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The Kyoto University patent solves the following problem:
As is widely known, solar cells convert light energy into electricity which attract much attention as a future clean energy source. In particular, tina-sharpens solar cells using a dye allergies is easy to produce, and the cells will be given colorability, flexibility, etc. In doing so, they have other- other parts of the solar cells using silicon or an inorganic compound, and various intensive study and development. As a result, some of the solar cells using a dye allergies made a Ru complex (Ru-based dyes), for example, achieved efficiency in energy conversion (II ) more than 10%, and is expected to be put to practical use (nonpatent Document 1). However, a Ru-based dye used in an expensive, rare metal elements Ru, and thus there are problems of high production costs and limited resources. Therefore, there is a need for the development of an allergy dyes that are lower in cost and whose resources are very limited.
Our analysis of this patent is as follows:
Kyoto University’s patent US 8846905 B2 deals with Porphyrin complex and use thereof.
One thing the present invention is to provide a novel porphyrin complex with excellent natural light and a dye-sharpens solar cell use porphyrin complex as a dye allergies. The porphyrin complex of the present invention as a means for achieving the object is characterized by comprising a porphyrin derivative and a metal atom. The porphyrin derivative has a carboxyaryl group, optionally substituted aryl ring, included at least one of four Meso positions in a porphyrin ring optionally substituted -Position and also has a diarylamino group, optionally replaced by a ring or aryl, included at least either a Meso position beside it and a Meso position against it.
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