Title Exciton-phonon coupled states in $CdTe/Cd_{1-x}Zn_{x}Te$ quantum dots Author El Moussaouy, A. Bria, D. Nougauoi, A. Charrour, R. Bouhassoune, M. Publication type article Publication 2003 New York, N.Y. :American Institute of Physics , 2003 Subject Physics Source (journal) Journal of applied physics / American Institute of Physics. - New York, N.Y., 1937, currens Volume/pages 93(2003) :5 , p. 2906-2911 ISSN 0021-8979 ISI 000181307000094 Carrier E Target language English (eng) Full text (Publishers DOI) Affiliation University of Antwerp Abstract This article presents a theoretical analysis of the dependence of the exciton binding energy and exciton-LO-phonon coupling on the cylindrical quantum dot (QD) size. The effect of the temperature on the integrated photoluminescence line intensity is also investigated. Calculations were performed within the effective-mass approximation by using a variational method. Specific applications of these results are given for CdTe QDs embedded in a Cd1-xZnxTe matrix. The excitonic confinement is described by a finite, deep potential well. We observe, on the one-hand, an enhancement of the exciton binding energy and the exciton-LO-phonon coupling energy with decreasing dot size. On the other hand, at high temperature, the LO phonon has a noticeable effect on the photoluminescence intensity. This last physical parameter also shows a great dependence on QD size and on the potential level induced by the barrier material. (C) 2003 American Institute of Physics. Full text (open access) https://repository.uantwerpen.be/docman/irua/d1495b/5897.pdf E-info http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000181307000094&DestLinkType=RelatedRecords&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000181307000094&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000181307000094&DestLinkType=CitingArticles&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848 Handle