Raman spectroscopy of silicon nanowires
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- 24 December 2003
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 68 (24), 241312
- https://doi.org/10.1103/physrevb.68.241312
Abstract
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.Keywords
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