α- and β-AgVO3 polymorphs as photoluminescent materials: An example of temperature-driven synthesis
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Scholar |
Otros documentos de la autoría: Oliveira, Regiane; Teixeira, Mayara Mondego; Costa, João Paulo C.; Penha, Maya; Francisco, Eric Mark; da Silva, Jussara Soares; Li, Maximo Siu; Longo, Elson; Gracia, Lourdes; Andres, Juan
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Mostrar el registro completo del ítemcomunitat-uji-handle:10234/9
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https://doi.org/10.1016/j.ceramint.2017.12.161 |
Metadatos
Título
α- and β-AgVO3 polymorphs as photoluminescent materials: An example of temperature-driven synthesisAutoría
Fecha de publicación
2018-04-15Editor
ElsevierISSN
0272-8842; 1873-3956Cita bibliográfica
OLIVEIRA, Regiane Cristina, et al. α-and β-AgVO3 polymorphs as photoluminescent materials: An example of temperature-driven synthesis. Ceramics International, 2018, vol. 44, no 6, p. 5939-5944.Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://www.sciencedirect.com/science/article/pii/S0272884217328705#!Versión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
Controlling the synthesis of a given polymorph of an inorganic material is a further step in the design of property and function. In this letter, we report for the first time a simple procedure to effectively control ... [+]
Controlling the synthesis of a given polymorph of an inorganic material is a further step in the design of property and function. In this letter, we report for the first time a simple procedure to effectively control the reversible transformation between the crystalline polymorphs α-AgVO3 and β-AgVO3. Photoluminescence emission (PL) performance is analyzed; at low temperatures (up to 35 °C) when α-AgVO3 is formed the PL emission is red, while at temperatures larger than 45 °C when β-AgVO3 is obtained the color of emission PL emission goes from green to blue. The findings highlight the ability of temperature to dramatically alter the nature of phase transformation at the atomic level. The phase transformation is driven by the short-range structural and electronic changes of [VO4] and [AgOx] (x = 5, 6, and 7) clusters (building blocks of both monoclinic structures), and hence is dependent on the temperature employed during synthesis. These outcomes clearly demonstrate that the AgVO3 crystals exhibited appropriate activity for application in visible lamps, displays, and other optical devices. [-]
Publicado en
Ceramics International, 2018, vol. 44, no 6Proyecto de investigación
CAPES: PNPD - 1268069. FAPESP: 2013/07296-2; 2013/26671-9. FAPESP: 2013/07296-2; 2013/26671-9. Generalitat Valenciana: Prometeo II/2014/022; ACOMP/2014/270; ACOMP/2015/1202. Ministerio de Economia y Competitividad (Spain): CTQ2015-65207-P. Programa de Cooperacion Cientifica con Iberoamerica (Brasil) of Ministerio de Educacion (Spanish Brazilian program): PHBP14-00020Derechos de acceso
Copyright © Elsevier B.V.
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