Method for manufacturing window layers of copper, zinc, tin and sulfur solar cells

A solar cell, copper-zinc-tin-sulfur technology, applied in circuits, electrical components, final product manufacturing, etc., to achieve the effects of good electrical properties, high adhesion strength, and easy-to-control film thickness

Inactive Publication Date: 2013-08-07
SHANGHAI UNIV
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, no hydrothermal preparation of ZnOZnS nanoarray core-shell s

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
  • Method for manufacturing window layers of copper, zinc, tin and sulfur solar cells
  • Method for manufacturing window layers of copper, zinc, tin and sulfur solar cells
  • Method for manufacturing window layers of copper, zinc, tin and sulfur solar cells

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0021] Example 1

[0022] A method for preparing the window layer of a copper-zinc-tin-sulfur solar cell uses a spin coating method to prepare ZnO nano-array seed crystals, uses a hydrothermal method to grow ZnO nano-arrays, and uses a hydrothermal method to vulcanize to grow a ZnS shell structure. It has the following process and step:

[0023] a) Cleaning the glass substrate: Perform surface cleaning treatment on the glass slides, and put them in Triton aqueous solution, acetone solution, absolute alcohol solution and deionized water for 15 minutes each in order, and then dry the slides.

[0024] b) Preparation of ZnO nano-array seed crystals: ZnO seed crystals are prepared by spin coating method. Ethanolamine and zinc acetate are dissolved in ethanol, the concentration is 0.05mol / L, and the ultrasonic is uniform. Put the glass slide substrate into the homogenizer, drop the seed solution on the substrate with a dropper, rotate at 1000 r / min, and spin coating time for 30 seconds,...

Example Embodiment

[0027] Example 2

[0028] The operation steps of this embodiment are basically the same as those of embodiment 1, except that the TAA concentration of the growth solution in step d) is 0.15 mol / L. Figure 4 It is a scanning electron microscope image. The top of the nanorods is hexagonal prism with a diameter of about 90nm.

Example Embodiment

[0029] Example 3

[0030] The operation steps of this embodiment are basically the same as those of embodiment 1, except that the TAA concentration of the growth solution in step d) is 0.25 mol / L. Figure 5 It is a scanning electron microscope image. The top of the nanorods is hexagonal prism with a diameter in the range of 120-140nm.

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

No PUM Login to view more

Abstract

The invention discloses a method for manufacturing window layers of copper, zinc, tin and sulfur solar cells, and belongs to the technical field of processes for manufacturing thin-film devices of solar cells. The method is characterized by comprising steps of manufacturing a ZnO seed crystal by means of magnetron sputtering; growing a ZnO nano-array by a hydrothermal process; and vulcanizing and growing a ZnS shell structure by the hydrothermal process. The method has the advantages that the adhesive strength of a substrate and a ZnO@ZnS nano-array shell structure manufactured by the hydrothermal process is high, the ZnO@ZnS nano-array shell structure is high in transmittance and excellent in electrical property and can be used as a window layer of a CZTS (copper, zinc, tin and sulfur) solar cell, and the method can be excellently connected with a follow-up process for manufacturing the cell.

Description

technical field [0001] The invention relates to a method for preparing a window layer of a copper-zinc-tin-sulfur solar cell, belonging to the technical field of solar cell thin film device preparation technology. Background technique [0002] Zinc oxide (ZnO) is a II-VI wide bandgap oxide semiconductor material with a bandwidth of about 3.37eV. It exhibits good n-type semiconductor performance and has good optoelectronic properties. ZnO has the characteristics of low preparation cost and low growth temperature, which is beneficial to reduce equipment cost, inhibit solid phase outdiffusion, improve film quality, and is easy to achieve doping. At the same time, the ZnO thin film is rich in raw materials, non-toxic, and has no pollution to the environment. It is an environmentally friendly material. Based on these excellent properties, ZnO can be used as a window material for solar cells. [0003] Zinc sulfide (ZnS) is also a wide-bandgap semiconductor material with a bandgap...

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): H01L31/18C03C17/22
CPCY02P70/50
Inventor 李季戎史伟民廖阳钱隽王国华杨伟光沈心蔚沈介圣何玲玲沈忠文
Owner SHANGHAI UNIV
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