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

Crystal-silicon solar cell with transparent electrodes

A technology of solar cells and transparent electrodes, applied in circuits, electrical components, photovoltaic power generation, etc., to achieve the effect of increasing the output power of batteries

Active Publication Date: 2013-05-22
DONGFANG ELECTRIC CORP LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process is not suitable for the practice of transparent electrodes

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
  • Crystal-silicon solar cell with transparent electrodes
  • Crystal-silicon solar cell with transparent electrodes
  • Crystal-silicon solar cell with transparent electrodes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] Such as Figure 1-3 As shown, taking the P-type monocrystalline silicon wafer as the battery substrate as an example, the present invention is implemented in combination with the following methods:

[0036] Step 1: After the silicon wafer is cleaned, the surface is subjected to alkaline etching to prepare a textured surface.

[0037] Step 2: Diffusion of phosphorus on the surface of the silicon wafer by liquid source diffusion, the diffusion depth is 300~500nm, and then trimming and cleaning to remove PSG.

[0038] Step 3: Print the aluminum back field and use aluminum as the metal back electrode.

[0039] Step 4: Under the protection of argon atmosphere, sinter at 600~800°C to activate doping elements to form P + PN + battery structure.

[0040] Step 5: At room temperature (25°C), place doped or alkali metal carbonate-treated graphene on N by covering mask printing or spraying. + layer. The graphene transparent electrode prepared under the action of the mask has ...

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
Login to View More

Abstract

The invention discloses a crystal-silicon solar cell with transparent electrodes, wherein the transparent electrodes are composed of graphene. The graphene is prepared through a chemical vapor deposition method or a micro-machine stripping method and placed between a crystal-silicon solar cell PN junction and a silicon nitride layer. By adjusting the grid line structure and thickness of the transparent electrodes, the effective area of shining light of a single-chip solar cell is raised to improve output power simultaneously, meanwhile, the battery efficiency is guaranteed. The transparent electrodes are ideal transparent electrodes of crystal-silicon solar cell.

Description

technical field [0001] The invention belongs to the technical field of solar energy manufacturing, and in particular relates to a crystalline silicon solar cell with a transparent electrode. Background technique [0002] As the world's energy and environmental issues become increasingly prominent, solar cell technology has become one of the key development directions for new energy technologies. At present, the leading products in the solar cell market are still monocrystalline silicon solar cells and polycrystalline silicon solar cells, which have been widely used in large and medium-sized solar power plants. At present, the monocrystalline efficiency of crystalline silicon cells can reach up to 25% in the laboratory, and the mass production efficiency is about 18.0-18.5%. The laboratory efficiency of polysilicon cells can reach up to 20.4%, and the mass production efficiency is about 17.0-17.4%. [0003] The electrodes of crystalline silicon solar cells play the role of ...

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): H01L31/0224H01L31/068
CPCY02E10/50Y02E10/546
Inventor 黄添懋张中伟李愿杰张小宾袁小武江瑜廖亚琴胡强张世勇侯泽荣程鹏飞
Owner DONGFANG ELECTRIC CORP LTD