Optical vibrons in CdSe dots and dispersion relation of the bulk material
- 15 February 1998
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 57 (8) , 4664-4669
- https://doi.org/10.1103/physrevb.57.4664
Abstract
We examine the dependence on size distribution of the Raman line shape of optical vibron modes in CdSe dots. A detailed comparison with the theory of electron-hole correlated Raman scattering in spherical quantum dots, which includes LO-confined modes, is carried out. The obtained CdSe vibron frequencies are found to map well on the ab initio calculated LO phonon dispersion relations of wurtzite CdSe along the [001] direction of the Brillouin zone.Keywords
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