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

Solar cell and preparation method thereof

A solar cell and silver electrode technology, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems affecting the photoelectric conversion efficiency of solar cells and the decline of silver electrode conductivity, achieve a constant deposition rate, improve conductivity, and ensure conductivity sexual effect

Inactive Publication Date: 2014-12-10
GUANGDONG AIKO SOLAR ENERGY TECH CO LTD
View PDF1 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These voids lead to a decrease in the conductivity of the silver electrode, which in turn affects the photoelectric conversion efficiency of the solar cell

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
  • Solar cell and preparation method thereof
  • Solar cell and preparation method thereof
  • Solar cell and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings.

[0036] See figure 1 , figure 1 An existing solar cell is shown. The solar cell includes P-type silicon 1, and an N-type emitter 2 is formed on the front side of the P-type silicon 1 by diffusion, and the front side of the N-type emitter 2 is provided with a passivation film 3. The front surface of the passivation film 3 is provided with a positive electrode 4, the positive electrode 4 is a silver electrode, the back of the P-type silicon 1 is provided with a back passivation layer 5, and the back passivation layer 5 is provided with a back Electric field 6 and back electrode 7.

[0037] Wherein, the positive electrode 4 is a silver electrode.

[0038] In the existing solar cell, after the positive electrode is printed, the silicon wafer is dried and sintered in a sin...

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
Current densityaaaaaaaaaa
Current densityaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a solar cell. The solar cell comprises P type silicon, an N type emitter is formed on the front surface of the P type silicon through diffusion, the front surface of the N type emitter is provided with a passivation film, the front surface of the passivation film is provided with a positive electrode which is a silver electrode, the back surface of the P type silicon is provided with a back passivation layer, the back passivation layer is provided with a back electric field and a back electrode, the silver electrode is electroplated with at least one silver layer, and the silver layer covers the silver electrode. Accordingly, the invention also provides a method of preparing the solar cell. The solar cell is simple in structure, the silver layer can fill voids in the surface of the silver electrode, so that the void ratio of the silver electrode of a traditional solar cell is effectively reduced, the conductivity of the silver electrode is improved, and further the photoelectric conversion efficiency of the cell is enhanced.

Description

Technical field [0001] The invention relates to the technical field of batteries, in particular to a solar battery and a preparation method thereof. Background technique [0002] A solar cell is a device that effectively absorbs solar radiation energy and uses the photovoltaic effect to convert light energy into electrical energy. When the sun shines on the semiconductor PN junction (PN Junction), a new hole-electron pair (VE pair) is formed. ), under the action of the electric field of the PN junction, holes flow from the N area to the P area, and electrons flow from the P area to the N area, and a current is formed after the circuit is turned on. [0003] The manufacturing process of crystalline silicon solar cells has 6 processes, namely texturing, diffusion, dephosphorization silicon glass and back junction, coating, screen printing, and sintering. The screen printing process is divided into three steps: back silver printing, back aluminum printing and positive silver printing...

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): H01L31/0224H01L31/04H01L31/18
CPCH01L31/022425Y02E10/50Y02P70/50
Inventor 方结彬秦崇德石强黄玉平何达能陈刚
Owner GUANGDONG AIKO SOLAR ENERGY TECH CO LTD
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