Ontology highlight
ABSTRACT:
SUBMITTER: Thiessen A
PROVIDER: S-EPMC3780855 | biostudies-other | 2013 Sep
REPOSITORIES: biostudies-other
Thiessen Alexander A Vogelsang Jan J Adachi Takuji T Steiner Florian F Vanden Bout David D Lupton John M JM
Proceedings of the National Academy of Sciences of the United States of America 20130903 38
The spectral breadth of conjugated polymers gives these materials a clear advantage over other molecular compounds for organic photovoltaic applications and is a key factor in recent efficiencies topping 10%. However, why do excitonic transitions, which are inherently narrow, lead to absorption over such a broad range of wavelengths in the first place? Using single-molecule spectroscopy, we address this fundamental question in a model material, poly(3-hexylthiophene). Narrow zero-phonon lines fr ...[more]