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First principles calculations on the origin of violet-blue and green light photoluminescence emission in SrZrO3 and SrTiO3 perovskites
(Theoretical Chemistry Accounts, 2009-11-01) [Artigo]
The photoluminescence (PL) emission from SrZrO3 (SZ) and SrTiO3 (ST) crystalline, quasi-crystalline, and quasi-amorphous samples, prepared by the polymeric precursor method, was examined by ab initio quantum mechanical ...
Room temperature photoluminescence of BCT prepared by Complex Polymerization Method
(Current Applied Physics, 2010-01-01) [Artigo]
It was used the Complex Polymerization Method to synthesize barium calcium titanate powders (BCT). Crystalline Ba(0.8)Ca(0.2)TiO(3) perovskite-type phase could be identified by X-ray diffraction and confirmed by Raman ...
Structural Refinement and Photoluminescence Properties of MnWO4 Nanorods Obtained by Microwave-Hydrothermal Synthesis
(Journal of Inorganic and Organometallic Polymers and Materials, 2012-01-01) [Artigo]
Manganese tungstate (MnWO4) nanorods were prepared at room temperature by the co-precipitation method and synthesized after processing in a microwave-hydrothermal (MH) system at 140 degrees C for 6-96 min. These nanorods ...
beta-ZnMoO4 microcrystals synthesized by the surfactant-assisted hydrothermal method: Growth process and photoluminescence properties
(Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2012-02-20) [Artigo]
In this communication, we investigate the effect of different surfactants: cetyltrimethylammonium bromide (CTAB), sodium dodecyl sulfate (SDS) and polyvinylpyrrolidone (PVP-K40) on the growth process of zinc molybdate ...
Effect of different surfactants on the shape, growth and photoluminescence behavior of MnWO4 crystals synthesized by the microwave-hydrothermal method
(Advanced Powder Technology, 2012-01-01) [Artigo]
In this communication, we report the effect of different surfactants [cetyltrimethylammonium bromide (CTAB), sodium dodecyl sulfate (SDS) and sodium bis(2-ethylhexyl)sulfosuccinate (AOT)] on the shape, growth and ...
Structural and optical properties of CaTiO3 perovskite-based materials obtained by microwave-assisted hydrothermal synthesis: An experimental and theoretical insight
(Acta Materialia, 2009-10-01) [Artigo]
CaTiO3 powders were synthesized using both a polymeric precursor method (CTref) and a microwave-assisted hydrothermal (CTHTMW) method in order to compare the chemical and physical properties of the perovskite-based material ...
Synthesis of (Ca,Nd)TiO3 powders by complex polymerization, Rietveld refinement and optical properties
(Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, 2009-12-01) [Artigo]
Neodymium calcium titanate, (Ca0.99Nd0.01)TiO3 powders were synthesized by the complex polymerization method and heat treated at different temperatures for 2 h under air atmosphere. The structural evolution of these powders ...
Titanate nanotubes produced from microwave-assisted hydrothermal synthesis: Photocatalytic and structural properties
(Ceramics International, 2014-11-01) [Artigo]
Titanate nanotubes were successfully synthesized using the microwave-assisted hydrothermal method from commercial TiO2-anatase powder. Several samples were obtained at varying temperatures and time. Powder samples containing ...
Electronic structure and optical properties of BaMoO4 powders
(Current Applied Physics, 2010-03-01) [Artigo]
Barium molybdate (BaMoO4) powders were synthesized by the co-precipitation method and processed in microwave-hydrothermal at 140 degrees C for different times. These powders were characterized by X-ray diffraction (XRD), ...
Structural evolution of Eu-doped hydroxyapatite nanorods monitored by photoluminescence emission
(Journal of Alloys and Compounds, 2012-08-05) [Artigo]
This paper reports the synthesis of Eu-doped hydroxyapatite (HA:Eu) resulting in particles with nanorod diameters from 9 to 26 nm using the microwave hydrothermal method (HTMW). Eu3+ ions were used as a marker in the HA ...