TITLE

Nanostructured interfaces in polymer solar cells

AUTHOR(S)
Wiedemann, W.; Sims, L.; Abdellah, A.; Exner, A.; Meier, R.; Musselman, K. P.; MacManus-Driscoll, J. L.; Müller-Buschbaum, P.; Scarpa, G.; Lugli, P.; Schmidt-Mende, L.
PUB. DATE
June 2010
SOURCE
Applied Physics Letters;6/28/2010, Vol. 96 Issue 26, p263109
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The morphology in organic photovoltaics plays a key role in determining the device efficiency. We propose a method to fabricate bilayer devices with controlled nanostructured interfaces by combining nanoimprinting and lamination techniques. This technique allows us to achieve a network structure of donor-acceptor material with a ∼80 nm periodicity and ∼40 nm width. These structures have an abrupt interface between the donor and acceptor materials and show an increased effective interfacial area and photovoltaic performance compared to bilayer solar cells. In contrast to blend films, they will allow an in depth analysis of the influence of morphology on interfacial physical processes.
ACCESSION #
51975694

 

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