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Browse Journals & Magazines > Applied Physics Letters ...> Volume:93 Issue:12 Help

Plasmon enhancement of bulk heterojunction organic photovoltaic devices by electrode modification

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4 Author(s)
Chen, Xiaohong ; Department of Chemistry, University of Rochester, Rochester, New York 14627, USA ; Zhao, Chunchang ; Rothberg, Lewis ; Ng, Man-Kit

Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.2988190 

The efficiency of photovoltaic devices fabricated from blends of regioregular poly(3-hexylthiophene) and {6,6}-phenyl C61-butyric acid methylester was improved by introducing a thin Au layer and LiF spacer prior to evaporation of Al contacts onto the polymer blend. Using an optimized Au/LiF/Al electrode gave a 20%–30% improved power efficiency over devices with only LiF/Al for AM1.5 irradiation. The increased efficiency is primarily due to the increased photocurrent, and we present spectroscopic data suggesting that this can be ascribed to plasmon enhancement of the polymer absorption by nanotextured Au.

Published in:
Applied Physics Letters  (Volume:93 ,  Issue: 12 )

Date of Publication: Sep 2008

Page(s):
123302 - 123302-3
ISSN :
0003-6951
Digital Object Identifier :
10.1063/1.2988190
Product Type:
Journals & Magazines
Date of Current Version :
18 June 2009
Issue Date :
Sep 2008

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