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

A kind of cadmium telluride solar cell and preparation method thereof

A solar cell, cadmium telluride technology, applied in circuits, electrical components, photovoltaic power generation and other directions, can solve the problems of increasing the light absorption loss of the cadmium sulfide layer, and achieve improved yield and repeatability, low temperature, and improved stability. Effect

Active Publication Date: 2018-12-04
PEKING UNIV SHENZHEN GRADUATE SCHOOL
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, both methods increase the light absorption loss in the cadmium sulfide layer at the same time

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
  • A kind of cadmium telluride solar cell and preparation method thereof
  • A kind of cadmium telluride solar cell and preparation method thereof
  • A kind of cadmium telluride solar cell and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented and applied through other different specific implementation modes, and various details in this specification can also be applied based on different viewpoints, and various modifications or changes can be made without departing from the spirit of the present invention.

[0032] The structure diagram of the cadmium telluride solar cell device of the present invention is as figure 1 As shown, it contains a substrate layer 1, a titanium oxide film buffer layer 3, a cadmium sulfide film layer 4, a cadmium telluride film layer 5, and a back electrode 6. The substrate is soda-lime glass, and the surface of the substrate has fluorine-doped Hybrid tin oxide transparent conductive layer 2 .

[0033]...

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 cadmium telluride solar cell, and a titanium oxide film buffer layer is deposited on a surface of the substrate. A titanium oxide (TiO<2>) film contained in the cadmium telluride solar cell as a buffer layer solves a shunting problem, the yield rate and repeatability of a cadmium telluride / cadmium sulfide photovoltaic device are improved, and performance of the a cadmium sulfide / cadmium telluride device is effectively improved. The invention further discloses a preparation method of the cadmium telluride solar cell. Cadmium sulfide and cadmium telluride are obtained through chemical bath deposition (CBD) and electrochemical deposition (ED), and 6.1% conversion efficiency is obtained through FTO / CdS / CdTe / Au structure without any back contact resistance optimization condition.

Description

technical field [0001] The invention relates to thin-film photovoltaic technology, in particular to a cadmium telluride solar cell containing a titanium oxide thin-film buffer layer and a preparation method thereof. Background technique [0002] Polycrystalline cadmium sulfide / cadmium telluride (CdS / CdTe) is one of the most important thin-film photovoltaic material systems. In 2014, certified cadmium telluride solar cells had an energy conversion efficiency of 21.5% (First Solar), which is very close to the record of 21.7% for a single solar cell set by copper indium gallium selenide (CIGS) thin film solar cells. In addition, as a binary compound, CdTe thin films have the characteristics of simpler preparation and better reproducibility. These facts show the potential of CdTe thin film photovoltaic technology. [0003] At present, the mainstream cadmium telluride deposition method requires high temperature and low vacuum equipment, which not only increases the production c...

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 Patents(China)
IPC IPC(8): H01L31/0216H01L31/073H01L31/18
CPCH01L31/02167H01L31/073H01L31/1828Y02E10/543Y02P70/50
Inventor 范智勇何进
Owner PEKING UNIV SHENZHEN GRADUATE SCHOOL