CUED Publications database

Raman spectroscopy of silicon nanowires

Piscanec, S and Cantoro, M and Ferrari, AC and Zapien, JA and Lifshitz, Y and Lee, ST and Hofmann, S and Robertson, J (2003) Raman spectroscopy of silicon nanowires. Physical Review B - Condensed Matter and Materials Physics, 68. pp. 2413121-2413124. ISSN 0163-1829

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We measure the effects of phonon confinement on the Raman spectra of silicon nanowires. We show how previous spectra were inconsistent with phonon confinement, but were due to intense local heating caused by the laser. This is peculiar to nanostructures, and would require orders of magnitude more power in bulk Si. By working at very low laser powers, we identify the contribution of pure confinement typical of quantum wires.

Item Type: Article
Depositing User: Cron job
Date Deposited: 16 Jul 2015 13:04
Last Modified: 04 Oct 2015 02:22