Laser scribing method of transparent thin film solar cell

Abstract

The invention relates to a laser scribing method of a transparent thin film solar cell. In recent years, environmental awareness occurs, all countries bring out various kinds of environmental friendly energy resource concepts and novel thoughts, wherein one kind is to use a solar cell, and environmental friendly energy resources are provided as follows: a building integrated photovoltaics (BIPV) scheme, and the thin film solar cell is prepared from components such as a transparent substrate, a transparent conduction film, an amorphous silicon membrane, a microcrystalline silicon membrane, a transparent back electrode membrane and a transparent back plate, wherein the transparent substrate can be made of glass, quartz, single crystal aluminum oxide, transparent plastics or flexible transparent materials, and is used for carrying out pot scribing on each single thin film solar cell by using laser, the scribing depth is determined by sing the amorphous silicon membrane and the transparent back electrode membrane, the transparent conduction membrane is not scribed so that the light transmittance is increased, a current conduction function is remained for completing the preparation of the transparent thin film solar cell, and a Laser scribing point can be circular or square and the like, can be different in forms and quantity, and can have different patterns and different transmittances. On the demand of meeting power and transmittance, a laser scribing method of the transparent thin film solar cell is added, and the requirement of a transparent thin film solar cell module in the industry is achieved.

Description

Technical field: [0001] The invention relates to a new type of battery technology, which is applicable to a light-permeable thin-film solar cell module, and aims to improve the light transmittance and visibility of the thin-film solar cell module. Background technique [0002] In recent years, the awareness of global environmental protection has risen and the energy crisis is a problem. Countries have introduced various environmentally friendly energy concepts and novel ideas, and one of them is the use of solar cells to provide environmentally friendly energy. Utilizing the renewable resource solar energy, under the novel concept of no secondary pollution such as waste water, waste gas, waste residue, etc. in the power generation process, even actively launched the "Solar Photovoltaic-Building Integrated Method (BIPV)" program , and then promote the large-scale development and application of optoelectronic industry technology. Among them, thin-film solar cells are the prod...

AI Technical Summary

Problems solved by technology

Among them, thin-film solar cells are the product of this idea. Thin-film solar cells are molded in a large area, but due to the characteristics of the materials of each layer and mutual stacking, the effect of light transmission is not good, and the usable range is limited.

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