Dye sensitized solar batter and its electrode

Abstract

A dye sensitization solar battery electrode, including a conducting substrate, a semiconductor nanometer crystal film formed on the substrate and the dye layer formed on the crystal film. The semiconductor nanometer crystal film contains umpty conductive particles. This invention also provides the dye sensitization solar battery adopting the above electrode. This invention adds umpty conductive particles such as metal particles, carbon nanometer materials and etc into the semiconductor nanometer crystal film of the dye sensitization solar battery electrode, and solves the problem of low conducting ratio of the present semiconductor nanometer crystal film of the dye sensitization solar battery.

Description

【Technical field】 [0001] The invention relates to a dye-sensitized solar cell, in particular to a dye-sensitized solar cell electrode. 【Background technique】 [0002] A solar cell is a device that converts solar energy directly into electricity. In the 1970s, silicon solar cells first developed by Bell Laboratories in the United States gradually developed. The working principle of this silicon solar cell is based on the photovoltaic effect of semiconductors. Although the photoelectric conversion efficiency of silicon solar cells is high, its manufacturing process is complex, expensive, and demanding on materials, thus limiting its wide application. In the 1990s, dye-sensitized solar cells developed using nanocrystals are expected to replace traditional silicon solar cells, and thus become a research hotspot in this field. [0003] Dye-sensitized solar cells use a semiconductor nanocrystal film formed on a conductive substrate, and adsorb a photosensitive dye on its surfac...

AI Technical Summary

Problems solved by technology

Therefore, the electron mobility is low, and its recombination probability with the surrounding electron acceptors (such as the surface state trap of the nanocrystalline film and the oxidized state electrolyte) is greatly improved, thereby significantly reducing the photoelectric conversion rate.

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