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
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| Authors: | Shunsuke Irie Dr. Shinichiro Fuse Dr. Masato M. Maitani Prof. Yuji Wada Dr. Yuhei Ogomi Prof. Shuzi Hayase Dr. Tatsuo Kaiho Dr. Hisashi Masui Dr. Hiroshi Tanaka Prof. Takashi Takahashi |
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| Affiliation: | 1. Department of Applied Chemistry, Tokyo Institute of Technology, Tokyo, Japan;2. Chemical Resources Laboratory, Tokyo Institute of Technology, Yokohama, Japan;3. Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, Fukuoka, Japan;4. Brine Resources Research & Development Division, Kanto Natural Gas Development Co., Ltd., Chiba, Japan;5. Yokohama University of Pharmacy, Yokohama, Japan |
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| 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. |
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| Keywords: | combinatorial chemistry cross-coupling dyes/pigments solar cells one-pot reactions |
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