Pseudopotential Study of CdTe Quantum Dots: Electronic and Optical Properties

Detalhes bibliográficos
Autor(a) principal: Mezrag,Fadila
Data de Publicação: 2019
Outros Autores: Bouarissa,Nadir
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000300232
Resumo: The present contribution reports on the electronic and optical properties of zinc-blende CdTe quantum dots using a pseudopotential approach. Our findings showed that the predicted nano-structured direct band gap is significantly increased relative to the bulk one. For a nanocrystal diameter in the range 1.2-5 nm, the refractive index and dielectric constant are found to be highly reduced relative the bulk values. Beyond a nanocrystal diameter of 5 nm, the size dependence of all features of interest becomes weak and tends towards retrieving the bulk value.
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spelling Pseudopotential Study of CdTe Quantum Dots: Electronic and Optical PropertiesElectronic propertiesOptical constantsQuantum dotsCdTePseudopotentialsThe present contribution reports on the electronic and optical properties of zinc-blende CdTe quantum dots using a pseudopotential approach. Our findings showed that the predicted nano-structured direct band gap is significantly increased relative to the bulk one. For a nanocrystal diameter in the range 1.2-5 nm, the refractive index and dielectric constant are found to be highly reduced relative the bulk values. Beyond a nanocrystal diameter of 5 nm, the size dependence of all features of interest becomes weak and tends towards retrieving the bulk value.ABM, ABC, ABPol2019-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000300232Materials Research v.22 n.3 2019reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/1980-5373-mr-2017-1146info:eu-repo/semantics/openAccessMezrag,FadilaBouarissa,Nadireng2019-05-28T00:00:00Zoai:scielo:S1516-14392019000300232Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2019-05-28T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Pseudopotential Study of CdTe Quantum Dots: Electronic and Optical Properties
title Pseudopotential Study of CdTe Quantum Dots: Electronic and Optical Properties
spellingShingle Pseudopotential Study of CdTe Quantum Dots: Electronic and Optical Properties
Mezrag,Fadila
Electronic properties
Optical constants
Quantum dots
CdTe
Pseudopotentials
title_short Pseudopotential Study of CdTe Quantum Dots: Electronic and Optical Properties
title_full Pseudopotential Study of CdTe Quantum Dots: Electronic and Optical Properties
title_fullStr Pseudopotential Study of CdTe Quantum Dots: Electronic and Optical Properties
title_full_unstemmed Pseudopotential Study of CdTe Quantum Dots: Electronic and Optical Properties
title_sort Pseudopotential Study of CdTe Quantum Dots: Electronic and Optical Properties
author Mezrag,Fadila
author_facet Mezrag,Fadila
Bouarissa,Nadir
author_role author
author2 Bouarissa,Nadir
author2_role author
dc.contributor.author.fl_str_mv Mezrag,Fadila
Bouarissa,Nadir
dc.subject.por.fl_str_mv Electronic properties
Optical constants
Quantum dots
CdTe
Pseudopotentials
topic Electronic properties
Optical constants
Quantum dots
CdTe
Pseudopotentials
description The present contribution reports on the electronic and optical properties of zinc-blende CdTe quantum dots using a pseudopotential approach. Our findings showed that the predicted nano-structured direct band gap is significantly increased relative to the bulk one. For a nanocrystal diameter in the range 1.2-5 nm, the refractive index and dielectric constant are found to be highly reduced relative the bulk values. Beyond a nanocrystal diameter of 5 nm, the size dependence of all features of interest becomes weak and tends towards retrieving the bulk value.
publishDate 2019
dc.date.none.fl_str_mv 2019-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000300232
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000300232
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1980-5373-mr-2017-1146
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.22 n.3 2019
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
_version_ 1754212674799927296

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