Photoluminescent properties of ZrO2: Tm3+, Tb3+, Eu3+ powders — A combined experimental and theoretical study
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRN |
Texto Completo: | https://repositorio.ufrn.br/handle/123456789/32242 |
Resumo: | Rare-earth (RE) element-based materials for optical applications have received increasing attention owing to the emission properties of RE ions, which render these materials suitable for use in color displays, lasers, and solid-state lighting. In the present work, ZrO2:RE (RE = Tm3+, Tb3+, and Eu3+) powders were obtained via complex polymerization, and characterized by means of X-ray diffraction (XRD), Raman spectroscopy, UV–visible absorption spectroscopy, and photoluminescence measurements. The XRD patterns and Raman spectra revealed the tetragonal phase of ZrO2 co-doped with up to 4 mol.% RE3+ and stabilization of the cubic phase, for up to 8 mol.% RE3+. In addition, the photoluminescence measurements revealed simultaneous emissions in the blue (477 nm), green (496.02 nm and 548.32 nm), and red-orange (597.16 nm and 617.54 nm) regions. These emissions result from the Tm3+, Tb 3+, and Eu3+ ions, respectively. Energy transfers, such as 1G4 levels (Tm3+) → 5D4 (Tb3+) and 5D4 levels (Tb3+) → 5D0 (Eu3+), occurred during the emission process. Calculations based on density functional theory (DFT) were performed, to complement the experimental data. The results revealed that structural order/disorder effects were generated in the cubic and tetragonal ZrO2 phases in the ZrO2:Eu3+ powders, and changes in the electronic structure were manifested as a decrease in the band gap values. The chromaticity coordinates of all the samples were determined from the PL spectrum. The coordinates, x = 0.34 and y = 0.34, of the ZrO2:8%RE sample corresponded to a point located in the white region of the CIE diagram and color correlated temperature (CCT) was found to be 5181 K. More importantly, the present results indicate that ZrO2:RE powders constitute promising photoluminescent materials for use in new lighting devices. |
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Paskocimas, Carlos AlbertoLovisa, Laura XimenaAndrés, JuanGracia, LourdesLi, Maximo SiuDelmonte, Maurício Roberto BomioAraújo, Vinícius DantasSilva, Elson Longo daMotta, Fabiana Villela da2021-04-16T14:39:37Z2021-04-16T14:39:37Z2017-02-25LOVISA, L.X.; ANDRÉS, J.; GRACIA, L.; LI, M.s.; PASKOCIMAS, C.A.; BOMIO, M.R.D.; ARAUJO, V.D.; LONGO, E.; MOTTA, F.V.. Photoluminescent properties of ZrO2: tm3+, tb3+, eu3+ powders⠴a combined experimental and theoretical study. Journal Of Alloys And Compounds, [S.L.], v. 695, p. 3094-3103, fev. 2017. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0925838816338245?via%3Dihub. Acesso em: 11 dez. 2020. http://dx.doi.org/10.1016/j.jallcom.2016.11.341.0925-8388https://repositorio.ufrn.br/handle/123456789/3224210.1016/j.jallcom.2016.11.341ElsevierAttribution 3.0 Brazilhttp://creativecommons.org/licenses/by/3.0/br/info:eu-repo/semantics/openAccessREPhotoluminescenceDFT calculationsWhite LEDsPhotoluminescent properties of ZrO2: Tm3+, Tb3+, Eu3+ powders — A combined experimental and theoretical studyinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleRare-earth (RE) element-based materials for optical applications have received increasing attention owing to the emission properties of RE ions, which render these materials suitable for use in color displays, lasers, and solid-state lighting. In the present work, ZrO2:RE (RE = Tm3+, Tb3+, and Eu3+) powders were obtained via complex polymerization, and characterized by means of X-ray diffraction (XRD), Raman spectroscopy, UV–visible absorption spectroscopy, and photoluminescence measurements. The XRD patterns and Raman spectra revealed the tetragonal phase of ZrO2 co-doped with up to 4 mol.% RE3+ and stabilization of the cubic phase, for up to 8 mol.% RE3+. In addition, the photoluminescence measurements revealed simultaneous emissions in the blue (477 nm), green (496.02 nm and 548.32 nm), and red-orange (597.16 nm and 617.54 nm) regions. These emissions result from the Tm3+, Tb 3+, and Eu3+ ions, respectively. Energy transfers, such as 1G4 levels (Tm3+) → 5D4 (Tb3+) and 5D4 levels (Tb3+) → 5D0 (Eu3+), occurred during the emission process. Calculations based on density functional theory (DFT) were performed, to complement the experimental data. The results revealed that structural order/disorder effects were generated in the cubic and tetragonal ZrO2 phases in the ZrO2:Eu3+ powders, and changes in the electronic structure were manifested as a decrease in the band gap values. The chromaticity coordinates of all the samples were determined from the PL spectrum. The coordinates, x = 0.34 and y = 0.34, of the ZrO2:8%RE sample corresponded to a point located in the white region of the CIE diagram and color correlated temperature (CCT) was found to be 5181 K. More importantly, the present results indicate that ZrO2:RE powders constitute promising photoluminescent materials for use in new lighting devices.engreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNCC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8914https://repositorio.ufrn.br/bitstream/123456789/32242/2/license_rdf4d2950bda3d176f570a9f8b328dfbbefMD52LICENSElicense.txtlicense.txttext/plain; charset=utf-81484https://repositorio.ufrn.br/bitstream/123456789/32242/3/license.txte9597aa2854d128fd968be5edc8a28d9MD53ORIGINALPhotoluminescentPropertiesOfZrO2_PASKOCIMAS_2017.pdfPhotoluminescentPropertiesOfZrO2_PASKOCIMAS_2017.pdfapplication/pdf4658462https://repositorio.ufrn.br/bitstream/123456789/32242/1/PhotoluminescentPropertiesOfZrO2_PASKOCIMAS_2017.pdfbf4657e0d361a9b548e48e59ea6ec973MD51TEXTPhotoluminescentPropertiesOfZrO2_PASKOCIMAS_2017.pdf.txtPhotoluminescentPropertiesOfZrO2_PASKOCIMAS_2017.pdf.txtExtracted texttext/plain52879https://repositorio.ufrn.br/bitstream/123456789/32242/4/PhotoluminescentPropertiesOfZrO2_PASKOCIMAS_2017.pdf.txt9a88856346c828d28cd81ccde5dd1163MD54THUMBNAILPhotoluminescentPropertiesOfZrO2_PASKOCIMAS_2017.pdf.jpgPhotoluminescentPropertiesOfZrO2_PASKOCIMAS_2017.pdf.jpgGenerated Thumbnailimage/jpeg1627https://repositorio.ufrn.br/bitstream/123456789/32242/5/PhotoluminescentPropertiesOfZrO2_PASKOCIMAS_2017.pdf.jpga74dd55d0163fe77492079ff60faeae6MD55123456789/322422021-04-18 06:06:17.599oai:https://repositorio.ufrn.br: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Repositório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2021-04-18T09:06:17Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false |
dc.title.pt_BR.fl_str_mv |
Photoluminescent properties of ZrO2: Tm3+, Tb3+, Eu3+ powders — A combined experimental and theoretical study |
title |
Photoluminescent properties of ZrO2: Tm3+, Tb3+, Eu3+ powders — A combined experimental and theoretical study |
spellingShingle |
Photoluminescent properties of ZrO2: Tm3+, Tb3+, Eu3+ powders — A combined experimental and theoretical study Paskocimas, Carlos Alberto RE Photoluminescence DFT calculations White LEDs |
title_short |
Photoluminescent properties of ZrO2: Tm3+, Tb3+, Eu3+ powders — A combined experimental and theoretical study |
title_full |
Photoluminescent properties of ZrO2: Tm3+, Tb3+, Eu3+ powders — A combined experimental and theoretical study |
title_fullStr |
Photoluminescent properties of ZrO2: Tm3+, Tb3+, Eu3+ powders — A combined experimental and theoretical study |
title_full_unstemmed |
Photoluminescent properties of ZrO2: Tm3+, Tb3+, Eu3+ powders — A combined experimental and theoretical study |
title_sort |
Photoluminescent properties of ZrO2: Tm3+, Tb3+, Eu3+ powders — A combined experimental and theoretical study |
author |
Paskocimas, Carlos Alberto |
author_facet |
Paskocimas, Carlos Alberto Lovisa, Laura Ximena Andrés, Juan Gracia, Lourdes Li, Maximo Siu Delmonte, Maurício Roberto Bomio Araújo, Vinícius Dantas Silva, Elson Longo da Motta, Fabiana Villela da |
author_role |
author |
author2 |
Lovisa, Laura Ximena Andrés, Juan Gracia, Lourdes Li, Maximo Siu Delmonte, Maurício Roberto Bomio Araújo, Vinícius Dantas Silva, Elson Longo da Motta, Fabiana Villela da |
author2_role |
author author author author author author author author |
dc.contributor.author.fl_str_mv |
Paskocimas, Carlos Alberto Lovisa, Laura Ximena Andrés, Juan Gracia, Lourdes Li, Maximo Siu Delmonte, Maurício Roberto Bomio Araújo, Vinícius Dantas Silva, Elson Longo da Motta, Fabiana Villela da |
dc.subject.por.fl_str_mv |
RE Photoluminescence DFT calculations White LEDs |
topic |
RE Photoluminescence DFT calculations White LEDs |
description |
Rare-earth (RE) element-based materials for optical applications have received increasing attention owing to the emission properties of RE ions, which render these materials suitable for use in color displays, lasers, and solid-state lighting. In the present work, ZrO2:RE (RE = Tm3+, Tb3+, and Eu3+) powders were obtained via complex polymerization, and characterized by means of X-ray diffraction (XRD), Raman spectroscopy, UV–visible absorption spectroscopy, and photoluminescence measurements. The XRD patterns and Raman spectra revealed the tetragonal phase of ZrO2 co-doped with up to 4 mol.% RE3+ and stabilization of the cubic phase, for up to 8 mol.% RE3+. In addition, the photoluminescence measurements revealed simultaneous emissions in the blue (477 nm), green (496.02 nm and 548.32 nm), and red-orange (597.16 nm and 617.54 nm) regions. These emissions result from the Tm3+, Tb 3+, and Eu3+ ions, respectively. Energy transfers, such as 1G4 levels (Tm3+) → 5D4 (Tb3+) and 5D4 levels (Tb3+) → 5D0 (Eu3+), occurred during the emission process. Calculations based on density functional theory (DFT) were performed, to complement the experimental data. The results revealed that structural order/disorder effects were generated in the cubic and tetragonal ZrO2 phases in the ZrO2:Eu3+ powders, and changes in the electronic structure were manifested as a decrease in the band gap values. The chromaticity coordinates of all the samples were determined from the PL spectrum. The coordinates, x = 0.34 and y = 0.34, of the ZrO2:8%RE sample corresponded to a point located in the white region of the CIE diagram and color correlated temperature (CCT) was found to be 5181 K. More importantly, the present results indicate that ZrO2:RE powders constitute promising photoluminescent materials for use in new lighting devices. |
publishDate |
2017 |
dc.date.issued.fl_str_mv |
2017-02-25 |
dc.date.accessioned.fl_str_mv |
2021-04-16T14:39:37Z |
dc.date.available.fl_str_mv |
2021-04-16T14:39:37Z |
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.citation.fl_str_mv |
LOVISA, L.X.; ANDRÉS, J.; GRACIA, L.; LI, M.s.; PASKOCIMAS, C.A.; BOMIO, M.R.D.; ARAUJO, V.D.; LONGO, E.; MOTTA, F.V.. Photoluminescent properties of ZrO2: tm3+, tb3+, eu3+ powders⠴a combined experimental and theoretical study. Journal Of Alloys And Compounds, [S.L.], v. 695, p. 3094-3103, fev. 2017. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0925838816338245?via%3Dihub. Acesso em: 11 dez. 2020. http://dx.doi.org/10.1016/j.jallcom.2016.11.341. |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufrn.br/handle/123456789/32242 |
dc.identifier.issn.none.fl_str_mv |
0925-8388 |
dc.identifier.doi.none.fl_str_mv |
10.1016/j.jallcom.2016.11.341 |
identifier_str_mv |
LOVISA, L.X.; ANDRÉS, J.; GRACIA, L.; LI, M.s.; PASKOCIMAS, C.A.; BOMIO, M.R.D.; ARAUJO, V.D.; LONGO, E.; MOTTA, F.V.. Photoluminescent properties of ZrO2: tm3+, tb3+, eu3+ powders⠴a combined experimental and theoretical study. Journal Of Alloys And Compounds, [S.L.], v. 695, p. 3094-3103, fev. 2017. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0925838816338245?via%3Dihub. Acesso em: 11 dez. 2020. http://dx.doi.org/10.1016/j.jallcom.2016.11.341. 0925-8388 10.1016/j.jallcom.2016.11.341 |
url |
https://repositorio.ufrn.br/handle/123456789/32242 |
dc.language.iso.fl_str_mv |
eng |
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eng |
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Attribution 3.0 Brazil http://creativecommons.org/licenses/by/3.0/br/ info:eu-repo/semantics/openAccess |
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Attribution 3.0 Brazil http://creativecommons.org/licenses/by/3.0/br/ |
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openAccess |
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Elsevier |
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Elsevier |
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