Broadband double-layer anti-reflection coating capable of improving efficiency of solar cell and preparation method thereof

A solar cell and broadband technology, applied in circuits, photovoltaic power generation, electrical components, etc., can solve problems such as poor anti-reflection effect, and achieve the effects of firm bonding, improved efficiency, and improved preparation methods.

Active Publication Date: 2020-12-04
WUHAN UNIV OF TECH
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the above-mentioned technical deficiencies, to propose a wide-band double-layer anti-reflection coating and its preparation method to improv

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
  • Broadband double-layer anti-reflection coating capable of improving efficiency of solar cell and preparation method thereof
  • Broadband double-layer anti-reflection coating capable of improving efficiency of solar cell and preparation method thereof
  • Broadband double-layer anti-reflection coating capable of improving efficiency of solar cell and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0025] see figure 1 , the second aspect of the present invention provides a preparation method of a broadband double-layer anti-reflection coating for improving the efficiency of solar cells, comprising the following steps:

[0026] S1: Coat the bottom anti-reflection coating on the surface of the substrate, and form the bottom anti-reflection coating after curing;

[0027] S2: The top anti-reflection coating is coated on the surface of the bottom anti-reflection coating, and after curing, a broadband double-layer anti-reflection coating that improves the efficiency of the solar cell is obtained.

[0028] In this embodiment, the curing temperature is 40-60° C., preferably 45-55° C.; the curing time is 30-60 s, preferably 30-40 s.

[0029] In this method, the substrates used are glass, silicon wafers, optical devices and the like.

[0030] The preparation method of the broadband double-layer anti-reflection coating for improving solar cell efficiency provided by the second as...

Example Embodiment

[0032] Example 1

[0033] Synthesis of bottom anti-reflection coating: take 2 mL of isopropanol and 50 μL of hydrochloric acid with a molar concentration of 0.1 mol / L, then add 200 μL of TEOS, and stir at room temperature for 2 hours to obtain the bottom anti-reflection coating. During this process, the concentration of linear silica polymer in the resulting primer anti-reflection coating was 4.6 wt%.

[0034] Synthesis of bottom anti-reflection coating: mixing modified mesoporous silica dispersion and fluorinated silica polymer solution in a volume ratio of 2:1 to obtain bottom anti-reflection coating; wherein,

[0035] The modified mesoporous silica dispersion was obtained by the following steps: take 15 g of CTAB solution with a mass concentration of 2.5 wt % and 600 μL of TEA solution with a mass concentration of 10 wt % into a 30 mL round-bottomed flask, magnetic stirring and mixing, and heating in an oil bath at the same time to 70 °C, then add 1.2 mLTEOS, stir the reac...

Example Embodiment

[0038] Example 2

[0039] Synthesis of bottom anti-reflection coating: take 2 mL of isopropanol and 40 μL of hydrochloric acid with a molar concentration of 0.1 mol / L, then add 100 μL of TEOS, and stir at room temperature for 1 hour to obtain the bottom anti-reflection coating. During this process, the concentration of linear silica polymer in the resulting primer anti-reflection coating was 2.3 wt%.

[0040] Synthesis of the bottom anti-reflection coating: mixing the modified mesoporous silica dispersion and the fluorinated silica polymer solution in a volume ratio of 4:1 to obtain the bottom anti-reflection coating; wherein,

[0041] The modified mesoporous silica dispersion was obtained by the following steps: take 8 g of CTAB solution with a mass concentration of 2.5 wt % and 400 μL of TEA solution with a mass concentration of 10 wt % into a 30 mL round-bottomed flask, magnetic stirring and mixing, and heating in an oil bath at the same time To 65°C, add 1.2 mLTEOS again,...

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
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to view more

Abstract

The invention discloses a broadband double-layer anti-reflection coating for improving the efficiency of a solar cell and a preparation method of the broadband double-layer anti-reflection coating. The broadband double-layer anti-reflection coating capable of improving the efficiency of the solar cell comprises a bottom anti-reflection coating and a top anti-reflection coating, the bottom anti-reflection coating is formed by curing a bottom anti-reflection coating containing a linear silicon dioxide polymer; and the top anti-reflection coating is formed by curing a top anti-reflection coatingformed by mixing a modified mesoporous silica dispersion liquid and a fluorinated silica polymer solution. The broadband double-layer anti-reflection coating capable of improving the solar cell efficiency can achieve a better anti-reflection effect in visible light full wave bands, can be firmly bonded with a glass substrate, has better hydrophobicity and durability, and can effectively improve the efficiency of various different solar cell devices. The preparation method of the broadband double-layer anti-reflection coating capable of improving the efficiency of the solar cell is simple and good in repeatability.

Description

technical field [0001] The invention relates to the technical field of optical coating preparation, in particular to a broadband double-layer anti-reflection coating for improving solar cell efficiency and a preparation method thereof. Background technique [0002] As the most promising way to utilize clean energy, solar cells have been widely studied in the fields of scientific research and industrial production. In addition to silicon solar cells with the highest degree of commercialization, organic cells and perovskite cells have also attracted widespread attention due to their rapid development. Among them, how to improve the energy conversion efficiency of solar cells is the first problem for scientists. [0003] On the one hand, scientists start from chemical molecular design to find new active layer materials or adopt interface modification to reduce defects or suppress energy loss in devices. Although there have been some encouraging reports, the loss of light refl...

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
IPC IPC(8): H01L31/0216H01L31/18
CPCH01L31/02168H01L31/18Y02E10/50
Inventor 王涛王卉刘丹
Owner WUHAN UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap