The University of Tokyo

Tanaka Kikinzoku Kogyo K.k.

Takaya Kubo

Satoshi Uchida

Hiroshi Segawa

Mari Sasaki

Takumi Kinoshita

Jotaro Nakazaki

Jun-ichi Fujisawa

Provided is an energy storage dye-sensitized solar cell having a simple structure. An energy storage dye-sensitized solar cell of the present invention has a photoelectrode and a charge storage electrode on the same surface of a conductive substrate such that the photoelectrode and the charge storage electrode act as one electrode. Hence, the energy storage dye-sensitized solar cell comprises two electrodes: the above-described one electrode and a counter electrode covered with a catalyst, thus having a simple structure.

Energy storage dye-sensitized solar cell

A photoelectric-conversion-device dye comprising a ruthenium metal complex, which includes a molecule including elemental phosphorous and the molecule forms a coordinate bond at least at the phosphorous atom, and which also includes a terpyridine derivative that forms a coordinate bond and has at least one adsorbing group that exhibits adsorptivity toward a metal oxide. The adsorbing group is selected from the group consisting of a carboxylic acid group, an ester thereof, or a salt thereof; a phosphonic acid group, an ester thereof, or a salt thereof; a hydroxyl group; an alkoxy group; and a sulfonic acid group or salt thereof. The dye exhibits absorption over a wide range from the visible light region to the near-infrared region, and as a result, a photoelectric conversion film, an electrode, and a solar cell having improved photoelectric conversion efficiency are provided.

Dye for photoelectric conversion device, and photoelectric conversion film, electrode, and solar cell using same

Growing community of inventors

Kanagawa, Japan

Takaya Kubo