Characterization, luminescence and optical resonant modes of Eu-Li Co-Doped ZnO Nano- and microstructures

ZnO nano- and microstructures co-doped with Eu and Li with different nominal concentrations of Li were grown using a solid vapor method. Different morphologies were obtained depending on the initial Li content in the precursors, varying from hexagonal rods which grow on the pellet when no Li is adde...

ver descrição completa

Detalhes bibliográficos
Autores: Pavón Martínez, Fernando, Urbieta Quiroga, Ana Irene, Fernández Sánchez, Paloma
Formato: artículo
Fecha de publicación:2022
País:España
Recursos:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/71972
Acesso em linha:https://hdl.handle.net/20.500.14352/71972
Access Level:acceso abierto
Palavra-chave:538.9
Thermal evaporation
Growth-mechanism
Nanostructures
Nanophosphor
Nanowires
Luminescence
ZnO
Rare earth doping
Física de materiales
Física del estado sólido
2211 Física del Estado Sólido
id ES_fefd4523532fc086b32f2e47e5368a3a
oai_identifier_str oai:docta.ucm.es:20.500.14352/71972
network_acronym_str ES
network_name_str España
repository_id_str
spelling Characterization, luminescence and optical resonant modes of Eu-Li Co-Doped ZnO Nano- and microstructuresPavón Martínez, FernandoUrbieta Quiroga, Ana IreneFernández Sánchez, Paloma538.9Thermal evaporationGrowth-mechanismNanostructuresNanophosphorNanowiresLuminescenceZnORare earth dopingFísica de materialesFísica del estado sólido2211 Física del Estado SólidoZnO nano- and microstructures co-doped with Eu and Li with different nominal concentrations of Li were grown using a solid vapor method. Different morphologies were obtained depending on the initial Li content in the precursors, varying from hexagonal rods which grow on the pellet when no Li is added to ribbons to sword-like structures growing onto the alumina boat as the Li amount increases. The changes in the energy of the crystallographic planes leading to variations in the growth directions were responsible for these morphological differences, as Electron Backscattered Diffraction analysis shows. The crystalline quality of the structures was investigated by X-ray diffraction and Raman spectroscopy, showing that all the structures grow in the ZnO wurtzite phase. The luminescence properties were also studied by means of both Cathodoluminescence (CL) and Photoluminescence (PL). Although the typical ZnO luminescence bands centered at 3.2 and 2.4 eV could be observed in all cases, variations in their relative intensity and small shifts in the peak position were found in the different samples. Furthermore, emissions related to intrashell transitions of Eu3+ ion were clearly visible. The good characteristics of the luminescent emissions and the high refraction index open the door to the fabrication of optical resonant cavities that allow the integration in optoelectronic devices. To study the optical cavity behavior of the grown structures, mu-PL investigations were performed. We demonstrated that the structures not only act as waveguides but also that Fabry-Perot optical resonant modes are established inside. Quality factors around 1000 in the UV region were obtained, which indicates the possibility of using these structures in photonics applications.MDPIUniversidad Complutense de Madrid20222022-07-0120222022-07-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/71972reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Atribución 3.0 Españahttps://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/719722026-06-02T12:44:21Z
dc.title.none.fl_str_mv Characterization, luminescence and optical resonant modes of Eu-Li Co-Doped ZnO Nano- and microstructures
title Characterization, luminescence and optical resonant modes of Eu-Li Co-Doped ZnO Nano- and microstructures
spellingShingle Characterization, luminescence and optical resonant modes of Eu-Li Co-Doped ZnO Nano- and microstructures
Pavón Martínez, Fernando
538.9
Thermal evaporation
Growth-mechanism
Nanostructures
Nanophosphor
Nanowires
Luminescence
ZnO
Rare earth doping
Física de materiales
Física del estado sólido
2211 Física del Estado Sólido
title_short Characterization, luminescence and optical resonant modes of Eu-Li Co-Doped ZnO Nano- and microstructures
title_full Characterization, luminescence and optical resonant modes of Eu-Li Co-Doped ZnO Nano- and microstructures
title_fullStr Characterization, luminescence and optical resonant modes of Eu-Li Co-Doped ZnO Nano- and microstructures
title_full_unstemmed Characterization, luminescence and optical resonant modes of Eu-Li Co-Doped ZnO Nano- and microstructures
title_sort Characterization, luminescence and optical resonant modes of Eu-Li Co-Doped ZnO Nano- and microstructures
dc.creator.none.fl_str_mv Pavón Martínez, Fernando
Urbieta Quiroga, Ana Irene
Fernández Sánchez, Paloma
author Pavón Martínez, Fernando
author_facet Pavón Martínez, Fernando
Urbieta Quiroga, Ana Irene
Fernández Sánchez, Paloma
author_role author
author2 Urbieta Quiroga, Ana Irene
Fernández Sánchez, Paloma
author2_role author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 538.9
Thermal evaporation
Growth-mechanism
Nanostructures
Nanophosphor
Nanowires
Luminescence
ZnO
Rare earth doping
Física de materiales
Física del estado sólido
2211 Física del Estado Sólido
topic 538.9
Thermal evaporation
Growth-mechanism
Nanostructures
Nanophosphor
Nanowires
Luminescence
ZnO
Rare earth doping
Física de materiales
Física del estado sólido
2211 Física del Estado Sólido
description ZnO nano- and microstructures co-doped with Eu and Li with different nominal concentrations of Li were grown using a solid vapor method. Different morphologies were obtained depending on the initial Li content in the precursors, varying from hexagonal rods which grow on the pellet when no Li is added to ribbons to sword-like structures growing onto the alumina boat as the Li amount increases. The changes in the energy of the crystallographic planes leading to variations in the growth directions were responsible for these morphological differences, as Electron Backscattered Diffraction analysis shows. The crystalline quality of the structures was investigated by X-ray diffraction and Raman spectroscopy, showing that all the structures grow in the ZnO wurtzite phase. The luminescence properties were also studied by means of both Cathodoluminescence (CL) and Photoluminescence (PL). Although the typical ZnO luminescence bands centered at 3.2 and 2.4 eV could be observed in all cases, variations in their relative intensity and small shifts in the peak position were found in the different samples. Furthermore, emissions related to intrashell transitions of Eu3+ ion were clearly visible. The good characteristics of the luminescent emissions and the high refraction index open the door to the fabrication of optical resonant cavities that allow the integration in optoelectronic devices. To study the optical cavity behavior of the grown structures, mu-PL investigations were performed. We demonstrated that the structures not only act as waveguides but also that Fabry-Perot optical resonant modes are established inside. Quality factors around 1000 in the UV region were obtained, which indicates the possibility of using these structures in photonics applications.
publishDate 2022
dc.date.none.fl_str_mv 2022
2022-07-01
2022
2022-07-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/71972
url https://hdl.handle.net/20.500.14352/71972
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución 3.0 España
https://creativecommons.org/licenses/by/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución 3.0 España
https://creativecommons.org/licenses/by/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869425734475317248
score 15,301603

Registos relacionados