Dye-sensitized solar cells are actively being researched in Europe and the United States and Australia as a favorite of next-generation solar cells that cover the weaknesses of the current mainstream solar cell. The structure is to hear two conductive glass electrodes, a thin film of titanium dioxide is an oxide semiconductor, a dye that is referred to as ruthenium complexes, the oxidation-reduction electrolyte solution mainly composed of iodine buyeo in order, the light is converted into electricity by the photoelectrochemical reaction of the three-layer question. Using a sensitizing dye to absorb visible light as much as possible, a porous titanium dioxide captures the electrons that light hits the fly. The basic structure of the Switzerland MP was about 10% of the conversion efficiency achieved in 1991 by Prof. Greg of the University of Technology at Lausanne, Switzerland Federal Institute of Technology, Research and development, The Joint research group of the Max Planck Institute of Germany increased the conversion efficiency to 33% by adopting a positive charge to the electrolyte efficiently. Sealing of the electrolyte solution to practical use, although the technical issues such as functional maintenance measures are left, after both the main raw material is inexpensive, because it is not necessary also takusaivalent manufacturing equipment, it is estimated that it can be produced at about 70 yen per watt, already material department, It attracts expectations of related manufacturers such as automobiles.
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