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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/71652
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dc.contributor.authorTabata, Américo Sheitiro-
dc.contributor.authorOliveira, José Brás Barreto de-
dc.contributor.authorDa Silva, E. C F-
dc.contributor.authorLamas, T. E.-
dc.contributor.authorDuarte, C. A.-
dc.contributor.authorGusev, G. M.-
dc.date.accessioned2014-05-27T11:24:40Z-
dc.date.accessioned2016-10-25T18:28:30Z-
dc.date.available2014-05-27T11:24:40Z-
dc.date.available2016-10-25T18:28:30Z-
dc.date.issued2010-04-12-
dc.identifierhttp://dx.doi.org/10.1088/1742-6596/210/1/012052-
dc.identifier.citationJournal of Physics: Conference Series, v. 210.-
dc.identifier.issn1742-6588-
dc.identifier.issn1742-6596-
dc.identifier.urihttp://hdl.handle.net/11449/71652-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/71652-
dc.description.abstractIn this work the electronic structure of undoped AlGaAs/GaAs wide parabolic quantum wells (PQWs) with different well widths (1000 and 3000 ) were investigated by means of photoluminescence (PL) measurements. Due to the particular potential shape, the sample structure confines photocreated carriers with almost three-dimensional characteristics. Our data show that depending on the well width thickness it is possible to observe very narrow structures in the PL spectra, which were ascribed to emissions associated to the recombination of confined 1s-excitons of the parabolic potential wells. From our measurements, the exciton binding energies (of a few meV) were estimated. Besides the exciton emission, we have also observed PL emissions associated to electrons in the excited subbands of the PQWs. © 2010 IOP Publishing Ltd.en
dc.language.isoeng-
dc.sourceScopus-
dc.subjectAlGaAs/GaAs-
dc.subjectExciton emission-
dc.subjectExciton-binding energy-
dc.subjectParabolic potential-
dc.subjectParabolic quantum wells-
dc.subjectPhotoluminescence measurements-
dc.subjectPL emission-
dc.subjectPL spectra-
dc.subjectSample structure-
dc.subjectSub-bands-
dc.subjectThree-dimensional characteristics-
dc.subjectWell width-
dc.subjectBinding energy-
dc.subjectElectronic structure-
dc.subjectExcitons-
dc.subjectThree dimensional-
dc.subjectSemiconductor quantum wells-
dc.titleExcitons in undoped AlGaAs/GaAs wide parabolic quantum wellsen
dc.typeoutro-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.contributor.institutionUniversidade de São Paulo (USP)-
dc.description.affiliationDepartamento de Física Universidade Estadual Paulista, 17033-360 Bauru-
dc.description.affiliationInstituto de Física Universidade de so Paulo, 05315-970, So Paulo-
dc.description.affiliationUnespDepartamento de Física Universidade Estadual Paulista, 17033-360 Bauru-
dc.identifier.doi10.1088/1742-6596/210/1/012052-
dc.identifier.wosWOS:000289715800264-
dc.rights.accessRightsAcesso aberto-
dc.identifier.fileWOS000289715800264.pdf-
dc.relation.ispartofJournal of Physics: Conference Series-
dc.identifier.scopus2-s2.0-77950480399-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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