A double-acceptor as a superior organic dye design for p-type DSSCs: high photocurrents and the observed light soaking effectElectronic supplementary information (ESI) available: Detailed electrochemical and photochemical data. See DOI: 10.1039/c4cp04010d

Herein, we report three novel single donor double acceptor dyes, BH2, 4, and 6, for use in p-type dye sensitized solar cells (DSSCs). BH4 yields one of the highest photocurrents, 7.4 mA cm −2 , to date. The high performance is achieved via a shorter synthetic route and no exotic materials or cell-bu...

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Main Authors Click, Kevin A, Beauchamp, Damian R, Garrett, Benjamin R, Huang, Zhongjie, Hadad, Christopher M, Wu, Yiying
Format Journal Article
LanguageEnglish
Published 13.11.2014
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Abstract Herein, we report three novel single donor double acceptor dyes, BH2, 4, and 6, for use in p-type dye sensitized solar cells (DSSCs). BH4 yields one of the highest photocurrents, 7.4 mA cm −2 , to date. The high performance is achieved via a shorter synthetic route and no exotic materials or cell-building techniques. We suggest a structural principle when building dyes whereby one adopts a double acceptor/single anchor when a triphenylamine moiety is incorporated into a dye for p-type DSSCs. This strategy increases the molar extinction coefficient while simultaneously reducing the number of synthetic steps. The molar extinction coefficients (99 980 M −1 cm −1 ) reported herein are among the highest reported. Finally, we report the first-ever-observed light soaking effect in p-type DSSCs. A double-acceptor architecture for organic dyes is explored through device fabrication, DFT, impedance spectroscopy, electrolyte screening, and adsorption studies yielding very high molar extinction coefficients (99 980 M −1 cm −1 ), high photocurrents (7.4 mA cm −2 ), and the light soaking effect.
AbstractList Herein, we report three novel single donor double acceptor dyes, BH2, 4, and 6, for use in p-type dye sensitized solar cells (DSSCs). BH4 yields one of the highest photocurrents, 7.4 mA cm −2 , to date. The high performance is achieved via a shorter synthetic route and no exotic materials or cell-building techniques. We suggest a structural principle when building dyes whereby one adopts a double acceptor/single anchor when a triphenylamine moiety is incorporated into a dye for p-type DSSCs. This strategy increases the molar extinction coefficient while simultaneously reducing the number of synthetic steps. The molar extinction coefficients (99 980 M −1 cm −1 ) reported herein are among the highest reported. Finally, we report the first-ever-observed light soaking effect in p-type DSSCs. A double-acceptor architecture for organic dyes is explored through device fabrication, DFT, impedance spectroscopy, electrolyte screening, and adsorption studies yielding very high molar extinction coefficients (99 980 M −1 cm −1 ), high photocurrents (7.4 mA cm −2 ), and the light soaking effect.
Author Huang, Zhongjie
Hadad, Christopher M
Beauchamp, Damian R
Garrett, Benjamin R
Wu, Yiying
Click, Kevin A
AuthorAffiliation The Ohio State University
Department of Chemistry and Biochemistry
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  givenname: Kevin A
  surname: Click
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  givenname: Damian R
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  givenname: Zhongjie
  surname: Huang
  fullname: Huang, Zhongjie
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  givenname: Christopher M
  surname: Hadad
  fullname: Hadad, Christopher M
– sequence: 6
  givenname: Yiying
  surname: Wu
  fullname: Wu, Yiying
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  publication-title: Gaussian 09
  doi: Frisch Trucks Schlegel Scuseria Robb Cheeseman Scalmani Barone Mennucci Petersson
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Title A double-acceptor as a superior organic dye design for p-type DSSCs: high photocurrents and the observed light soaking effectElectronic supplementary information (ESI) available: Detailed electrochemical and photochemical data. See DOI: 10.1039/c4cp04010d
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