing. The method disclosed by the invention comprises the following steps: preparing ink steady in property and containing SiO2 or capable of being converted into SiO2 through heat treatment and ink containing TiO2 granules and capable of being converted into TiO2 granules through heat treatment, wherein the viscosity of the ink is 20-60 mpa.s; respectively injecting two kinds of ink into an ink box A and an ink box B of different colours, and controlling the contents of SiO2 and TiO2 in each layer of deposited film by adjusting and controlling printing colour through the gradient colour between the two kinds of colours by utilizing a flat colour ink-jet printer; enabling the content of pigment in the ink box A to be continuously decreased progressively and the content of pigment in the ink box B to be continuously increased progressively between every two layers in multi-layer printing, and then, depositing a film of which titanium or silicon is changed in a gradient manner along the thickness direction on a transparent carrier through multi-layer printing; and thermally treating the deposited film at 300-600 DEG C, forming a functional film having component gradient change, and therefore, obtaining a film having the gradient refractive index.

Description

technical field [0001] The invention belongs to the field of optical technology, and relates to a method for preparing a gradient refractive index antireflection film based on color inkjet printing. Background technique [0002] As a new type of clean energy, solar cells have attracted more and more attention. Further improving the conversion efficiency of cells and reducing the cost of power generation of cells have become the key issues to be solved urgently for solar cells. At present, the more commonly used anti-reflection film for solar cell glass cover plate is to use the sol-gel method to coat the anti-reflection film on the glass substrate, which can adjust the refractive index of the film within a certain range, but its control of the refractive index It is realized through the regulation of the colloid composition, and to obtain different refractive indices, it is necessary to prepare colloids with different components. Traditional broadband anti-reflection coatin...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B41M5/00G02B1/11
Inventor 彭坤周灵平朱家俊李德意
Owner HUNAN UNIV