Dye-sensitized solar battery using compound semiconductor material

Abstract

The present invention relates to a dye-sensitized solar battery using the compound semiconductor material. The compound semiconductor material comprises the semiconductor material particles and inorganic particles coated on the surface. Furthermore the compound semiconductor material has a specific surface area of about 15-80m<2> / g. The compound semiconductor material used by the invention has a large specific surface area. The absorbing capacity of the photosensitizer can be greatly increased without adding the thickness of the semiconductor material layer thereby increasing the efficiency of the battery assembly.

Description

technical field [0001] The present invention relates to dye-sensitive solar cells using compound semiconductor materials. Background technique [0002] With the rapid development of science and technology and economy, the use of energy has also increased significantly. The stocks of the most used raw materials such as oil, natural gas, and coal are constantly decreasing, and the increased demand must rely on other emerging energy sources. Among them, because solar energy is less polluting, it is currently one of the most promising and important energy research topics. So far, many different types of solar cells have been developed, among which dye-sensitized solar cells (Dye-Sensitized Solar Cell, DSSC) are considered to have the most development potential because of their low price. [0003] DSSC was first developed in 1976 by the Tsubomura team in Japan using porous ZnO as an electrode, and its photoelectric conversion efficiency was 2.5%. The photoelectric conversion ef...

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Problems solved by technology

However, when light passes through the semiconductor material layer, because of its short straight-line path, it cannot effectively contact with the photosensitizer, so the efficiency of the battery module is not good.

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