Role of local fields in the optical properties of silicon nanocrystals using the tight binding approach

Simple item page
dc.creatorTrani, F.
dc.creatorNinno, D.
dc.creatorIadonisi, G.
dc.date2007-10-26
dc.date.accessioned2026-07-07T08:38:51Z
dc.date.available2026-07-07T08:38:51Z
dc.descriptionThe role of local fields in the optical response of silicon nanocrystals is analyzed using a tight binding approach. Our calculations show that, at variance with bulk silicon, local field effects dramatically modify the silicon nanocrystal optical response. An explanation is given in terms of surface electronic polarization and confirmed by the fair agreement between the tight binding results and that of a classical dielectric model. From such a comparison, it emerges that the classical model works not only for large but also for very small nanocrystals. Moreover, the dependence on size of the optical response is discussed, in particular treating the limit of large size nanocrystals.
dc.description4 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0710.5069
dc.identifierhttp://arxiv.org/abs/0710.5069
dc.identifierPhysical Review B 75, 033312 (2007)
dc.identifierdoi:10.1103/PhysRevB.75.033312
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/140876
dc.subjectMaterials Science
dc.titleRole of local fields in the optical properties of silicon nanocrystals using the tight binding approach
dc.typetext

Files

Collections

arXiv