Structure, morphology and photoluminescence emissions of ZnMoO4: RE 3+=Tb3+ -Tm3+ - x Eu3+ (x = 1, 1.5, 2, 2.5 and 3 mol%) particles obtained by the sonochemical method

Página do item simplificado Estatísticas
dc.contributor.authorLovisa, Laura Ximena
dc.contributor.authorOliveira, Marisa Carvalho de
dc.contributor.authorAndrés, Juan
dc.contributor.authorGracia, Lourdes
dc.contributor.authorLi, Maximo Siu
dc.contributor.authorSilva, Elson Longo da
dc.contributor.authorTranquilin, Ricardo Luis
dc.contributor.authorPaskocimas, Carlos Alberto
dc.contributor.authorDelmonte, Maurício Roberto Bomio
dc.contributor.authorMotta, Fabiana Villela da
dc.date.accessioned2021-11-04T18:00:18Z
dc.date.available2021-11-04T18:00:18Z
dc.date.issued2018-06-25
dc.description.resumoZnMoO4 and ZnMoO4: RE3+= 1% Tb3+, 1% Tm3+, x Eu3+ (x = 1, 1.5, 2, 2.5 and 3 mol%) particles were prepared by a sonochemical method. The influence of the dopant content on photoluminescent behavior was investigated. The X-ray diffraction results confirmed the formation of the α-ZnMoO4 phase with a triclinic crystalline structure. The influence of the chemical compositions on photoluminescence emissions has been studied and the results clearly show the specific emissions of Tb3+ and Eu3+, simultaneously, with a strong contribution of the matrix. Band gap values are in the range of 3.55 to 4.25 eV. From the values calculated for the CIE coordinates, it was observed that this material develops an emission tendency in the orange-red region. It has been demonstrated for the first time that the sample ZnMoO4: 1% Tb3+, 1% Tm3+, 2% molEu3+, presented higher photoluminescence intensity. At higher concentrations of RE3+, the quenching effect was observed. The morphology of samples are interpreted based on a comparative analysis of the calculated and experimental field emission scanning electron microscopy (FE-SEM) images. First-principle calculations at a density functional theory level were performed to obtain the values of surface energies and relative stability of the (120), (001), (011), (201), and (100) surfaces by employing the Wulff construction.A complete map of the available morphologies of ZnMoO4 and ZnMoO4:12.5%molEu3+ is obtained and a possible explanation for the transformation processes is provided in which the experimental and theoretical morphologies can match. The present study offers a fundamental knowledge that is expected to enable the fabrication of ZnMoO4-based phosphor materials with a controllable emission peak shift and intensitypt_BR
dc.identifier.citationLOVISA, L.X.; OLIVEIRA, M.C.; ANDRÉS, J.; GRACIA, L.; LI, M.s.; LONGO, E.; TRANQUILIN, R.L.; PASKOCIMAS, C.A.; BOMIO, M.R.D.; MOTTA, F.V.. Structure, morphology and photoluminescence emissions of ZnMoO4: re 3+=tb3+ - tm3+ - x eu3+ (x = 1, 1.5, 2, 2.5 and 3 mol%) particles obtained by the sonochemical method. Journal of Alloys and Compounds, [S.L.], v. 750, p. 55-70, jun. 2018. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0925838818312714?via%3Dihub. Acesso em: 19 mar. 2021. http://dx.doi.org/10.1016/j.jallcom.2018.03.394.pt_BR
dc.identifier.doi10.1016/j.jallcom.2018.03.394
dc.identifier.issn0925-8388
dc.identifier.urihttps://repositorio.ufrn.br/handle/123456789/44771
dc.languageenpt_BR
dc.publisherElsevierpt_BR
dc.rightsAttribution 3.0 Brazil*
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/br/*
dc.subjectZnMoO4: Tb3+pt_BR
dc.subjectSonochemical methodpt_BR
dc.subjectPhotoluminescencept_BR
dc.subject- Tm3+pt_BR
dc.subject- Eu3+pt_BR
dc.titleStructure, morphology and photoluminescence emissions of ZnMoO4: RE 3+=Tb3+ -Tm3+ - x Eu3+ (x = 1, 1.5, 2, 2.5 and 3 mol%) particles obtained by the sonochemical methodpt_BR
dc.typearticlept_BR

Arquivos

Pacote Original

Agora exibindo 1 - 1 de 1
Nenhuma Miniatura disponível
Nome:
StructureMorphologyEmissions_BOMIO_2018.pdf
Tamanho:
9.06 MB
Formato:
Adobe Portable Document Format
Nenhuma Miniatura disponível
Baixar

Licença do Pacote

Agora exibindo 1 - 1 de 1
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.45 KB
Formato:
Item-specific license agreed upon to submission
Nenhuma Miniatura disponível
Baixar

Coleções

CT - DEMAT - Artigos publicados em periódicos
Repositório Institucional - UFRN Campus Universitário Lagoa NovaCEP 59078-970 Caixa postal 1524 Natal/RN - BrasilUniversidade Federal do Rio Grande do Norte© Copyright 2025. Todos os direitos reservados.
Contato+55 (84) 3342-2260 - R232Setor de Repositórios Digitaisrepositorio@bczm.ufrn.br
DSpaceIBICT
OasisBR
LAReferencia
Customizado pela CAT - BCZM