Heterostructure photoanode for dye-sensitized solar cell and manufacturing method thereof

A solar cell and hierarchical structure technology, applied in photosensitive devices, capacitor electrodes, circuits, etc., can solve problems such as failure to achieve results, and achieve the effects of improving light utilization efficiency, improving photoelectric conversion efficiency, and enhancing charge transmission and separation
CN101728083AInactive Publication Date: 2010-06-09DALIAN FISHERIES UNIVERSITY
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
DALIAN FISHERIES UNIVERSITY
Publication Date
2010-06-09
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a heterostructure photoanode for a dye-sensitized solar cell, comprising conductive glass and a dye absorption layer coated on the conductive glass. The dye absorption layer is a TiO2-semiconductor heterostructure film, wherein a primary structure is TiO2 nano-fiber or / and TiO2 nano-tubes, and a secondary structure is at least one of semiconductor nano-particles, semiconductor nao-rods and semiconductor nano-wires constructed by semiconductor nano-fiber or / and semiconductor nano-tubes, namely that 1-D heterostructure nano-material as the dye absorption layer of the photoanode of a dye-sensitized solar cell. The combination of the structural characteristics of 1-D nano-size and the polarization property of galvanic couple formed by TiO2 / semiconductor composite system interface can enhance the transmission and the separation of electric charges and improve the electronic transmission efficiency; meanwhile, a huge specific surface area can effectively improve the amount of dye absorption and the light utilization efficiency and further improve the photoelectric transformation efficiency of the dye-sensitized solar cell by 10 percent.
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Description

Technical field:

[0001] The invention relates to a dye-sensitized solar cell photoanode and a preparation method thereof, in particular to a dye-sensitized solar cell which can effectively increase the dye adsorption amount and the light utilization efficiency, thereby further improving the photoelectric conversion efficiency of the dye-sensitized solar cell Hierarchical structure photoanode for battery and preparation method thereof. Background technique:

[0002] The dye adsorption amount and light utilization efficiency of the photoanode of dye-sensitized solar cells (DSC) are the main factors that directly affect the photoelectric conversion efficiency of dye-sensitized solar cells. It is also capable of fast delivery in the photoanode. Studies have shown that only single-layer dye molecules chemically adsorbed on the semiconductor surface can produce effective sensitization efficiency, while multi-layer dyes can hinder the transmission of electrons. There is a single ...

Claims

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