Manufacturing method of heterojunction solar cell and heterojunction solar cell

A technology for solar cells and manufacturing methods, applied in the directions of final product manufacturing, sustainable manufacturing/processing, semiconductor/solid-state device manufacturing, etc., capable of solving the problems of reduced efficiency of heterojunction solar cells

Active Publication Date: 2021-09-10
ANHUI HUASUN ENERGY CO LTD
View PDF12 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the present invention provides a manufacturing method of heterojunction solar cells and heteroj

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
  • Manufacturing method of heterojunction solar cell and heterojunction solar cell
  • Manufacturing method of heterojunction solar cell and heterojunction solar cell
  • Manufacturing method of heterojunction solar cell and heterojunction solar cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] refer to Figure 1-Figure 4 , this embodiment provides a method for manufacturing a heterojunction solar cell, characterized in that it includes:

[0053] The initial solar cell sheet 100 is formed, the initial solar cell sheet has a cutting area X, and the step of forming the initial solar cell sheet 100 includes: providing a semiconductor substrate layer 101 . A first conductivity type semiconductor layer 105 is formed on one side of the semiconductor substrate layer 101 , and the conductivity type of the first conductivity type semiconductor layer 105 is opposite to that of the semiconductor substrate layer 101 . A first transparent conductive layer 107 is formed on a side of the first conductive type semiconductor layer 105 facing away from the semiconductor substrate layer 101 .

[0054] A first cutting groove a penetrating through the thickness of the first transparent conductive layer 107 is formed in the first transparent conductive layer 107 in the cutting reg...

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
Widthaaaaaaaaaa
Lengthaaaaaaaaaa
Widthaaaaaaaaaa
Login to view more

Abstract

The invention provides a manufacturing method of a heterojunction solar cell and a heterojunction solar cell. The manufacturing method comprises the following steps that: an initial solar cell is formed, the initial solar cell is provided with a cutting area, the formation of the initial solar cell further comprises the following steps of forming a first conductive type semiconductor layer on one side of a semiconductor substrate layer, forming a first transparent conductive layer on one side, back to the semiconductor substrate layer, of the first conductive type semiconductor layer, forming a first cutting groove in the first transparent conductive layer of the cutting area, making the bottom of the first cutting groove expose the first conductive type semiconductor layer; and the initial solar cell is cut along the cutting area, and the width of the first cutting groove is larger than the cutting width of the initial solar cell in the step of cutting the initial solar cell along the cutting area. The method can effectively avoid reduction of photoelectric conversion efficiency caused by cutting.

Description

technical field [0001] The invention relates to a solar cell cutting technology, in particular to a method for manufacturing a heterojunction solar cell and the heterojunction solar cell. Background technique [0002] Solar cells have the advantages of clean and pollution-free, renewable, and stable working performance. Solar cells, also known as photovoltaic cells, use the photovoltaic effect at the semiconductor interface to directly convert the energy of sunlight into electrical energy. During the conversion process, electron-hole pairs are generated by absorbing light, and the electron-hole pairs are separated or diffused to realize the transmission of generating current. According to different structures and manufacturing processes, solar cells are divided into different types. For solar cells based on crystalline silicon, semiconductor layers and electrodes are prepared on one or both sides of the substrate to form cells, and then multiple cells are welded for series...

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): H01L31/18H01L31/072H01L31/0224H01L21/78
CPCH01L31/1804H01L31/1888H01L21/78H01L31/072H01L31/022466H01L31/022425Y02P70/50Y02E10/547
Inventor 王文静张良徐晓华周肃龚道仁辛华伟郭琦
Owner ANHUI HUASUN ENERGY CO LTD
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