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Applied Physics Letters / Volume 96 / Issue 26 / NANOSCALE SCIENCE AND DESIGN

Appl. Phys. Lett. 96, 263109 (2010); http://dx.doi.org/10.1063/1.3458809 (3 pages)

Nanostructured interfaces in polymer solar cells

W. Wiedemann1, L. Sims1, A. Abdellah2, A. Exner2, R. Meier3, K. P. Musselman4, J. L. MacManus-Driscoll4, P. Müller-Buschbaum3, G. Scarpa2, P. Lugli2, and L. Schmidt-Mende1

1Department of Physics, Center for NanoScience (CeNS), Ludwig-Maximilians University, Amalienstr. 54, 80799 Munich, Germany
2Institute for Nanoelectronics, Technische Universität München, Theresienstr. 90, 80333 München, Germany
3Physik-Department, Technische Universität München, LS E13, James-Franck-Str. 1, 85747 Garching, Germany
4Department of Materials Science and Metallurgy, University of Cambridge, Pembroke Street, CB2 3QZ Cambridge, United Kingdom

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(Received 26 February 2010; accepted 9 June 2010; published online 30 June 2010)

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.

© 2010 American Institute of Physics

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KEYWORDS and PACS

Keywords

nanofabrication, nanostructured materials, photovoltaic cells, polymer blends, solar cells

PACS

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3458809

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    J. A. Barker, C. M. Ramsdale, and N. C. Greenham, Phys. Rev. B 67, 075205 (2003).

    C. Groves, R. A. Marsh, and N. C. Greenham, J. Chem. Phys. 129, 114903 (2008)JCPSA6000129000011114903000001.


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