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A Supramolecular Complex in Small‐Molecule Solar Cells based on Contorted Aromatic Molecules
Author(s) -
Kang Seok Ju,
Kim Jong Bok,
Chiu ChienYang,
Ahn Seokhoon,
Schiros Theanne,
Lee Stephanie S.,
Yager Kevin G.,
Toney Michael F.,
Loo YuehLin,
Nuckolls Colin
Publication year - 2012
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201203330
Subject(s) - supramolecular chemistry , fullerene , organic solar cell , molecule , energy conversion efficiency , active layer , small molecule , materials science , chemistry , nanotechnology , layer (electronics) , organic chemistry , optoelectronics , polymer , biochemistry , thin film transistor
“Ball and socket” motif : The contorted dibenzotetrathienocoronene (6‐DBTTC) forms a complex with the C 70 fullerene PC 70 BM embedded in an amorphous phase of PC 70 BM. The materials are processable into organic solar cells in solution. The power conversion efficiency is maximal when there is a 1:2 molar ratio of 6‐DBTTC to PC 70 BM. Formation of the supramolecular complex directly affects charge separation in the active layer.