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Plasmon-active nano-aperture window electrodes for organic photovoltaics
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Stec, Helena M. and Hatton, Ross A. (2013) Plasmon-active nano-aperture window electrodes for organic photovoltaics. Advanced Energy Materials, Vol.3 (No.2). pp. 193-199. doi:10.1002/aenm.201200502 ISSN 1614-6832.
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Official URL: http://dx.doi.org/10.1002/aenm.201200502
Abstract
A lithography free approach to fabricating optically thin (∼10 nm) noble metal electrodes with a dense array of sub-wavelength apertures is reported. These nano-structured electrodes support surface plasmon resonances which couple strongly with visible light concentrating it near to the electrode surface. They are also remarkably robust and can be fabricated on glass and plastic substrates with a sheet resistance of <15 Ω sq−1. As the window electrode in solution processed and vacuum deposited organic photovoltaics (OPV) the photocurrent is increased by as much as 28% as compared to identical devices without apertures, demonstrating that the apertures do not need to have a tight size and/or shape distribution to be effective. As a drop-in replacement for the indium-tin oxide electrode in flexible OPV these plasmon-active electrodes offer superior performance; 5.1% vs. 4.6%, demonstrating that this class of electrode is a truly viable alternative to conducting oxide window electrodes for OPV.
Item Type: | Journal Article | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry | ||||
Journal or Publication Title: | Advanced Energy Materials | ||||
Publisher: | Wiley - V C H Verlag GmbH & Co. KGaA | ||||
ISSN: | 1614-6832 | ||||
Official Date: | February 2013 | ||||
Dates: |
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Volume: | Vol.3 | ||||
Number: | No.2 | ||||
Page Range: | pp. 193-199 | ||||
DOI: | 10.1002/aenm.201200502 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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