A kind of flexible thin film solar cell and preparation method thereof

Abstract

The invention discloses a preparing method of a flexible thin film solar cell. The preparing method includes the steps that a first transparent conducting layer is formed on flexible glass fixed to a glass carrier, and a first opening is formed in the first transparent conducting layer; an emitting electrode thin film covering the first opening is formed on the first transparent conducting layer, and a second opening is formed; a second transparent conducting layer covering the second opening is formed on the emitting electrode thin film, and third openings are formed in the second transparent conducting layer and the emitting electrode thin film; a first flexible bonding layer is formed on the second transparent conducting layer; a first flexible thin plate is formed on the first flexible bonding layer; the structure is packaged, and the glass carrier is removed after packaging is conducted. Accordingly, the invention further provides the flexible thin film solar cell prepared through the preparing method. By means of the technical scheme, the debris rate of flexible thin film solar cell preparation can be effectively decreased, production efficiency is improved, and cell strength is enhanced.

Description

technical field [0001] The invention belongs to the field of thin-film solar cell manufacture, and in particular relates to a flexible thin-film solar cell and a preparation method thereof. Background technique [0002] With the popularization of the concept of energy conservation and environmental protection and the rapid development of the photovoltaic field, the technology of generating electricity with solar cells has continued to advance, and the development of thin-film solar cells, especially flexible thin-film solar cells, has made significant progress. However, the substrates of existing flexible thin-film solar cells are mostly impermeable materials. During the preparation process, it is difficult to realize the structure of multiple cells connected in series on the same substrate, and only a single flexible cell structure can be made. In this way, in practical applications, it is necessary to connect individual batteries in series to increase the operating voltage...

AI Technical Summary

Problems solved by technology

However, plastics with high permeability, such as PET, PE and other plastics, are generally difficult to withstand high temperatures of 200 ° C, so it is difficult to apply in silicon-based thin film batteries

And high-temperature-resistant plastics, such as PI, will obviously absorb laser light with a specific wavelength. For example, the absorption rate for a wavelength of 355nm can reach more than 85%. the role of

[0005] Therefore, under the premise that there is no flexible material with high temperature resistance and high light transmittance, or there is no new effective insulation technology for the TCO conductive layer in the silicon-based thin film battery process, flexible and multi- Thin-film battery assemblies with cells in series present enormous challenges

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