Raman scattering from acoustic phonons confined in Si nanocrystals
- 15 September 1996
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 54 (12), R8373-R8376
- https://doi.org/10.1103/physrevb.54.r8373
Abstract
We have observed Raman scattering from acoustic phonons confined in Si nanocrystals. It was found that the Raman spectra depend strongly on the size of the nanocrystals and the peaks shift to higher frequencies as the size decreases. We also found that the depolarized Raman spectra appear at much lower frequencies than the polarized ones.Keywords
This publication has 21 references indexed in Scilit:
- Raman spectroscopy of Si-rich films: possibility of Si cluster formationJournal of Physics: Condensed Matter, 1996
- Electron-phonon interactions and excitonic dephasing in semiconductor nanocrystalsPhysical Review Letters, 1993
- Porous silicon and siloxene: Vibrational and structural propertiesPhysical Review B, 1993
- A luminescent silicon nanocrystal colloid via a high-temperature aerosol reactionThe Journal of Physical Chemistry, 1993
- Above-band-gap photoluminescence from Si fine particles with oxide shellJournal of Applied Physics, 1991
- Silicon quantum wire array fabrication by electrochemical and chemical dissolution of wafersApplied Physics Letters, 1990
- Quantum size effects on photoluminescence in ultrafine Si particlesApplied Physics Letters, 1990
- The effects of microcrystal size and shape on the one phonon Raman spectra of crystalline semiconductorsSolid State Communications, 1986
- Raman scattering from hydrogenated microcrystalline and amorphous siliconJournal of Physics C: Solid State Physics, 1982
- The one phonon Raman spectrum in microcrystalline siliconSolid State Communications, 1981