Effect of Alkyl Substituents on 2D and 1D Self-assembly and Photovoltaic Properties of Hydrogen-bonded Oligothiophene Rosettes

Hayato Ouchi 1 Takahiro Kizaki 2 Xu Lin 3 Deepak D. Prabhu 1 Nagahiro Hoshi Fabien Silly 4 Ken-Ichi Nakayama 2 Shiki Yagai 1
1 OUJ - The Open University of Japan [Chiba]
2 Graduate School of Science and Engineering [Yamagata]
3 ICS - Institut Charles Sadron
4 LEPO - Laboratoire d'Electronique et nanoPhotonique Organique
SPEC - UMR3680 - Service de physique de l'état condensé, IRAMIS - Institut Rayonnement Matière de Saclay
Abstract : Hydrogen-bonding oligothiophene bearing octyl chains self-assembles into extended nanorods via the formation of cyclic hexamer. The nanorods can function as an electron-donating materials for electron-accepting PC71BM in bulk-heterojunction solar cells. We report the impact of longer alkyl chains on 2D and 1D assembly. Compared to the previously reported hexylated derivative, newly synthesized octylated derivative showed a lower degree of ordering in 2D assembly on a solid–liquid interface, but higher capability in 1D self-assembly into nanorods upon solution-casting.
Keywords : Self-assembly Oligothiophene Organic photovoltaics
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Journal articles
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https://hal-cea.archives-ouvertes.fr/cea-01591477
Contributor : Dominique Girard <>
Submitted on : Thursday, September 21, 2017 - 2:29:50 PM
Last modification on : Friday, February 22, 2019 - 1:30:30 AM

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CEA | DSM-IRAMIS | IRAMIS-SPEC | INC-CNRS | UNIV-PARIS-SACLAY | CEA-DRF | SITE-ALSACE | CEA-UPSAY

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Hayato Ouchi, Takahiro Kizaki, Xu Lin, Deepak D. Prabhu, Nagahiro Hoshi, et al.. Effect of Alkyl Substituents on 2D and 1D Self-assembly and Photovoltaic Properties of Hydrogen-bonded Oligothiophene Rosettes. Chemistry Letters, Chemical Society of Japan, 2017, 46 (8), pp.1102 - 1104. ⟨10.1246/cl.170407⟩. ⟨cea-01591477⟩

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