Title: Nanoimprinted semiconducting polymer films with 50 nm features and their application to organic heterojunction solar cells
Authors: Cheyns, D ×
Vasseur, Karolien
Rolin, C
Genoe, Jan
Poortmans, Jozef
Heremans, Paul #
Issue Date: Oct-2008
Publisher: Iop publishing ltd
Series Title: Nanotechnology vol:19 issue:42
Article number: 424016
Abstract: Nanoimprint lithography is used to directly pattern the conjugated polymer semiconductor poly(3-hexylthiophene) (P3HT). We obtain trenches with aspect ratios up to 2 and feature sizes as small as 50 nm in this polymer. The application to organic solar cells is shown by creating an interpenetrated donor-acceptor interface, based on P3HT and N,N'-ditridecyl-3,4,9,10-perylenetetracarboxylic diimide (PTCDI-C-13), deposited from the vapor phase to reduce shadow effects. A planarizing layer of spin-coated zinc oxide (ZnO) nanoparticles is used to reduce the roughness of the layer stack. The response of the photovoltaic devices follows the increased interface area, up to a 2.5-fold enhancement.
ISSN: 0957-4484
Publication status: published
KU Leuven publication type: IT
Appears in Collections:ESAT - MICAS, Microelectronics and Sensors
Department of Materials Engineering - miscellaneous
ESAT - ELECTA, Electrical Energy Computer Architectures
Electrical Engineering (ESAT) TC, Technology Campus Diepenbeek
Technologiecluster ESAT Elektrotechnische Engineering
× corresponding author
# (joint) last author

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