Fast and efficient microwave-assisted synthesis of CaTiO3 Abstract: The traditional methods to synthesize nanocrystalline materials are energy-intensive and time-consuming. This paper describes a fast and simple route to synthesize CaTiO3, which requires just 30 s of […]
Short-range structure and photoluminescent properties of the CaTiO3:Pr,La phosphor Abstract: Pr3+-doped CaTiO3 perovskite is a promising phosphor compound with the possibility of use in several technological applications. In this paper, we report the substitution of Ca2+ […]
Zn1-xMgxO nanoparticles prepared by the polymeric precursor method: Correlation between photoluminescence and local structure Abstract: ZnO is an n-type semiconductor having a wide band gap which has been studied as green phosphors because of its luminescence […]
Writers: Alexandre Mesquita, Flavia Regina Estrada, Valmor Roberto Mastelaro, José Antônio Eiras, Ducinei Garcia Keywords: EXAFS, Pb1-xCaxTiO3, Structural Phase Transition, XANES Abstract: In order to characterize the local structure of Pb1-xCaxTiO3 (PCT) samples, Ti K-edge XANES measurements […]
Writers: A. Mesquita, A. Michalowicz, V. R. Mastelaro Keywords: Dielectric Permittivity; Ferroeletrics; Lead Zirconate Titanate; PCZT; PSZT; PZT; XANES Abstract: This paper reports the influence of Sr- and Ca-substitution on the structural and ferroelectric properties of Pb1–x […]
Writers: Tatiana M. Mazzo, Ivo M. Pinatti, Leilane R. Macario, Waldir Avansi Junior, Mario L. Moreira, Ieda L. V. Rosa, Valmor R. Mastelaro, José A. Varela, Elson Longo Keywords: Structural evaluations; Optical evaluations; XANES spectroscopy Abstract: Pure Calcium […]
Writers: Barbara Fraygola; Alexandre Mesquita; Adelino A. Coelho; Ducinei Garcia; Valmor R. Mastelaro; and Jose A. Eiras Keywords: anelastic; multiferroics; PFN; PFW; XANES Abstract: Lead-based multiferroics perovskites with nominal compositions Pb(Fe1/2Nb1/2)O3 and Pb(Fe2/3W1/3)O3 were synthesized […]
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