Effects of microwave-assisted hydrothermal treatment and of use of capping reagent on the photophysical properties of SrMoO4 phosphors

Effects of microwave-assisted hydrothermal treatment and of use of capping reagent on the photophysical properties of SrMoO4 phosphors

Author Paradelas, Sidney M. V. Autor UNIFESP Google Scholar
Goncalves, Rosana F. Autor UNIFESP Google Scholar
Motta, Fabiana V. Google Scholar
Lima, Renata C. Google Scholar
Li, Maximo S. Google Scholar
Longo, Elson Google Scholar
Marques, Ana Paula de A. Autor UNIFESP Google Scholar
Abstract Strontium molybdate particles (SrMoO4) with uniform shapes have applications in various fields such as phosphors, optical fibers, scintillators, magnets, sensors, and catalysts. SrMoO4 were prepared by Microwave Assisted Hydrothermal (MAH) method with variations in applied experimental parameters. The effect of the applied synthesis methodology and experimental parameters on the morphology, particle size, sample uniformity and optical properties of the SrMoO4 were studied. In this study, was observed that the microwave radiation favors an organization of material and that this organization can be changed with a capping agent, which provokes alterations in morphology, a disorder-order degree of material and variations of band gap energy. This study indicates that surface defect states favor an alteration in properties of the PL emission. The control of a surface state, the particle size and morphology can be a form to modify the property in accordance with optics characteristics the desired one.
Keywords Optical properties
Microwave processing
Chemical syntheses
Microstructure-final
Transition metal oxides
xmlui.dri2xhtml.METS-1.0.item-coverage Amsterdam
Language English
Sponsor Sao Paulo Research Foundation (FAPESP)
Brazilian agency CNPq
Brazilian agency FAPESP-CEPID
Brazilian agency CAPES
Grant number FAPESP: 2013/07437-5
FAPESP: 2016/20568-5
Date 2017
Published in Journal Of Luminescence. Amsterdam, v. 192, p. 818-826, 2017.
ISSN 0022-2313 (Sherpa/Romeo, impact factor)
Publisher Elsevier Science Bv
Extent 818-826
Origin http://dx.doi.org/10.1016/j.jlumin.2017.08.016
Access rights Closed access
Type Article
Web of Science ID WOS:000413037400119
URI https://repositorio.unifesp.br/handle/11600/58152

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