Covalently Bound Clusters of Alpha-Substituted PDIRival Electron Acceptors to Fullerene for Organic Solar Cells

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 dissociat...

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Bibliographic Details
Published in:Journal of the American Chemical Society 2016-06, Vol.138 (23), p.7248-7251
Main Authors: Wu, Qinghe, Zhao, Donglin, Schneider, Alexander M, Chen, Wei, Yu, Luping
Format: Article
Language:English
Subjects:
INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
SOLAR ENERGY
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Summary: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 J sc values (>18 mA/cm2), comparable with those of the corresponding PC71BM/PTB7-Th-based solar cells.
ISSN:0002-7863
1520-5126
DOI:10.1021/jacs.6b03562