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.Keywords
This publication has 18 references indexed in Scilit:
- Fabrication and STEM/EELS measurements of nanometer-scale silicon tips and filamentsPhysical Review B, 1999
- Particle size dependence of the volume plasmon energy in cadmium sulphide quantum dots by electron energy loss spectroscopyJournal of Applied Physics, 1999
- Low-Loss EELS Study of Oxide-Covered Aluminum NanospheresMicroscopy Microanalysis Microstructures, 1997
- Semiclassical model for the inelastic scattering probability of electrons traveling parallel to four dielectric layersJournal of Applied Physics, 1994
- Characterization of SiO2/Si(100) interface structure of ultrathin SiO2 films using spatially resolved electron energy loss spectroscopyApplied Physics Letters, 1992
- Size dependence of plasmon energy in Si clustersJournal of Applied Physics, 1992
- Surface- and interface-plasmon modes on small semiconducting spheresPhysical Review B, 1992
- Quantum Size Effects in Excitations of Potassium ClustersPhysical Review Letters, 1988
- Surface-plasmon excitation on oxide-covered spherical particlesPhysical Review B, 1985
- Size-dependent photoabsorption and photoemission of small metal particlesPhysical Review B, 1985