Electrolyte for photoelectric conversion elements, and photoelectric conversion element and dye-sensitized solar cell using the electrolyte
AssigneeThe Yokohama Rubber Co., Ltd.
InventorsYoshimasa Imazaki, Tsukasa Maruyama
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Abstract
An object of the present invention is to provide an electrolyte for photoelectric conversion elements, and a photoelectric conversion element and a dye-sensitized solar cell using the electrolyte, wherein high energy conversion efficiency can be achieved while substantially not including iodine. The electrolyte for a photoelectric conversion element of the present invention includes an ionic liquid (A) and a carbon material (B) having a specific surface area of from 1,000 to 3,500 m2/g, wherein a content of the carbon material (B) is from 10 to 50 parts by mass per 100 parts by mass of the ionic liquid (A).
Claims18
An electrolyte for a photoelectric conversion element comprising an ionic liquid (A), and a carbon material (B) having a specific surface area of from 1,000 to 3,500 m2/g, and another carbon material (C) aside from the carbon material (B),
- wherein
- a content of the carbon material (B) is from 10 to 50 parts by mass per 100 parts by mass of the ionic liquid (A)), and
- the other carbon material (C) is at least one member selected from the group consisting of an acetylene black, a boron-modified acetylene black, a carbon material displaying a pH of from 2 to 6 as measured in accordance with pH measurement procedures stipulated in JIS Z8802 and a carbon black having a nitrogen specific surface area of not less than 90 m2/g.
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Dependencies are inferred from the claim text.