title: Covalently Bound Clusters of Alpha-Substituted PDI-Rival Electron Acceptors to Fullerene for Organic Solar Cells.
abstract: A cluster type of electron acceptor, TPB, bearing four α-perylenediimides (PDIs), was developed, in which the four PDIs form a cross-like molecular conformation while still partially conjugated with the BDT-Th core. The blend TPB:PTB7-Th films show favorable morphology and efficient charge dissociation. The inverted solar cells exhibited the highest PCE of 8.47% with the extraordinarily high Jsc values (>18 mA/cm(2)), comparable with those of the corresponding PC71BM/PTB7-Th-based solar cells.
authors.affiliation: Department of Chemistry and The James Franck Institute, The University of Chicago , 929 E 57th Street, Chicago, Illinois 60637, United States.
authors.forename: Qinghe
authors.initials: Q
authors.lastname: Wu
authors.affiliation: Department of Chemistry and The James Franck Institute, The University of Chicago , 929 E 57th Street, Chicago, Illinois 60637, United States.
authors.forename: Donglin
authors.initials: D
authors.lastname: Zhao
authors.affiliation: Department of Chemistry and The James Franck Institute, The University of Chicago , 929 E 57th Street, Chicago, Illinois 60637, United States.
authors.forename: Alexander M
authors.initials: AM
authors.lastname: Schneider
authors.affiliation: Materials Science Division, Argonne National Laboratory , 9700 Cass Avenue, Lemont, Illinois 60439, United States.|Institute for Molecular Engineering, The University of Chicago , 5747 South Ellis Avenue, Chicago, Illinois 60637, United States.
authors.forename: Wei
authors.initials: W
authors.lastname: Chen
authors.affiliation: Department of Chemistry and The James Franck Institute, The University of Chicago , 929 E 57th Street, Chicago, Illinois 60637, United States.
authors.forename: Luping
authors.initials: L
authors.lastname: Yu