title: Rapid Synthesis of D-A'-π-A Dyes through a One-Pot Three-Component Suzuki-Miyaura Coupling and an Evaluation of their Photovoltaic Properties for Use in Dye-Sensitized Solar Cells.
abstract: Twenty-four D-A'-π-A dyes were rapidly synthesized through a one-pot three-component Suzuki-Miyaura coupling reaction, which was assisted by microwave irradiation. We measured the absorption spectra, electrochemical properties, and solar-cell performance of all the synthesized dyes. The D5 πA4 dye contained our originally designed rigid and nonplanar donor and exerted the highest efficiency at 5.4 %. The short-circuit current (Jsc ) was the most important parameter for the conversion efficiency (η) in the case of the organic D-A'-π-A dyes. Optimal ranges for the D-A'-π-A dyes were observed for high values of Jsc /λmax at λ=560-620 nm, an optical-absorption edge of λ=690-790 nm, and EHOMO and ELUMO values of <1.14 and -0.56 to -0.76 V, respectively.
authors.affiliation: Department of Applied Chemistry, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-ku, Tokyo, 152-8552, Japan.
authors.forename: Shunsuke
authors.initials: S
authors.lastname: Irie
authors.affiliation: Department of Applied Chemistry, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-ku, Tokyo, 152-8552, Japan. sfuse@res.titech.ac.jp.|Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, 226-8503, Japan. sfuse@res.titech.ac.jp.
authors.forename: Shinichiro
authors.initials: S
authors.lastname: Fuse
authors.affiliation: Department of Applied Chemistry, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-ku, Tokyo, 152-8552, Japan.
authors.forename: Masato M
authors.initials: MM
authors.lastname: Maitani
authors.affiliation: Department of Applied Chemistry, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-ku, Tokyo, 152-8552, Japan.
authors.forename: Yuji
authors.initials: Y
authors.lastname: Wada
authors.affiliation: Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, Fukuoka, 808-0196, Japan.
authors.forename: Yuhei
authors.initials: Y
authors.lastname: Ogomi
authors.affiliation: Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, Fukuoka, 808-0196, Japan.
authors.forename: Shuzi
authors.initials: S
authors.lastname: Hayase
authors.affiliation: Brine Resources Research & Development Division, Kanto Natural Gas Development Co., Ltd., Chiba, 297-8550, Japan.
authors.forename: Tatsuo
authors.initials: T
authors.lastname: Kaiho
authors.affiliation: Yokohama University of Pharmacy, 601, Matano-cho, Totsuka-ku, Yokohama, 245-0066, Japan.
authors.forename: Hisashi
authors.initials: H
authors.lastname: Masui
authors.affiliation: Department of Applied Chemistry, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-ku, Tokyo, 152-8552, Japan.
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Tanaka
authors.affiliation: Yokohama University of Pharmacy, 601, Matano-cho, Totsuka-ku, Yokohama, 245-0066, Japan.
authors.forename: Takashi
authors.initials: T
authors.lastname: Takahashi
keywords: combinatorial chemistry; cross-coupling; dyes/pigments; one-pot reactions; solar cells