Solid dye-sensitized nanocrystal/microcrystal silicon composite film solar cell and preparation method thereof

Abstract

The invention discloses a solid dye-sensitized nanocrystal / microcrystal silicon composite film solar cell and a preparation method thereof, and relates to a special semiconductor device for converting light energy into electric energy. The solid dye-sensitized nanocrystal / microcrystal silicon composite film solar cell is composed of a transparent conducting substrate, a dye-sensitized nanocrystal porous film, a porous membrane, a microcrystal silicon hole transport layer and a back electrode, wherein the dye-sensitized nanocrystal porous film is coated on the transparent conducting substrate; the microcrystal silicon hole transport layer is settled on the dye-sensitized nanocrystal porous film to form the solid dye-sensitized nanocrystal / microcrystal silicon porous film; and an aluminum or copper film is plated on the solid dye-sensitized nanocrystal / microcrystal silicon porous film to form the back electrode. In the invention, the dye-sensitized nanocrystal and the microcrystal silicon composite film are matched and compounded to prepare the solid dye-sensitized nanocrystal / microcrystal silicon composite film solar cell. The invention overcomes the defect of poor liquid stability in the traditional dye-sensitized solar cell and the defects of low preparation rate and high preparation cost in the prior microcrystal silicon film solar cell.

Description

technical field [0001] The technical scheme of the invention relates to a semiconductor device specially suitable for converting light energy into electric energy, specifically a solid-state dye-sensitized nanocrystalline microcrystalline silicon composite thin film solar cell and a preparation method thereof. Background technique [0002] Energy issues are related to global sustainable development and have become a key factor restricting social development. Solar energy utilization is one of the most potential industries in the field of new energy. Low-cost, high-efficiency and long-term stable solar cells are the basis for realizing large-scale photoelectric conversion using solar energy. [0003] One type of solar cell is a dye-sensitized solar cell (Dye-sensitized Solar Cell, DSSC for short). This type of battery achieves a photoelectric conversion efficiency close to that of a silicon battery at one tenth of the cost of a silicon battery, and has application prospects...

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is: to provide a solid-state dye-sensitized nanocrystalline microcrystalline silicon composite thin film solar cell and its preparation method, and to match and compound the dye-sensitized nanocrystalline material and the microcrystalline silicon composite thin film material to obtain the The solid-state dye-sensitized nanocrystalline microcrystalline silicon composite thin-film solar cell simultaneously overcomes the disadvantages of poor liquid stability in existing dye-sensitized solar cells and high manufacturing cost due to low preparation rate of microcrystalline silicon thin-film solar cells

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