Light anode for dye sensitization solar battery and preparation method thereof

Abstract

The invention relates to a dye sensitization solar cell light anode and a preparation method thereof. The light anode is characterized in that chemical modification for the dye sensitization solar cell light anode improves the sensitization effect of the dye on the light anode, thereby improving the photoelectric conversion efficiency of the cell. The concrete realization method is to carry out the surface modification of light anode nano crystal through nano SiO2, carry out functionalization, and absorb the dye. The modification of a nano SiO2 layer inhibits the surface state of a nano crystalline film and improves the photoelectric conversion performance of the cell; and simultaneously the surface functionalization increases the absorption amount of the dye, thereby effectively improving the photoelectric conversion efficiency of the solar cell.

Description

technical field

[0001] The invention relates to a photoanode of a dye-sensitized solar cell and a preparation method thereof. Background technique

[0002] With the increasing severity of the global energy crisis, people are eager to find a sustainable clean energy source. Solar energy, as an inexhaustible natural energy source, has increasingly attracted the attention of countries all over the world. Compared with traditional silicon solar cells, dye-sensitized solar cells have low cost and simple fabrication, and have become a research hotspot of scholars from all over the world.

[0003] Dye-sensitized nano-thin film solar cells are mainly composed of the following parts: transparent conductive glass, nano-TiO 2 Porous films, dye-sensitized layers, electrolytes and counter electrodes. The working principle of dye-sensitized solar cells is: the dye molecules in the dye-sensitized layer transition from the ground state to the excited state after absorbing sunlight; the e...

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