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Production method and production system of cadmium telluride solar cell

A technology of solar cells and production systems, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of inability to realize customized production and difficulty in controlling the quality of glass cleaning, and achieve the goal of controlling production costs, reducing logistics costs, and meeting demands Effect

Inactive Publication Date: 2018-11-23
CNBM CHENGDU OPTOELECTRONICS MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a preparation method and production system of cadmium telluride solar cells, which solves the problems that the quality of glass cleaning in traditional processes is difficult to control and cannot realize customized production

Method used

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  • Production method and production system of cadmium telluride solar cell
  • Production method and production system of cadmium telluride solar cell

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preparation example Construction

[0026] A preparation method of a cadmium telluride solar cell comprises the following steps in sequence: production of FTO glass, production of a cadmium telluride solar cell and packaging production.

[0027] According to the production characteristics of the three-stage process separated by the traditional process, the present invention connects them. Since the FTO production is a relatively typical float glass production line, its production capacity is generally large, so the FTO production line can be followed by multiple cadmium telluride solar panels. The battery production line and the cadmium telluride solar cell production line can also be connected with multiple packaging production lines to form a production mode of one kiln and multiple lines.

[0028] The production of the FTO glass includes: batching, melting, molding, FTO film coating, and detection 1 in sequence.

[0029] Different from the general FTO production line, the FTO glass production of the present i...

Embodiment 1

[0061] A method for preparing a cadmium telluride solar cell, comprising the following steps in sequence: production of FTO glass, production of a cadmium telluride solar cell, and packaging production;

[0062] The production of FTO glass includes: batching, melting, molding, FTO coating, and inspection 1;

[0063] The production of cadmium telluride solar cells includes: CdS film coating, CdTe film coating, 400°C heating activation, magnetron sputtering to prepare molybdenum nitride back contact layer, cutting, and laser etching for the first time using a laser with a wavelength of 1064nm , photoresist filling, exposure curing photoresist, using a 532nm wavelength laser for the second laser etching, evaporation to prepare a nickel film back electrode, using a 532nm wavelength laser for the third laser etching, using a 1064nm wavelength laser Laser for the fourth laser etching;

[0064] Packaging production includes: inspection 2, edge grinding, packaging with POE film and s...

Embodiment 2

[0066] A method for preparing a cadmium telluride solar cell, comprising the following steps in sequence: production of FTO glass, production of a cadmium telluride solar cell, and packaging production;

[0067] The production of FTO glass includes: batching, melting, molding, FTO coating, and inspection 1;

[0068] The production of cadmium telluride solar cells includes: CdS film coating, CdTe film coating, heating activation at 400°C, magnetron sputtering to prepare molybdenum nitride back contact layer, laser etching with a wavelength of 1064nm for the first time, photolithography Glue filling, exposure curing photoresist, second laser etching with 532nm wavelength laser, evaporation to prepare nickel thin film back electrode, third laser etching with 532nm wavelength laser, cutting, and 1064nm wavelength laser Laser for the fourth laser etching;

[0069] Packaging production includes: inspection 2, edge grinding, packaging with POE film and soda-lime glass, final inspect...

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Abstract

The invention discloses a production method and production system of a cadmium telluride solar cell. The production method comprises the steps of FTO glass production, cadmium telluride solar cell production and package production. The production system comprises an FTO glass production section, a cadmium telluride solar cell production section and a package production section to form a one-kiln and multi-line production mode, a cutting process is put on the cadmium telluride solar cell production section and cutting is carried out according to the requirements, so that customized production is achieved and the production cost is reduced.

Description

technical field [0001] The invention relates to the field of solar cell processing, in particular to a preparation method and production system of a cadmium telluride solar cell. Background technique [0002] Cadmium telluride thin-film solar cell is a kind of compound semiconductor thin-film solar cell with CdTe as the absorbing layer. It has the characteristics of high conversion efficiency, high reliability and low cost. It has become one of the most promising thin-film photovoltaic devices recognized by people. one. At present, it has achieved a conversion efficiency of 22.1% for small-area cells and 18.6% for modules, making it the most successful thin-film photovoltaic product on the market. [0003] At present, the main production methods of cadmium telluride solar cell modules are: purchasing TCO conductive glass, cleaning, coating, activation, laser scribing, back electrode preparation, edge cleaning, leading wires, encapsulation, testing and packaging in sequence....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/18H01L31/073
CPCH01L31/073H01L31/1836Y02E10/543Y02P70/50
Inventor 彭寿马立云潘锦功殷新建蒋猛李飏王彦珏
Owner CNBM CHENGDU OPTOELECTRONICS MATERIAL
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