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Applied Physics Letters / Volume 95 / Issue 23 / STRUCTURAL, MECHANICAL, THERMODYNAMIC, AND OPTICAL PROPERTIES OF CONDENSED MATTER

Appl. Phys. Lett. 95, 231903 (2009); http://dx.doi.org/10.1063/1.3267078 (3 pages)

High-throughput fabrication of nanoantennae over large areas for biosensing and nanospectroscopy

Arda Kiristopuryan1, Yasin Ekinci1,2, Reto Giannini1, Pratap K. Sahoo2, Ganna Gorodyska3, and Jörg F. Löffler1

1Department of Materials, Laboratory of Metal Physics and Technology, ETH Zurich, 8093 Zurich, Switzerland
2Laboratory for Micro and Nanotechnology, Paul Scherrer Institute, 5232 Villigen-PSI, Switzerland
3Department of Materials, Laboratory for Surface Science and Technology, ETH Zurich, 8093 Zurich, Switzerland

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(Received 2 July 2009; accepted 16 October 2009; published online 7 December 2009)

We report on a simple and high-throughput method for the fabrication of gold and silver nanoparticle dimers with extremely small gaps and extending over large areas, using colloidal lithography and shadow thermal-evaporation techniques. The plasmon resonances of the individual dimers with various structural parameters were studied, as well as their coupling phenomena in the nearly touching regime. The method presented enables fabrication of efficient and low-cost plasmonics structures for applications such as surface-enhanced Raman scattering, plasmon-enhanced fluorescence, and biosensing.

© 2009 American Institute of Physics

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KEYWORDS and PACS

Keywords

biosensors, fluorescence, gold, molecular biophysics, nanofabrication, nanolithography, nanoparticles, nanosensors, plasmonics, plasmons, silver, surface enhanced Raman scattering

PACS

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3267078

PUBLICATION DATA

ISSN

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

Publisher

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

For access to fully linked references, you need to log in.
    H. Xu, J. Aizpurua, M. Käll, and P. Apell, Phys. Rev. E 62, 4318 (2000).

    K. Kneipp, Y. Wang, H. Kneipp, L. T. Perelman, I. Itzkan, R. Dasari, and M. S. Feld, Phys. Rev. Lett. 78, 1667 (1997).

    M. Danckwerts and L. Novotny, Phys. Rev. Lett. 98, 026104 (2007).


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