Ontology highlight
ABSTRACT:
SUBMITTER: Caruso D
PROVIDER: S-EPMC3427073 | biostudies-literature | 2012 Aug
REPOSITORIES: biostudies-literature
Proceedings of the National Academy of Sciences of the United States of America 20120806 34
It is normally assumed that electrons and holes in organic solar cells are generated by the dissociation of excitons at the interface between donor and acceptor materials in strongly bound hole-electron pairs. We show in this contribution that excitons can dissociate tens of angstroms away from the interface and generate partially separated electrons and holes, which can more easily overcome their coulombic attraction and form free charges. We first establish under what conditions long-range exc ...[more]