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Localized Surface Plasmon Resonances in Aluminum Nanodisks

Langhammer, Christoph, Schwind, Markus, Kasemo, Bengt, Zorić, Igor·2008·Nano Letters

Abstract

The plasmonic properties of arrays of supported Al nanodisks, fabricated by hole-mask colloidal lithography (HCL), are analyzed for the disk diameter range 61-492 nm at a constant disk height of 20 nm. Strong and well-defined (UV-vis-NIR) localized surface plasmon resonances are found and experimentally characterized with respect to spectral peak positions, peak widths, total cross sections, and radiative and nonradiative decay channels. Theoretically, the plasmon excitations are described by electrostatic spheroid theory. Very good qualitative and quantitative agreement between model and experiment is found for all these observables by assuming a nanoparticle embedded in a few nanometer thick homogeneous (native) aluminum oxide shell. Other addressed aspects are: (i) the role of the strong interband transition in Al metal, located at 1.5 eV, for the plasmonic excitations of Al nanoparticles, (ii) the role of the native oxide layer, and (iii) the possibility of using the plasmon excitation as an ultrasensitive, remote, real-time probe for studies of oxidation/corrosion kinetics in metal nanoparticle systems.

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Metadata

Authors
Langhammer, C., Schwind, M., Kasemo, B., & Zorić, I.
Venue
Nano Letters
Published
2008-04-05
Volume
8
Issue
5
Pages
1461-1471
ISSN
  • 1530-6984 (ISSN-L)
  • 1530-6992
OpenAlex
W2010992983
Cited by
588
References
2
FWCI
10.02
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Localized Surface Plasmon Resonances in Aluminum Nanodisks. https://app.cochat.ai/papers/10.1021/nl080453i
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Langhammer, C., Schwind, M., Kasemo, B., & Zorić, I. (2008). Localized Surface Plasmon Resonances in Aluminum Nanodisks. Nano Letters. https://doi.org/10.1021/nl080453i

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