In this article, we present a refined nanostructuring method, lift-off nanoimprint lithography (LO-NIL), which allows the deposition of high-quality metal nanostructures due to a bilayer resist process and compare it to nano-transfer printing (nTP), a purely additive metal printing technique. LO-NIL and nTP are used as accurate methods for the fabrication of ordered plasmonic metal nanostructure arrays on semiconducting substrates over large areas using the example of gold nanodisks on silicon. The possibility of feature size adjustment in LO-NIL during the fabrication process is especially useful for tuning plasmonic resonance peaks between the visible and the mid-infrared range as well as fine-tuning of these resonances. In UV-VIS-NIR spectroscopic measurements, a significant blueshift in the plasmonic resonance was found for nTP samples compared to the ones fabricated with the lift-off technique. It was concluded that this shift originates from a metal/substrate interface roughness resulting in a change in the dielectric properties of this layer. This finding was verified with finite difference time-domain simulations where a similar trend was found for a model with an assumed thin air gap in this interface. In cyclic voltammetry measurements under illumination, a reduced overpotential by almost 400 mV for CO2 reduction and hydrogen evolution was found for LO-NIL samples.
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28 February 2017
Research Article|
February 24 2017
Nanoimprint methods for the fabrication of macroscopic plasmonically active metal nanostructures
Robin D. Nagel
;
Robin D. Nagel
a)
1Institute for Nanoelectronics,
Technical University of Munich
, Arcisstrasse 21, 80333 München, Germany
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Simon Filser
;
Simon Filser
2Nonequilibrium Chemical Physics,
Technical University of Munich
, James-Franck-Str. 1, 85748 Garching b. München, Germany
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Tianyue Zhang;
Tianyue Zhang
3Photonics and Optoelectronics Group,
Ludwig Maximilian University of Munich
, Amalienstr. 54, 80799 München, Germany
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Aurora Manzi;
Aurora Manzi
3Photonics and Optoelectronics Group,
Ludwig Maximilian University of Munich
, Amalienstr. 54, 80799 München, Germany
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Konrad Schönleber;
Konrad Schönleber
2Nonequilibrium Chemical Physics,
Technical University of Munich
, James-Franck-Str. 1, 85748 Garching b. München, Germany
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James Lindsly;
James Lindsly
1Institute for Nanoelectronics,
Technical University of Munich
, Arcisstrasse 21, 80333 München, Germany
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Josef Zimmermann;
Josef Zimmermann
2Nonequilibrium Chemical Physics,
Technical University of Munich
, James-Franck-Str. 1, 85748 Garching b. München, Germany
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Thomas L. Maier;
Thomas L. Maier
2Nonequilibrium Chemical Physics,
Technical University of Munich
, James-Franck-Str. 1, 85748 Garching b. München, Germany
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Giuseppe Scarpa;
Giuseppe Scarpa
1Institute for Nanoelectronics,
Technical University of Munich
, Arcisstrasse 21, 80333 München, Germany
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Katharina Krischer;
Katharina Krischer
2Nonequilibrium Chemical Physics,
Technical University of Munich
, James-Franck-Str. 1, 85748 Garching b. München, Germany
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Paolo Lugli
Paolo Lugli
1Institute for Nanoelectronics,
Technical University of Munich
, Arcisstrasse 21, 80333 München, Germany
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a)
Electronic mail: robin.nagel@nano.ei.tum.de
J. Appl. Phys. 121, 084305 (2017)
Article history
Received:
November 11 2016
Accepted:
January 30 2017
Citation
Robin D. Nagel, Simon Filser, Tianyue Zhang, Aurora Manzi, Konrad Schönleber, James Lindsly, Josef Zimmermann, Thomas L. Maier, Giuseppe Scarpa, Katharina Krischer, Paolo Lugli; Nanoimprint methods for the fabrication of macroscopic plasmonically active metal nanostructures. J. Appl. Phys. 28 February 2017; 121 (8): 084305. https://doi.org/10.1063/1.4976860
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