A supramolecular complex in small-molecule solar cells based on contorted aromatic molecules.
"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.
Department of Chemistry, Columbia University, New York, NY 10027, USA.
Seok Ju
SJ
Kang
Jong Bok
JB
Kim
Chien-Yang
CY
Chiu
Seokhoon
S
Ahn
Theanne
T
Schiros
Stephanie S
SS
Lee
Kevin G
KG
Yager
Michael F
MF
Toney
Yueh-Lin
YL
Loo
Colin
C
Nuckolls
D037741:Fullerenes / Q000737:chemistry*; D011083:Polycyclic Compounds / Q000737:chemistry*; D012666:Semiconductors; D012993:Solar Energy
D037741:Fullerenes; D011083:Polycyclic Compounds; C012256:coronene