Double-layered nanoparticle stacks for surface enhanced infrared absorption spectroscopy

Srajer, Johannes; Schwaighofer, Andreas; Ramer, Georg; Rotter, Stefan; Guenay, Bilal; Kriegner, Albert; Knoll, Wolfgang; Lendl, Bernhard; Nowak, Christoph

doi:10.1039/c3nr04726a

Record link:

https://resolver.obvsg.at/urn:nbn:at:at-ubtuw:3-7455
http://hdl.handle.net/20.500.12708/689

Title:

Double-layered nanoparticle stacks for surface enhanced infrared absorption spectroscopy

Citation:

Srajer, J., Schwaighofer, A., Ramer, G., Rotter, S., Guenay, B., Kriegner, A., Knoll, W., Lendl, B., & Nowak, C. (2014). Double-layered nanoparticle stacks for surface enhanced infrared absorption spectroscopy. Nanoscale. https://doi.org/10.1039/c3nr04726a

Publisher DOI:

10.1039/c3nr04726a

CatalogPlus:

AC15517661

Publication Type:

Article - Short/Brief/Rapid Communication

Language:

English

Authors:

Srajer, Johannes
Schwaighofer, Andreas
Ramer, Georg
Rotter, Stefan
Guenay, Bilal
Kriegner, Albert
Knoll, Wolfgang
Lendl, Bernhard
Nowak, Christoph

Organisational Unit:

E164 - Institut für Chemische Technologien und Analytik

Journal:

Nanoscale

ISSN:

2040-3364

Date (published):

1-Jan-2014

Publisher:

Royal Society of Chemistry

Peer reviewed:

Yes

Abstract:

We demonstrate that double-layered stacks of gold and insulator nanoparticles arranged on a flat gold surface dramatically enhance the sensitivity in absorption infrared microscopy. Through morphological variations of the nanoparticles, the frequency of the plasmon resonances can be tuned to match the frequency of the molecular vibration in the mid-infrared region. The results show that the nanostructures enhance the absorption signal of the molecules by a factor of up to 2.2 106, while preserving their characteristic lineshape remarkably well.

Additional information:

The final publication is available via <a href="https://doi.org/10.1039/c3nr04726a" target="_blank">https://doi.org/10.1039/c3nr04726a</a>.

License:

In Copyright

Appears in Collections:

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