Optical characterization and bandgap engineering of flat and wrinkle-textured FA0.83 Cs0.17 Pb(I1 − xBrx)3 perovskite thin films

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The complex refractive indices of formamidinium cesium lead mixed-halide (FA0.83Cs0.17Pb(I1 − xBrx)3) perovskite thin films of compositions ranging from x = 0 to 0.4, with both flat and wrinkle-textured surface topographies, are reported. Films are characterized using a combination of variable angle...

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Detalles Bibliográficos
Autor: Tejada Esteves, Alvaro
Formato: tesis de maestría
Fecha de Publicación:2018
Institución:Consejo Nacional de Ciencia Tecnología e Innovación
Repositorio:CONCYTEC-Institucional
Lenguaje:inglés
OAI Identifier:oai:repositorio.concytec.gob.pe:20.500.12390/1558
Enlace del recurso:https://hdl.handle.net/20.500.12390/1558
Nivel de acceso:acceso abierto
Materia:Perovskita
Óptica
Películas delgadas
https://purl.org/pe-repo/ocde/ford#1.03.00
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oai_identifier_str oai:repositorio.concytec.gob.pe:20.500.12390/1558
network_acronym_str CONC
network_name_str CONCYTEC-Institucional
repository_id_str 4689
dc.title.none.fl_str_mv Optical characterization and bandgap engineering of flat and wrinkle-textured FA0.83 Cs0.17 Pb(I1 − xBrx)3 perovskite thin films
title Optical characterization and bandgap engineering of flat and wrinkle-textured FA0.83 Cs0.17 Pb(I1 − xBrx)3 perovskite thin films
spellingShingle Optical characterization and bandgap engineering of flat and wrinkle-textured FA0.83 Cs0.17 Pb(I1 − xBrx)3 perovskite thin films
Tejada Esteves, Alvaro
Perovskita
Óptica
Óptica
Películas delgadas
https://purl.org/pe-repo/ocde/ford#1.03.00
title_short Optical characterization and bandgap engineering of flat and wrinkle-textured FA0.83 Cs0.17 Pb(I1 − xBrx)3 perovskite thin films
title_full Optical characterization and bandgap engineering of flat and wrinkle-textured FA0.83 Cs0.17 Pb(I1 − xBrx)3 perovskite thin films
title_fullStr Optical characterization and bandgap engineering of flat and wrinkle-textured FA0.83 Cs0.17 Pb(I1 − xBrx)3 perovskite thin films
title_full_unstemmed Optical characterization and bandgap engineering of flat and wrinkle-textured FA0.83 Cs0.17 Pb(I1 − xBrx)3 perovskite thin films
title_sort Optical characterization and bandgap engineering of flat and wrinkle-textured FA0.83 Cs0.17 Pb(I1 − xBrx)3 perovskite thin films
author Tejada Esteves, Alvaro
author_facet Tejada Esteves, Alvaro
author_role author
dc.contributor.author.fl_str_mv Tejada Esteves, Alvaro
dc.subject.none.fl_str_mv Perovskita
topic Perovskita
Óptica
Óptica
Películas delgadas
https://purl.org/pe-repo/ocde/ford#1.03.00
dc.subject.es_PE.fl_str_mv Óptica
Óptica
Películas delgadas
dc.subject.ocde.none.fl_str_mv https://purl.org/pe-repo/ocde/ford#1.03.00
description The complex refractive indices of formamidinium cesium lead mixed-halide (FA0.83Cs0.17Pb(I1 − xBrx)3) perovskite thin films of compositions ranging from x = 0 to 0.4, with both flat and wrinkle-textured surface topographies, are reported. Films are characterized using a combination of variable angle spectroscopic ellipsometry and spectral transmittance in the wavelength range of 190 nm to 850 nm. Optical constants, film thicknesses and roughness layers are obtained point-by-point by minimizing a global error function, without using optical dispersion models, and including topographical information supplied by a laser confocal microscope. To evaluate the bandgap engineering potential of the material, the optical bandgaps and Urbach energies are then accurately determined by applying a band fluctuations model for direct semiconductors, which considers both the Urbach tail and the fundamental band-to-band absorption region in a single equation. With this information, the composition yielding the optimum bandgap of 1.75 eV for a Si-perovskite tandem solar cell is determined.
publishDate 2018
dc.date.accessioned.none.fl_str_mv 2024-05-30T23:13:38Z
dc.date.available.none.fl_str_mv 2024-05-30T23:13:38Z
dc.date.issued.fl_str_mv 2018
dc.type.none.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
dc.identifier.uri.none.fl_str_mv https://hdl.handle.net/20.500.12390/1558
url https://hdl.handle.net/20.500.12390/1558
dc.language.iso.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
dc.rights.uri.none.fl_str_mv http://creativecommons.org/licenses/by-nc-nd/2.5/pe/
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/2.5/pe/
dc.publisher.none.fl_str_mv Pontificia Universidad Católica del Perú
publisher.none.fl_str_mv Pontificia Universidad Católica del Perú
dc.source.none.fl_str_mv reponame:CONCYTEC-Institucional
instname:Consejo Nacional de Ciencia Tecnología e Innovación
instacron:CONCYTEC
instname_str Consejo Nacional de Ciencia Tecnología e Innovación
instacron_str CONCYTEC
institution CONCYTEC
reponame_str CONCYTEC-Institucional
collection CONCYTEC-Institucional
repository.name.fl_str_mv Repositorio Institucional CONCYTEC
repository.mail.fl_str_mv repositorio@concytec.gob.pe
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spelling Publicationrp04402600Tejada Esteves, Alvaro2024-05-30T23:13:38Z2024-05-30T23:13:38Z2018https://hdl.handle.net/20.500.12390/1558The complex refractive indices of formamidinium cesium lead mixed-halide (FA0.83Cs0.17Pb(I1 − xBrx)3) perovskite thin films of compositions ranging from x = 0 to 0.4, with both flat and wrinkle-textured surface topographies, are reported. Films are characterized using a combination of variable angle spectroscopic ellipsometry and spectral transmittance in the wavelength range of 190 nm to 850 nm. Optical constants, film thicknesses and roughness layers are obtained point-by-point by minimizing a global error function, without using optical dispersion models, and including topographical information supplied by a laser confocal microscope. To evaluate the bandgap engineering potential of the material, the optical bandgaps and Urbach energies are then accurately determined by applying a band fluctuations model for direct semiconductors, which considers both the Urbach tail and the fundamental band-to-band absorption region in a single equation. With this information, the composition yielding the optimum bandgap of 1.75 eV for a Si-perovskite tandem solar cell is determined.Fondo Nacional de Desarrollo Científico y Tecnológico - FondecytengPontificia Universidad Católica del Perúinfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/2.5/pe/PerovskitaÓptica-1Óptica-1Películas delgadas-1https://purl.org/pe-repo/ocde/ford#1.03.00-1Optical characterization and bandgap engineering of flat and wrinkle-textured FA0.83 Cs0.17 Pb(I1 − xBrx)3 perovskite thin filmsinfo:eu-repo/semantics/masterThesisreponame:CONCYTEC-Institucionalinstname:Consejo Nacional de Ciencia Tecnología e Innovacióninstacron:CONCYTEC#PLACEHOLDER_PARENT_METADATA_VALUE#20.500.12390/1558oai:repositorio.concytec.gob.pe:20.500.12390/15582024-05-30 15:38:11.198http://creativecommons.org/licenses/by-nc-nd/2.5/pe/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_14cbinfo:eu-repo/semantics/closedAccessmetadata only accesshttps://repositorio.concytec.gob.peRepositorio Institucional CONCYTECrepositorio@concytec.gob.pe#PLACEHOLDER_PARENT_METADATA_VALUE#<Publication xmlns="https://www.openaire.eu/cerif-profile/1.1/" id="40e20c7d-8e2a-4b0e-bb3d-5b39c2580442"> <Type xmlns="https://www.openaire.eu/cerif-profile/vocab/COAR_Publication_Types">http://purl.org/coar/resource_type/c_1843</Type> <Language>eng</Language> <Title>Optical characterization and bandgap engineering of flat and wrinkle-textured FA0.83 Cs0.17 Pb(I1 − xBrx)3 perovskite thin films</Title> <PublishedIn> <Publication> </Publication> </PublishedIn> <PublicationDate>2018</PublicationDate> <Authors> <Author> <DisplayName>Tejada Esteves, Alvaro</DisplayName> <Person id="rp04402" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> </Authors> <Editors> </Editors> <Publishers> <Publisher> <DisplayName>Pontificia Universidad Católica del Perú</DisplayName> <OrgUnit /> </Publisher> </Publishers> <License>http://creativecommons.org/licenses/by-nc-nd/2.5/pe/</License> <Keyword>Perovskita</Keyword> <Keyword>Óptica</Keyword> <Keyword>Óptica</Keyword> <Keyword>Películas delgadas</Keyword> <Abstract>The complex refractive indices of formamidinium cesium lead mixed-halide (FA0.83Cs0.17Pb(I1 − xBrx)3) perovskite thin films of compositions ranging from x = 0 to 0.4, with both flat and wrinkle-textured surface topographies, are reported. Films are characterized using a combination of variable angle spectroscopic ellipsometry and spectral transmittance in the wavelength range of 190 nm to 850 nm. Optical constants, film thicknesses and roughness layers are obtained point-by-point by minimizing a global error function, without using optical dispersion models, and including topographical information supplied by a laser confocal microscope. To evaluate the bandgap engineering potential of the material, the optical bandgaps and Urbach energies are then accurately determined by applying a band fluctuations model for direct semiconductors, which considers both the Urbach tail and the fundamental band-to-band absorption region in a single equation. With this information, the composition yielding the optimum bandgap of 1.75 eV for a Si-perovskite tandem solar cell is determined.</Abstract> <Access xmlns="http://purl.org/coar/access_right" > </Access> </Publication> -1
score 13.427304
Optical characterization and bandgap engineering of flat and wrinkle-textured FA0.83 Cs0.17 Pb(I1 − xBrx)3 perovskite thin films
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La información contenida en este registro es de entera responsabilidad de la institución que gestiona el repositorio institucional donde esta contenido este documento o set de datos. El CONCYTEC no se hace responsable por los contenidos (publicaciones y/o datos) accesibles a través del Repositorio Nacional Digital de Ciencia, Tecnología e Innovación de Acceso Abierto (ALICIA).

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