Ontology highlight
ABSTRACT:
SUBMITTER: Wang R
PROVIDER: S-EPMC6344565 | biostudies-literature | 2019 Jan
REPOSITORIES: biostudies-literature
Nature communications 20190123 1
The charge separation yield at a bulk heterojunction sets the upper efficiency limit of an organic solar cell. Ultrafast charge transfer processes in polymer/fullerene blends have been intensively studied but much less is known about these processes in all-polymer systems. Here, we show that interfacial charge separation can occur through a polaron pair-derived hole transfer process in all-polymer photovoltaic blends, which is a fundamentally different mechanism compared to the exciton-dominated ...[more]