Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Biomimetic antireflection film of solar cell and preparation method thereof

A technology of solar cells and anti-reflection films, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of complex process, silicon wafer damage, and unsatisfactory anti-reflection efficiency.

Inactive Publication Date: 2010-10-20
HOHAI UNIV CHANGZHOU
View PDF7 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the anti-reflection layer structure of the prior art solar silicon crystal cell, such as coating film (such as Al 2 o 3 Coating layer, SiO coating layer and SiN passivation film, etc.) anti-anti-reflection layer, its preparation method all adopts vacuum sputtering deposition technology, which is not only complicated process, large power consumption, high preparation cost, but also its anti-reflection efficiency Still not ideal, especially for silicon crystalline cells, where damage to the wafer is inevitable with this preparation method

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
  • Biomimetic antireflection film of solar cell and preparation method thereof
  • Biomimetic antireflection film of solar cell and preparation method thereof
  • Biomimetic antireflection film of solar cell and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0033] The second specific implementation mode, as attached Figure 1~3 shown.

[0034] A method for preparing a bionic anti-reflection film for a solar cell, using organisms as an embossed master blank, rubber and plastics as a base film material for a bionic anti-reflection film, and rubber and plastics as a raw material for a bionic anti-reflection film master mold. The preparation method comprises the following steps:

[0035] a. Select the complete biological cicada wing as the embossed mother blank, and clean it;

[0036] b. Use the bio-imprint master blank processed in step a to emboss rubber and plastic, with an embossing temperature of 150-185°C, a pressure of 490-510N, and an embossing time of 90-110S to obtain a rubber-plastic bionic master blank mold (i.e. female mold);

[0037] c. Mix the rubber-plastic prepolymer used as the biomimetic antireflection film with a curing agent in a ratio of 10:1 by weight or directly dissolve it in a solvent to prepare a biomime...

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
solar absorptanceaaaaaaaaaa
reflectanceaaaaaaaaaa
Login to View More

Abstract

The invention discloses a biomimetic antireflection film of a solar cell, and a preparation method thereof; the biomimetic antireflection film is characterized in that the biomimetic antireflection film comprises a substrate film, and one surface of the substrate film is provided with a biomimetic antireflection layer which simulates and copies a biological surface three-dimensional micro-nano composite structure, is integrated with the substrate film and has the same material as the substrate film; and the preparation method is characterized by comprising the following steps: selecting a biological imprint mother blank, preparing a biomimetic mother blank mould, preparing biomimetic antireflection film material, spin coating or casting the reflection film material, stripping and preparing the biomimetic antireflection film. The biomimetic antireflection film of the solar cell is characterized by advanced structure, low manufacturing cost, convenient use, excellent antireflection performance and the like, and is an biomimetic antireflection functional film capable of effectively improving the photovoltaic conversion effect of a solar silicon crystal cell.

Description

technical field [0001] The invention relates to a solar cell bionic anti-reflection film and a preparation method thereof, belonging to the technical field of solar cell energy. Background technique [0002] A solar cell is a photoelectric energy conversion device that converts solar energy into electrical energy. [0003] Solar silicon crystal cell power generation is a power generation method that uses solar cells to absorb sunlight with a wavelength of 0.4um to 1.1um, and directly converts light energy into electrical energy output. How to maximize the photoelectric conversion efficiency directly determines the development of the solar energy industry, and how to improve the photoelectric conversion efficiency depends on how to minimize the reflection of silicon crystals on sunlight. Therefore, it is very important to add anti-reflection structures on the surface of the silicon wafer to reduce its reflectivity. [0004] However, the anti-reflective layer structure of th...

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 Applications(China)
IPC IPC(8): H01L31/0232H01L31/0236H01L31/18H01L31/054
CPCY02E10/50Y02P70/50
Inventor 孙洪文
Owner HOHAI UNIV CHANGZHOU
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com