Anomalous Raman features of silicon nanowires under high pressure
Anomalous Raman features of silicon nanowires under high pressure
The potential of silicon nanowires (SiNWs), (diameter <10 nm) to transform into rigid bundlelike structures with distinct phonon confinement under high pressure (≤15 GPa), instead of amorphizing as per previous reports, is demonstrated using in situ Raman spectroscopy. The observed splitting of the second order transverse optical (2TO) Raman mode …