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Applied Physics Letters / Volume 78 / Issue 6 / INTERDISCIPLINARY AND GENERAL PHYSICS
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Appl. Phys. Lett. 78, 841 (2001); http://dx.doi.org/10.1063/1.1345834 (3 pages)

2.5% efficient organic plastic solar cells

Sean E. Shaheen1, Christoph J. Brabec1, N. Serdar Sariciftci1, Franz Padinger2, Thomas Fromherz2, and Jan C. Hummelen3

1Linz Institute for Organic Solar Cells (LIOS), Physical Chemistry, Johannes Kepler University of Linz, A-4040 Linz, Austria
2Quantum Solar Energy Linz (QSEL), Gruberstr. 40-42, A-4010 Linz, Austria
3Stratingh Institute and Materials Science Center, University of Groningen, The Netherlands

(Received 10 August 2000; accepted 4 December 2000)

We show that the power conversion efficiency of organic photovoltaic devices based on a conjugated polymer/methanofullerene blend is dramatically affected by molecular morphology. By structuring the blend to be a more intimate mixture that contains less phase segregation of methanofullerenes, and simultaneously increasing the degree of interactions between conjugated polymer chains, we have fabricated a device with a power conversion efficiency of 2.5% under AM1.5 illumination. This is a nearly threefold enhancement over previously reported values for such a device, and it approaches what is needed for the practical use of these devices for harvesting energy from sunlight. © 2001 American Institute of Physics.

© 2001 American Institute of Physics

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KEYWORDS and PACS

Keywords

solar cells, conducting polymers, polymer blends, polymer structure, short-circuit currents, polymer films, spin coating

PACS

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.1345834

PUBLICATION DATA

ISSN

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

Publisher

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

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