Electrical transport mechanisms of Neodymium-doped rare-earth semiconductors

Autores
Vaz, Isabela C. F.; Macchi, Carlos Eugenio; Somoza, Alberto Horacio; Rocha, Leandro S. R.; Longo, Elson; Cabral, Luis; da Silva, Edison Z.; Simões, Alexandre Zirpoli; Zonta, Giulia; Malagu, Cesare; Desimone, Paula Mariela; Ponce, Miguel Adolfo; Moura, Francisco
Año de publicación
2022
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This study reports the electrical properties of Nd-doped cerium oxide (CeO2) films synthesized by microwave assisted hydrothermal using a two-point probe technique. Positron annihilation lifetime spectroscopy studies evidenced that, as the Nd content rises, a structural disorder occurs. This is caused by an increase in oxygen vacancies surrounded with Nd (defective clusters), with the mean lifetime components ranging between 290 and 300 ps. Particle size estimation showed values from 8.6 to 28.9 nm. Along with the increase of neodymium impurities, also the conductivity increases, due to the hopping conduction mechanism between defective species. This gives rise to a response time of only 6 s, turning these materials candidates to realize gas sensor devices. Ab initio investigations showed that the improved electric conduction is boosted mostly by the reduced Nd2+ than the Ce3+, where the oxygen vacancies play a fundamental role.
Fil: Vaz, Isabela C. F.. Federal University of Itajubá; Brasil
Fil: Macchi, Carlos Eugenio. Universidad Nacional del Centro de la Provincia de Buenos Aires; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Somoza, Alberto Horacio. Universidad Nacional del Centro de la Provincia de Buenos Aires; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Rocha, Leandro S. R.. Universidade Federal do São Carlos; Brasil
Fil: Longo, Elson. Universidade Federal do São Carlos; Brasil
Fil: Cabral, Luis. Universidade Estadual de Campinas; Brasil
Fil: da Silva, Edison Z.. Universidade Estadual de Campinas; Brasil
Fil: Simões, Alexandre Zirpoli. Universidade Estadual Paulista Julio de Mesquita Filho; Brasil
Fil: Zonta, Giulia. Università di Ferrara; Italia
Fil: Malagu, Cesare. Università di Ferrara; Italia
Fil: Desimone, Paula Mariela. Universidad Nacional de Mar del Plata; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Fil: Ponce, Miguel Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina. Universidad Nacional de Mar del Plata; Argentina
Fil: Moura, Francisco. Federal University of Itajubá; Brasil
Materia
Nd-doped cerium oxide
Positron annihilation lifetime spectroscopy
Density functional theory
Microwave-assisted hydrothermal
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/213563
Acceder
id CONICETDig_598cedd0d5804c7e816485b4345589e1
oai_identifier_str oai:ri.conicet.gov.ar:11336/213563
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Electrical transport mechanisms of Neodymium-doped rare-earth semiconductorsVaz, Isabela C. F.Macchi, Carlos EugenioSomoza, Alberto HoracioRocha, Leandro S. R.Longo, ElsonCabral, Luisda Silva, Edison Z.Simões, Alexandre ZirpoliZonta, GiuliaMalagu, CesareDesimone, Paula MarielaPonce, Miguel AdolfoMoura, FranciscoNd-doped cerium oxidePositron annihilation lifetime spectroscopyDensity functional theoryMicrowave-assisted hydrothermalhttps://purl.org/becyt/ford/2.10https://purl.org/becyt/ford/2This study reports the electrical properties of Nd-doped cerium oxide (CeO2) films synthesized by microwave assisted hydrothermal using a two-point probe technique. Positron annihilation lifetime spectroscopy studies evidenced that, as the Nd content rises, a structural disorder occurs. This is caused by an increase in oxygen vacancies surrounded with Nd (defective clusters), with the mean lifetime components ranging between 290 and 300 ps. Particle size estimation showed values from 8.6 to 28.9 nm. Along with the increase of neodymium impurities, also the conductivity increases, due to the hopping conduction mechanism between defective species. This gives rise to a response time of only 6 s, turning these materials candidates to realize gas sensor devices. Ab initio investigations showed that the improved electric conduction is boosted mostly by the reduced Nd2+ than the Ce3+, where the oxygen vacancies play a fundamental role.Fil: Vaz, Isabela C. F.. Federal University of Itajubá; BrasilFil: Macchi, Carlos Eugenio. Universidad Nacional del Centro de la Provincia de Buenos Aires; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Somoza, Alberto Horacio. Universidad Nacional del Centro de la Provincia de Buenos Aires; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Rocha, Leandro S. R.. Universidade Federal do São Carlos; BrasilFil: Longo, Elson. Universidade Federal do São Carlos; BrasilFil: Cabral, Luis. Universidade Estadual de Campinas; BrasilFil: da Silva, Edison Z.. Universidade Estadual de Campinas; BrasilFil: Simões, Alexandre Zirpoli. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Zonta, Giulia. Università di Ferrara; ItaliaFil: Malagu, Cesare. Università di Ferrara; ItaliaFil: Desimone, Paula Mariela. Universidad Nacional de Mar del Plata; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; ArgentinaFil: Ponce, Miguel Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina. Universidad Nacional de Mar del Plata; ArgentinaFil: Moura, Francisco. Federal University of Itajubá; BrasilSpringer2022-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/213563Vaz, Isabela C. F.; Macchi, Carlos Eugenio; Somoza, Alberto Horacio; Rocha, Leandro S. R.; Longo, Elson; et al.; Electrical transport mechanisms of Neodymium-doped rare-earth semiconductors; Springer; Journal of Materials Science: Materials in Electronics; 33; 15; 5-2022; 11632-116490957-4522CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1007/s10854-022-08098-9info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s10854-022-08098-9info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-08-25T14:59:51Zoai:ri.conicet.gov.ar:11336/213563instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982026-08-25 14:59:51.873CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Electrical transport mechanisms of Neodymium-doped rare-earth semiconductors
title Electrical transport mechanisms of Neodymium-doped rare-earth semiconductors
spellingShingle Electrical transport mechanisms of Neodymium-doped rare-earth semiconductors
Vaz, Isabela C. F.
Nd-doped cerium oxide
Positron annihilation lifetime spectroscopy
Density functional theory
Microwave-assisted hydrothermal
title_short Electrical transport mechanisms of Neodymium-doped rare-earth semiconductors
title_full Electrical transport mechanisms of Neodymium-doped rare-earth semiconductors
title_fullStr Electrical transport mechanisms of Neodymium-doped rare-earth semiconductors
title_full_unstemmed Electrical transport mechanisms of Neodymium-doped rare-earth semiconductors
title_sort Electrical transport mechanisms of Neodymium-doped rare-earth semiconductors
dc.creator.none.fl_str_mv Vaz, Isabela C. F.
Macchi, Carlos Eugenio
Somoza, Alberto Horacio
Rocha, Leandro S. R.
Longo, Elson
Cabral, Luis
da Silva, Edison Z.
Simões, Alexandre Zirpoli
Zonta, Giulia
Malagu, Cesare
Desimone, Paula Mariela
Ponce, Miguel Adolfo
Moura, Francisco
author Vaz, Isabela C. F.
author_facet Vaz, Isabela C. F.
Macchi, Carlos Eugenio
Somoza, Alberto Horacio
Rocha, Leandro S. R.
Longo, Elson
Cabral, Luis
da Silva, Edison Z.
Simões, Alexandre Zirpoli
Zonta, Giulia
Malagu, Cesare
Desimone, Paula Mariela
Ponce, Miguel Adolfo
Moura, Francisco
author_role author
author2 Macchi, Carlos Eugenio
Somoza, Alberto Horacio
Rocha, Leandro S. R.
Longo, Elson
Cabral, Luis
da Silva, Edison Z.
Simões, Alexandre Zirpoli
Zonta, Giulia
Malagu, Cesare
Desimone, Paula Mariela
Ponce, Miguel Adolfo
Moura, Francisco
author2_role author
author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Nd-doped cerium oxide
Positron annihilation lifetime spectroscopy
Density functional theory
Microwave-assisted hydrothermal
topic Nd-doped cerium oxide
Positron annihilation lifetime spectroscopy
Density functional theory
Microwave-assisted hydrothermal
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.10
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv This study reports the electrical properties of Nd-doped cerium oxide (CeO2) films synthesized by microwave assisted hydrothermal using a two-point probe technique. Positron annihilation lifetime spectroscopy studies evidenced that, as the Nd content rises, a structural disorder occurs. This is caused by an increase in oxygen vacancies surrounded with Nd (defective clusters), with the mean lifetime components ranging between 290 and 300 ps. Particle size estimation showed values from 8.6 to 28.9 nm. Along with the increase of neodymium impurities, also the conductivity increases, due to the hopping conduction mechanism between defective species. This gives rise to a response time of only 6 s, turning these materials candidates to realize gas sensor devices. Ab initio investigations showed that the improved electric conduction is boosted mostly by the reduced Nd2+ than the Ce3+, where the oxygen vacancies play a fundamental role.
Fil: Vaz, Isabela C. F.. Federal University of Itajubá; Brasil
Fil: Macchi, Carlos Eugenio. Universidad Nacional del Centro de la Provincia de Buenos Aires; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Somoza, Alberto Horacio. Universidad Nacional del Centro de la Provincia de Buenos Aires; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Rocha, Leandro S. R.. Universidade Federal do São Carlos; Brasil
Fil: Longo, Elson. Universidade Federal do São Carlos; Brasil
Fil: Cabral, Luis. Universidade Estadual de Campinas; Brasil
Fil: da Silva, Edison Z.. Universidade Estadual de Campinas; Brasil
Fil: Simões, Alexandre Zirpoli. Universidade Estadual Paulista Julio de Mesquita Filho; Brasil
Fil: Zonta, Giulia. Università di Ferrara; Italia
Fil: Malagu, Cesare. Università di Ferrara; Italia
Fil: Desimone, Paula Mariela. Universidad Nacional de Mar del Plata; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Fil: Ponce, Miguel Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina. Universidad Nacional de Mar del Plata; Argentina
Fil: Moura, Francisco. Federal University of Itajubá; Brasil
description This study reports the electrical properties of Nd-doped cerium oxide (CeO2) films synthesized by microwave assisted hydrothermal using a two-point probe technique. Positron annihilation lifetime spectroscopy studies evidenced that, as the Nd content rises, a structural disorder occurs. This is caused by an increase in oxygen vacancies surrounded with Nd (defective clusters), with the mean lifetime components ranging between 290 and 300 ps. Particle size estimation showed values from 8.6 to 28.9 nm. Along with the increase of neodymium impurities, also the conductivity increases, due to the hopping conduction mechanism between defective species. This gives rise to a response time of only 6 s, turning these materials candidates to realize gas sensor devices. Ab initio investigations showed that the improved electric conduction is boosted mostly by the reduced Nd2+ than the Ce3+, where the oxygen vacancies play a fundamental role.
publishDate 2022
dc.date.none.fl_str_mv 2022-05
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/213563
Vaz, Isabela C. F.; Macchi, Carlos Eugenio; Somoza, Alberto Horacio; Rocha, Leandro S. R.; Longo, Elson; et al.; Electrical transport mechanisms of Neodymium-doped rare-earth semiconductors; Springer; Journal of Materials Science: Materials in Electronics; 33; 15; 5-2022; 11632-11649
0957-4522
CONICET Digital
CONICET
url http://hdl.handle.net/11336/213563
identifier_str_mv Vaz, Isabela C. F.; Macchi, Carlos Eugenio; Somoza, Alberto Horacio; Rocha, Leandro S. R.; Longo, Elson; et al.; Electrical transport mechanisms of Neodymium-doped rare-earth semiconductors; Springer; Journal of Materials Science: Materials in Electronics; 33; 15; 5-2022; 11632-11649
0957-4522
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1007/s10854-022-08098-9
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s10854-022-08098-9
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1874774996635615232
score 13.265058

Publicaciones similares