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Spray pyrolysis synthesis and characterization of Mg1-xSrxMoO4 heterostructure with white light emission

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Spray pyrolysis synthesis and characterization of Mg1-xSrxMoO4 heterostructure with white light emission

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dc.contributor.author Santiago, A. A. G. es_ES
dc.contributor.author Tranquilin, R. L. es_ES
dc.contributor.author Botella, P. es_ES
dc.contributor.author Manjón, Francisco-Javier es_ES
dc.contributor.author Errandonea, D. es_ES
dc.contributor.author Paskocimas, C. A. es_ES
dc.contributor.author Motta, F. V. es_ES
dc.contributor.author Bomio, M. R. D. es_ES
dc.date.accessioned 2021-02-24T04:31:51Z
dc.date.available 2021-02-24T04:31:51Z
dc.date.issued 2020-01-15 es_ES
dc.identifier.issn 0925-8388 es_ES
dc.identifier.uri http://hdl.handle.net/10251/162246
dc.description.abstract [EN] Molybdates are inorganic materials with great potential in white phosphors application, being an alternative to traditional lighting sources. In this study, we report the synthesis and characterization of Mg1-xSrxMoO4 (x = 0, 0.25, 0.50, 0.75, and 1) powders with white light-emitting properties. Using X-ray diffraction, the formation of the monoclinic beta-MgMoO4 phase was observed for x = 0 and the formation of the tetragonal scheelite phase of SrMoO4 was observed for x = 1. The formation of a heterostructure composed of both phases was found for compositions with x = 0.25, 0.50 and 0.75. Scanning and trasmission electron microscopy images showed that the Mg1-xSrxMoO4 particles exhibit a spherical morphology formed by several primary nanoparticles. Raman scattering spectroscopy enabled the accurate identification of the Raman modes for different compositions and their assignment to either the SrMoO4 or beta-MgMoO4 modes. The bandgap energies were determined to fluctuate between 4.25 eV and 4.44 eV, being influenced by the degree of structural disorder. The photoluminescence emission spectra of the nanoparticles showed neutral- and cool-white emission with high-quality white light (CRI > 80%). The samples synthesized with x <= 0.50 are potential materials for the application in LED lamps (6500 K) and pure white-light sources (5500 K). es_ES
dc.description.sponsorship The authors thank the following Brazilian and Spanish research financing institutions for financial support: A.A.G. Santiago acknowledges financial support from the National Council for Scientific and Technological Development -CNPq, the Graduate Program in Materials Science and Engineering (PPGCEM-UFRN) and the Coordination for the Improvement of Higher Education Personnel (CAPES) -Brazil (CAPES) -Finance Code 001. F.J.M. and D.E. acknowledge financial support from the Spanish Ministerio de Ciencia, Innovacion y Universidades, the Spanish Agencia Estatal de Investigacion (AEI), and the Fondo Europeo de Desarrollo Regional (FEDER) under Grants No. MAT2016-75586-C4-1/2-P and from the Generalitat Valenciana under Grant Prometeo/2018/123 - EFIMAT. es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation.ispartof Journal of Alloys and Compounds es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Ultrasonic spray pyrolysis es_ES
dc.subject Raman spectroscopy es_ES
dc.subject Photoluminescence es_ES
dc.subject Molybdate es_ES
dc.subject White emission es_ES
dc.subject.classification FISICA APLICADA es_ES
dc.title Spray pyrolysis synthesis and characterization of Mg1-xSrxMoO4 heterostructure with white light emission es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.jallcom.2019.152235 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/MINECO//MAT2016-75586-C4-1-P/ES/OXIDOS METALICOS BAJO CONDICIONES EXTREMAS: SINTESIS Y CARACTERIZACION DE MATERIALES EN VOLUMEN, NANOCRISTALES Y CAPAS DELGADAS CON APLICACIONES TECNOLOGICAS/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/GVA//PROMETEO%2F2018%2F123/ES/Materiales avanzados para el uso eficiente de la energia (EFIMAT)/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/CAPES//001/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/MINECO//MAT2016-75586-C4-2-P/ES/COMPUESTOS ABO3 Y A2X3 EN CONDICIONES EXTREMAS DE PRESION Y TEMPERATURA/ es_ES
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada es_ES
dc.description.bibliographicCitation Santiago, AAG.; Tranquilin, RL.; Botella, P.; Manjón, F.; Errandonea, D.; Paskocimas, CA.; Motta, FV.... (2020). Spray pyrolysis synthesis and characterization of Mg1-xSrxMoO4 heterostructure with white light emission. Journal of Alloys and Compounds. 813:1-13. https://doi.org/10.1016/j.jallcom.2019.152235 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1016/j.jallcom.2019.152235 es_ES
dc.description.upvformatpinicio 1 es_ES
dc.description.upvformatpfin 13 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 813 es_ES
dc.relation.pasarela S\403147 es_ES
dc.contributor.funder Generalitat Valenciana es_ES
dc.contributor.funder European Regional Development Fund es_ES
dc.contributor.funder Ministerio de Economía y Competitividad es_ES
dc.contributor.funder Universidade Federal do Rio Grande do Norte es_ES
dc.contributor.funder Ministerio de Ciencia, Innovación y Universidades es_ES
dc.contributor.funder Coordenaçao de Aperfeiçoamento de Pessoal de Nível Superior, Brasil es_ES
dc.contributor.funder Conselho Nacional de Desenvolvimento Científico e Tecnológico, Brasil es_ES
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