Plasmon excitation modes in nanowire arrays
- 1 March 2001
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 89 (5) , 2733-2736
- https://doi.org/10.1063/1.1337940
Abstract
Electron energy loss spectrometry and energy-filtered transmission electron microscopy reveal characteristicplasmon excitations in both isolated Bi nanowires and an array of Bi nanowires within an Al 2 O 3 matrix. As the average nanowire diameter decreases from 90 to 35 nm, both the volume plasmon energy and peak width increase. In addition, a lower-energy excitation is present in a very localized region at the Bi–Al 2 O 3 interface. These results are discussed in the context of quantum confinement and the influence of interfaces on the electronic properties of nanocompositematerials.This publication has 18 references indexed in Scilit:
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