Raman spectroscopy of ZnS nanostructures
- Raman spectroscopy of ZnS nanostructures
- J. H. Kim; 노희석; J. Kim; 최영진; 박재관
- Raman scattering; ZnS; Nanowire; Nanocomb; Nanobelt
- Issue Date
- Journal of Raman spectroscopy : JRS
- VOL 43, NO 7, 906-910
- We report Raman scattering results of wurtzite ZnS nanowires, nanocombs, and nanobelts. The Raman spectrum obtained
from ZnS nanowires exhibits first-order phonon modes at 272, 284, and 350 cm-1, corresponding to A1/E1 transverse optical,
E2 transverse optical, and A1/E1 longitudinal optical phonons, respectively. Several multiphonon modes are also observed. The
longitudinal optical phonon mode varies in wavenumber for nanocombs and nanobelts, indicating that the residual strain varies
during the morphological change from ZnS nanowires to nanocombs and ultimately to nanobelts. Interestingly, a surface
optical (SO) phonon mode varies in wavenumber depending on the shape and surface roughness of the ZnS nanostructures.
The surface modulation wavelengths of the ZnS nanowires, nanocombs, and nanobelts are estimated using the SO phonon
dispersion relations and the observed SO phonon wavenumbers.
- Appears in Collections:
- KIST Publication > Article
- Files in This Item:
There are no files associated with this item.
- RIS (EndNote)
- XLS (Excel)
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.