Electronic properties of metal nanorods probed by surface-enhanced Raman spectroscopy
- 9 August 2000
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Chemical Communications
- No. 17,p. 1627-1628
- https://doi.org/10.1039/b002717k
Abstract
Applying the probe molecule strategy, surface-enhanced Raman spectroscopy has been used, for the first time, as a diagnostic tool of the electronic properties of metal nanorods; the vibrational frequency of the probe molecule SCN− at Cu nanorods is shown to critically depend on the nanorod’s diameter in the range from 50 to 15 nm; the up-shifting of the Fermi level with a decrease of the nanorod’s diameter is interpreted based on the change of cohesive energy owing to the high ratio of surface to bulk atoms.Keywords
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