F
F. S. De Vicente
Researcher at Sao Paulo State University
Publications - 34
Citations - 892
F. S. De Vicente is an academic researcher from Sao Paulo State University. The author has contributed to research in topics: Photoluminescence & Absorption spectroscopy. The author has an hindex of 13, co-authored 31 publications receiving 793 citations. Previous affiliations of F. S. De Vicente include Centre national de la recherche scientifique & University of São Paulo.
Papers
More filters
Journal ArticleDOI
Structural conditions that leads to photoluminescence emission in SrTiO3: An experimental and theoretical approach
Valeria M. Longo,A. T. de Figueiredo,S.R. de Lazaro,Maria Fernanda do Carmo Gurgel,M. G. S. Costa,Carlos O. Paiva-Santos,José Arana Varela,Elson Longo,Valmor Roberto Mastelaro,F. S. De Vicente,Antônio Carlos Hernandes,Roberto Weider de Assis Franco +11 more
TL;DR: In this article, electron paramagnetic resonance spectroscopy was used to confirm the presence of photoluminescence in disordered powders, in terms of band diagram, density of states, and electronic charges.
Journal ArticleDOI
Highly intense violet-blue light emission at room temperature in structurally disordered SrZrO3 powders
Valeria M. Longo,Laécio S. Cavalcante,A. T. de Figueiredo,L. P. S. Santos,Elson Longo,José Arana Varela,Julio R. Sambrano,Carlos A. Paskocimas,F. S. De Vicente,Antônio Carlos Hernandes +9 more
TL;DR: In this paper, the role of structural order-disorder that favors the self-trapping of electrons and charge transference was discussed, as well as a model to elucidate the mechanism that triggers photoluminescence.
Journal ArticleDOI
Mechanisms behind blue, green, and red photoluminescence emissions in CaWO4 and CaMoO4 powders
A. B. Campos,Alexandre Zirpoli Simões,Elson Longo,José Arana Varela,Valeria M. Longo,A. T. de Figueiredo,F. S. De Vicente,Antônio Carlos Hernandes +7 more
TL;DR: In this paper, a combined experimental and theoretical study was conducted to analyze the photoluminescence properties of ordered and disordered CaWO4 and CaMoO4 powders.
Journal ArticleDOI
Microstructure, dielectric properties and optical band gap control on the photoluminescence behavior of Ba[Zr0.25Ti0.75]O3 thin films
Laécio S. Cavalcante,Júlio C. Sczancoski,F. S. De Vicente,M. T. Frabbro,M. Siu Li,José Arana Varela,Elson Longo +6 more
TL;DR: In this article, BZT thin films were analyzed by X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, field emission gun-scanning electron microscopy (FEG-SEM) and atomic force microscopy.
Journal ArticleDOI
Intense blue and green photoluminescence emissions at room temperature in barium zirconate powders
Laécio S. Cavalcante,Laécio S. Cavalcante,Júlio C. Sczancoski,J. W. M. Espinosa,J. W. M. Espinosa,Valmor Roberto Mastelaro,Alain Michalowicz,P. S. Pizani,F. S. De Vicente,Máximo Siu Li,José Arana Varela,Elson Longo +11 more
TL;DR: In this paper, X-ray diffraction and near edge spectroscopy (XANES) were used to detect blue and green photoluminescence (PL) emissions in barium zirconate (ZrO3) powders.