Why is exciton dissociation so efficient at the interface between a conjugated polymer and an electron acceptor?
Year: 2003
Type: article
Abstract: Although doping of a conjugated polymer by electron acceptors strongly facilitates exciton dissociation into geminate pairs of carriers, the yield of free carrier photogeneration can be high only at high doping levels, that is, in polymer/acceptor blends. We suggest a model that explains how excitons can efficiently dissociate into free carriers at an intrinsic polymer/acceptor interface despite the Coulomb interaction between the charges within precursor geminate pairs.
Source: Applied Physics Letters
DOI: 10.1063/1.1586456
Authors: V. I. Arkhipov, P. Heremans, H. Bässler
Institutions: IMEC, Philipps University of Marburg
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W1971889587