Hydrogen-bonded oligothiophene rosettes with a benzodithiophene terminal unit: self-assembly and application to bulk heterojunction solar cells

Hayato Ouchi (1) , Xu Lin (1) , Takahiro Kizaki (2) , Deepak D. Prabhu (1) , Fabien Silly (3) , Takashi Kajitani (4, 5) , Takanori Fukushima (5) , Ken-Ichi Nakayama (2) , Shiki Yagai (1)

1 OUJ - The Open University of Japan [Chiba]
2 Graduate School of Science and Engineering [Yamagata]
3 LEPO - Laboratoire d'Electronique et nanoPhotonique Organique
4 RIKEN, XFEL Project Head Office, Kouto 1-1-1, Sayo, Hyogo 679-5148, Japan
5 TITECH - Tokyo Institute of Technology [Tokyo]

Benzodithiophene-functionalized oligothiophene with barbituric acid hydrogen-bonding unit self-assembles into nanoscopic structures via the formation of rosettes. The nanostructures show a power conversion efficiency of 3% upon mixing with PC$_61$BM in bulkheterojunction solar cells without thermal annealing.

Domains: Physics [physics]

Hayato Ouchi, Xu Lin, Takahiro Kizaki, Deepak D. Prabhu, Fabien Silly, et al.. Hydrogen-bonded oligothiophene rosettes with a benzodithiophene terminal unit: self-assembly and application to bulk heterojunction solar cells. Chemical Communications, 2016, 52, pp.7874. ⟨10.1039/C6CC03430F⟩. ⟨cea-01485666⟩