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Device and method for efficient roll-to-roll preparation of cadmium sulfide thin film

A cadmium sulfide, roll-to-roll technology, applied in gaseous chemical plating, final product manufacturing, sustainable manufacturing/processing, etc., can solve problems such as incoherent steps, discontinuous production of cadmium sulfide buffer layer film, and low efficiency. Achieve the effects of improving production efficiency, simple structure, and uniform film quality

Active Publication Date: 2014-07-02
SOUTH CHINA UNIV OF TECH
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Problems solved by technology

[0005] Aiming at the technical problems of discontinuous production, incoherent steps and low efficiency in the preparation of cadmium sulfide buffer layer films in the prior art, the purpose of the present invention is to provide a high-quality, high-efficiency, continuous, low-cost, industrialized Apparatus and method for efficiently preparing cadmium sulfide thin film by mode roll-to-roll

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  • Device and method for efficient roll-to-roll preparation of cadmium sulfide thin film

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Embodiment Construction

[0023] The present invention will be further described in detail in conjunction with the accompanying drawings and specific embodiments.

[0024] figure 1 As shown, a device for efficiently preparing cadmium sulfide film roll-to-roll includes: a conveying mechanism for flatly conveying a flexible substrate, a deposition box for deposition reaction, a solution heating circulation mechanism connected to the deposition box, and a scrubbing lining. The roller washing mechanism at the bottom and the drying device for drying the substrate; the deposition box, the roller washing mechanism and the drying device are arranged in sequence along the conveying direction of the substrate.

[0025] The conveying mechanism includes: a reel located at the beginning and end of the substrate conveying route to wind the substrate into a roll, a plurality of guide rollers located in the substrate conveying route to guide the conveying direction of the substrate, and position the substrate Multipl...

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Abstract

The invention relates to a device for efficient roll-to-roll preparation of a cadmium sulfide thin film. The device comprises a conveying mechanism for flatly conveying a flexible substrate, a deposition box for carrying out a deposition reaction, a solution heating circulating mechanism connected with the deposition box, a cylinder washing / brushing mechanism for washing and brushing the substrate, and a drying device for drying the substrate, wherein the deposition box, the cylinder washing / brushing mechanism and the drying device are orderly arranged in the conveying direction of the substrate. The invention also relates to a method for the efficient roll-to-roll preparation of the cadmium sulfide thin film. The method comprises the steps of unfolding the substrate, preparing a solution, heating the solution, reacting for deposition, conveying the substrate, cleaning the substrate, conveying the clean substrate, drying the surface and reeling the substrate. The device and the method have the advantages of simple structure, and achievable continuous large-batch production, and belong to the technical field of the thin-film solar cell manufacturing process.

Description

technical field [0001] The invention relates to a thin film solar cell manufacturing process, in particular to a roll-to-roll preparation device and method for preparing a cadmium sulfide buffer layer film of a flexible copper indium gallium selenium thin film solar cell. Background technique [0002] Copper indium gallium selenide (CIGS) thin-film solar cells are regarded as one of the most promising types of thin-film solar cells in the future because of their high conversion efficiency and low material manufacturing costs. CIGS thin film solar cell is a thin film cell with layered structure, generally composed of substrate, back electrode, CIGS absorber layer, buffer layer, transparent conductive oxide layer and front metal electrode, among which the function of buffer layer is to communicate with P A type of CIGS absorber forms a P-N junction to separate photogenerated carriers. At present, there are materials such as CdS, ZnS, and Zn(O, S, OH) for the buffer layer, but...

Claims

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Application Information

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IPC IPC(8): C23C16/54C23C16/30H01L31/18
CPCY02P70/50
Inventor 汤勇黄云翔杨晓军曾海峰钟福回孙超卫
Owner SOUTH CHINA UNIV OF TECH
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