Show simple item record

dc.contributor.authorRAKOVICH, YURY
dc.date2003en
dc.date.accessioned2009-04-15T13:13:42Z
dc.date.available2009-04-15T13:13:42Z
dc.date.issued2003
dc.date.submitted2006en
dc.identifier.citationA.V. Baranov, Y.P. Rakovich, J.F. Donegan, T.S. Perova, R.A. Moore, D.V. Talapin, A.L. Rogach, Y. Masumoto and I. Nabiev, `Effect of ZnS shell thickness on the phonon spectra in CdSe quantum dots? in Physical Review B, 68, (16), 2003, pp 165306-1 ? 165306-7en
dc.identifier.otherYen
dc.identifier.otherY
dc.identifier.urihttp://hdl.handle.net/2262/29167
dc.descriptionPUBLISHEDen
dc.description.abstractThe evolution of the optical phonon spectra of colloidal core/shell CdSe/ZnS quantum dots with an increase of the shell thickness from 0.5 to 3.4 monolayers has been studied by resonant Raman spectroscopy. The results obtained suggest that the ZnS shell changes its structure from amorphous to partly crystalline as the thickness increases. Simultaneously, an increase in Raman scattering by surface (core/shell interface) phonons and the redshift of the corresponding phonon band have been observed and assigned to variations in the shell structure. The disorder present in the shell provides a major contribution to the line shape of the Raman spectra at higher ZnS coverage. A method to control the quality of quantum dots based on Raman spectroscopy is proposed.en
dc.format.extent102282 bytes
dc.format.extent165306en
dc.format.mimetypeapplication/pdf
dc.language.isoenen
dc.publisherAmerican Physical Societyen
dc.rightsYen
dc.subjectPhysicsen
dc.titleEffect of ZnS shell thickness on the phonon spectra in CdSe quantum dotsen
dc.typeJournal Articleen
dc.contributor.sponsorScience Foundation Ireland
dc.contributor.sponsorEnterprise Irelanden
dc.type.supercollectionscholarly_publicationsen
dc.type.supercollectionrefereed_publicationsen
dc.identifier.rssinternalid38535
dc.identifier.rssurihttp://link.aps.org/doi/10.1103/PhysRevB.68.165306


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record