Technology for improving photoelectric conversion rate of conductive substrate based on frosting processing and conductive glass thereof

Abstract

A technology for improving a photoelectric conversion rate of a conductive substrate based on frosting processing and conductive glass thereof are disclosed. Light transmittance of front panel glass of a solar cell is low, which causes low solar cell conversion efficiency. By using the technology of the invention, the above problem can be solved. A technology scheme is characterized in that: a structure of the conductive substrate glass comprises: substrate glass and a transparent conductive film layer which is sputtered on an upper surface of the substrate glass; the upper surface, which is the surface of the substrate glass contacting with the transparent conductive film layer, is a frosting surface which is formed through the frosting processing. In the invention, the substrate glass is firstly performed the frosting processing so as to form the frosting surface and then the transparent conductive film layer is sputtered on the frosting surface. Through the frosting surface, an optical path of light in the glass can be increased; reflectivity of the substrate glass can be reduced so that the light transmittance can be raised and a problem of the low solar cell conversion efficiency can be solved.

Description

technical field [0001] The invention relates to a conductive substrate glass for a solar cell and a process thereof, belonging to the field of solar cell preparation, in particular to a process for improving the photoelectric conversion rate of a conductive substrate based on frosting treatment and the conductive glass. Background technique [0002] Solar cells are semiconductor devices that directly convert light energy into electrical energy. Solar power generation has many advantages: safe and reliable, short construction period, easy maintenance, and unattended. Because amorphous silicon can absorb more light than crystalline silicon, amorphous silicon cell components have become a hot research topic at present, but the photoelectric conversion efficiency of amorphous silicon cells is low. As an important part of the amorphous silicon cell, the light transmittance of the front glass can only reach 92%, which means that a large part of the sunlight cannot be fully utilize...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical problem of low light transmittance of solar cell front plate glass in the prior art, which leads to low conversion efficiency of solar cells, the present invention designs a process based on frosting treatment to improve the photoelectric conversion rate of conductive substrates and conductive glass, and the substrate substrate The glass is first frosted to form a frosted surface, and then a transparent conductive film layer is sputtered on the frosted surface. The frosted surface increases the optical path of light propagating in the glass and reduces the reflectivity of the substrate glass, thereby improving Improve the light transmittance and solve the problem of low conversion efficiency of solar cells

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