New results on bound excitons in quantum wells

Detalhes bibliográficos
Autor(a) principal: Oliveira, José Brás Barreto de [UNESP]
Data de Publicação: 1997
Outros Autores: Meneses, E. A., Da Silva, E. C F
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://www.sbfisica.org.br/bjp/files/v27a_194.pdf
http://hdl.handle.net/11449/65323
Resumo: The formation of bound excitons (BE) is investigated for a GaAs/GaAlAs multiple quantum well (QW) system. The photoluminescence (PL) spectra are analysed as a function of the excitation energy. It was found that the carriers photogeneration, either in the barrier or directly in the well, do not play an important role on the BE formation. We conclude that defects localized at interfaces are ionized by of capture charges which in turn bound the free exciton (FE).
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spelling New results on bound excitons in quantum wellsThe formation of bound excitons (BE) is investigated for a GaAs/GaAlAs multiple quantum well (QW) system. The photoluminescence (PL) spectra are analysed as a function of the excitation energy. It was found that the carriers photogeneration, either in the barrier or directly in the well, do not play an important role on the BE formation. We conclude that defects localized at interfaces are ionized by of capture charges which in turn bound the free exciton (FE).Departamento de Física - FC Universidade Estadual Paulista, Caixa Postal 473, 17033-360 Bauru, SPInstituto de Física Gleb Wataghin Universidade Estadual de Campinas, Caixa Postal 6165, 17083-970, Campinas, SPInstituto de Física Universidade de São Paulo, Caixa Postal 66318, 05389-970, São Paulo, SPDepartamento de Física - FC Universidade Estadual Paulista, Caixa Postal 473, 17033-360 Bauru, SPUniversidade Estadual Paulista (Unesp)Universidade Estadual de Campinas (UNICAMP)Universidade de São Paulo (USP)Oliveira, José Brás Barreto de [UNESP]Meneses, E. A.Da Silva, E. C F2014-05-27T11:18:19Z2014-05-27T11:18:19Z1997-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article194-197application/pdfhttp://www.sbfisica.org.br/bjp/files/v27a_194.pdfBrazilian Journal of Physics, v. 27, n. 4, p. 194-197, 1997.0103-9733http://hdl.handle.net/11449/653232-s2.0-00313227132-s2.0-0031322713.pdf6977466698742311Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBrazilian Journal of Physics1.0820,276info:eu-repo/semantics/openAccess2024-04-25T17:40:31Zoai:repositorio.unesp.br:11449/65323Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T23:57:58.055982Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv New results on bound excitons in quantum wells
title New results on bound excitons in quantum wells
spellingShingle New results on bound excitons in quantum wells
Oliveira, José Brás Barreto de [UNESP]
title_short New results on bound excitons in quantum wells
title_full New results on bound excitons in quantum wells
title_fullStr New results on bound excitons in quantum wells
title_full_unstemmed New results on bound excitons in quantum wells
title_sort New results on bound excitons in quantum wells
author Oliveira, José Brás Barreto de [UNESP]
author_facet Oliveira, José Brás Barreto de [UNESP]
Meneses, E. A.
Da Silva, E. C F
author_role author
author2 Meneses, E. A.
Da Silva, E. C F
author2_role author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Universidade Estadual de Campinas (UNICAMP)
Universidade de São Paulo (USP)
dc.contributor.author.fl_str_mv Oliveira, José Brás Barreto de [UNESP]
Meneses, E. A.
Da Silva, E. C F
description The formation of bound excitons (BE) is investigated for a GaAs/GaAlAs multiple quantum well (QW) system. The photoluminescence (PL) spectra are analysed as a function of the excitation energy. It was found that the carriers photogeneration, either in the barrier or directly in the well, do not play an important role on the BE formation. We conclude that defects localized at interfaces are ionized by of capture charges which in turn bound the free exciton (FE).
publishDate 1997
dc.date.none.fl_str_mv 1997-12-01
2014-05-27T11:18:19Z
2014-05-27T11:18:19Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.sbfisica.org.br/bjp/files/v27a_194.pdf
Brazilian Journal of Physics, v. 27, n. 4, p. 194-197, 1997.
0103-9733
http://hdl.handle.net/11449/65323
2-s2.0-0031322713
2-s2.0-0031322713.pdf
6977466698742311
url http://www.sbfisica.org.br/bjp/files/v27a_194.pdf
http://hdl.handle.net/11449/65323
identifier_str_mv Brazilian Journal of Physics, v. 27, n. 4, p. 194-197, 1997.
0103-9733
2-s2.0-0031322713
2-s2.0-0031322713.pdf
6977466698742311
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Brazilian Journal of Physics
1.082
0,276
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 194-197
application/pdf
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808129567394627584

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