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Highly Asymmetrical Porphyrins with Enhanced Push-Pull Character for Dye-Sensitized Solar Cells

Kurotobi, Kei; Toude, Yuuki; Kawamoto, Kyosuke; Fujimori, Yamato; Ito, Seigo; Chabera, Pavel LU ; Sundström, Villy LU and Imahori, Hiroshi (2013) In Chemistry: A European Journal 19(50). p.17075-17081
Abstract
A porphyrin -system has been modulated by enhancing the push-pull character with highly asymmetrical substitution for dye-sensitized solar cells for the first time. Namely, both two diarylamino moieties as a strong electron-donating group and one carboxyphenylethynyl moiety as a strong electron-withdrawing, anchoring group were introduced into the meso-positions of the porphyrin core in a lower symmetrical manner. As a result of the improved light-harvesting property as well as high electron distribution in the anchoring group of LUMO, a push-pull-enhanced, porphyrin-sensitized solar cell exhibited more than 10% power conversion efficiency, which exceeded that of a representative highly efficient porphyrin (i.e., YD2)-sensitized solar cell... (More)
A porphyrin -system has been modulated by enhancing the push-pull character with highly asymmetrical substitution for dye-sensitized solar cells for the first time. Namely, both two diarylamino moieties as a strong electron-donating group and one carboxyphenylethynyl moiety as a strong electron-withdrawing, anchoring group were introduced into the meso-positions of the porphyrin core in a lower symmetrical manner. As a result of the improved light-harvesting property as well as high electron distribution in the anchoring group of LUMO, a push-pull-enhanced, porphyrin-sensitized solar cell exhibited more than 10% power conversion efficiency, which exceeded that of a representative highly efficient porphyrin (i.e., YD2)-sensitized solar cell under optimized conditions. The rational molecular design concept based on highly asymmetric, push-pull substitution will open the possibilities of further improving cell performance in organic solar cells. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
absorption spectroscopy, electron transfer, porphyrinoids, solar cells, titanium oxide
in
Chemistry: A European Journal
volume
19
issue
50
pages
17075 - 17081
publisher
John Wiley & Sons
external identifiers
  • wos:000327801800027
  • scopus:84889563750
ISSN
1521-3765
DOI
10.1002/chem.201303460
language
English
LU publication?
yes
id
c4b67286-1293-4ea7-9325-60b282c6b2da (old id 4273041)
date added to LUP
2014-01-31 11:53:04
date last changed
2019-03-19 02:05:47
@article{c4b67286-1293-4ea7-9325-60b282c6b2da,
  abstract     = {A porphyrin -system has been modulated by enhancing the push-pull character with highly asymmetrical substitution for dye-sensitized solar cells for the first time. Namely, both two diarylamino moieties as a strong electron-donating group and one carboxyphenylethynyl moiety as a strong electron-withdrawing, anchoring group were introduced into the meso-positions of the porphyrin core in a lower symmetrical manner. As a result of the improved light-harvesting property as well as high electron distribution in the anchoring group of LUMO, a push-pull-enhanced, porphyrin-sensitized solar cell exhibited more than 10% power conversion efficiency, which exceeded that of a representative highly efficient porphyrin (i.e., YD2)-sensitized solar cell under optimized conditions. The rational molecular design concept based on highly asymmetric, push-pull substitution will open the possibilities of further improving cell performance in organic solar cells.},
  author       = {Kurotobi, Kei and Toude, Yuuki and Kawamoto, Kyosuke and Fujimori, Yamato and Ito, Seigo and Chabera, Pavel and Sundström, Villy and Imahori, Hiroshi},
  issn         = {1521-3765},
  keyword      = {absorption spectroscopy,electron transfer,porphyrinoids,solar cells,titanium oxide},
  language     = {eng},
  number       = {50},
  pages        = {17075--17081},
  publisher    = {John Wiley & Sons},
  series       = {Chemistry: A European Journal},
  title        = {Highly Asymmetrical Porphyrins with Enhanced Push-Pull Character for Dye-Sensitized Solar Cells},
  url          = {http://dx.doi.org/10.1002/chem.201303460},
  volume       = {19},
  year         = {2013},
}