Colored solar battery sheet, preparation method, battery module and pecvd equipment

Abstract

The invention relates to the technical field of solar cell production, in particular to the technical field of manufacturing of solar cell pieces and modules, specifically discloses a manufacturing method of a colorful solar cell piece, the colorful solar cell piece manufactured by adopting the method and a colorful solar cell module including the colorful solar cell piece and further discloses a PECVD device for colorful film coating. The colorful solar cell piece having different colors internally can be obtained by improving a PECVD special gas pipeline, adopting misplaced special gas pipelines different in special gas flow and adjustable in flow and depositing silicon nitride antireflection films different in thickness on the front side of a crystal silicon wafer, the internal colors of the cell piece can be designed and customized, an appearance effect is good, and the colorful solar cell piece has the advantages of being simple in operation and high in production efficiency.

Description

technical field [0001] The invention relates to the technical field of solar cell production, in particular to the technical field of preparation of solar cells and modules. Background technique [0002] The solar cell module mainly includes the main solar cell for power generation, the transparent tempered glass above the light-receiving surface of the solar cell and the back sheet (such as TPT, TPE) under the back of the solar cell. Both the tempered glass and the back sheet pass EVA and solar energy. The battery sheet is bonded and fixed. [0003] In the prior art, solar cells are mainly crystalline silicon solar cells, including monocrystalline silicon solar cells and polycrystalline silicon solar cells, and their preparation methods mainly include texturing, diffusion, etching, coating, screen printing and sintering, wherein Coating refers to depositing a silicon nitride film on the front of the silicon wafer as an anti-reflection film layer, which plays the role of an...

AI Technical Summary

Problems solved by technology

[0007] The Chinese patent with the application number CN201010296313.8 discloses a method for preparing colored solar cells. This method is to add a baffle in front of the silicon wafer during the process of coating the silicon wafer with an anti-reflection film, and control the anti-reflection of the silicon wafer surface. The thickness of the film changes, so that the cells show different colors, forming colored cells of different colors in the cell. However, in this method, the adjustment of the baffle is inconvenient, and the controllability of the film thickness corresponding to different colors is poor. Different colors in the cell cannot be adjusted. On-demand customization, low production efficiency

[0008] The Chinese patent with the application number CN201610211169.0 discloses another method for preparing colored solar cells, which is to obtain colored cells by making textured textures on the anti-reflection film with deviations in the amount of corrosion. However, the effect of textured textures is uncontrollable. Colored batteries have poor color regularity, poor controllability and unsightly appearance

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