Now showing items 11-20 of 22
Morphology and Photoluminescence of HfO2 Obtained by Microwave-Hydrothermal
(Nanoscale Research Letters, 2009-11-01) [Artigo]
In this letter, we report on the obtention of hafnium oxide (HfO2) nanostructures by the microwave-hydrothermal method. These nanostructures were analyzed by X-ray diffraction (XRD), field-emission gum scanning electron ...
Synthesis, growth process and photoluminescence properties of SrWO4 powders
(Journal of Colloid and Interface Science, 2009-02-01) [Artigo]
SrWO4 powders were synthesized by the co-precipitation method and processed in a microwave-hydrothermal (MH) at 140 degrees C for different times. The obtained powders were analyzed by X-ray diffraction (XRD), micro-Raman ...
CaTiO3:Eu3+ obtained by microwave assisted hydrothermal method: A photoluminescent approach
(Optical Materials, 2010-07-01) [Artigo]
Europium(III) Concentration Effect on the Spectroscopic and Photoluminescent Properties of BaMoO4:Eu
(Journal of Fluorescence, 2009-05-01) [Artigo]
BaMoO4:Eu (BEMO) powders were synthesized by the polymeric precursor method (PPM), heat treated at 800 A degrees C for 2 h in a heating rate of 5 A degrees C/min and characterized by powder X-ray diffraction patterns (XRD), ...
A new processing method of CaZn2(OH)(6)center dot 2H(2)O powders: Photoluminescence and growth mechanism
(Solid State Sciences, 2009-12-01) [Artigo]
In this communication, we report on the formation of calcium hexahydroxodizincate dehydrate, CaZn2(OH)(6)center dot 2H(2)O (CZO) powders under microwave-hydrothermal (MH) conditions. These powders were analyzed by X-ray ...
Disorder-dependent photoluminescence in Ba0.8Ca0.2TiO3 at room temperature
(Journal of Luminescence, 2009-07-01) [Artigo]
The photoluminescence (PL) emission in structurally disordered Ba0.8Ca0.2TiO3 (BCT20) powders was observed at room temperature with laser excitation at lines 355 and 460 nm. The structural evolution perovskite-like titanate ...
Microstructure, dielectric properties and optical band gap control on the photoluminescence behavior of Ba[Zr0.25Ti0.75]O-3 thin films
(Journal of Sol-Gel Science and Technology, 2009-01-01) [Artigo]
Ba[Zr0.25Ti0.75]O-3 (BZT) thin films were synthesized by the complex polymerization method and heat treated at 400 A degrees C for different times and at 700 A degrees C for 2 h. These thin films were analyzed by X-ray ...
Structure and optical properties of [Ba1-xY2x/3](Zr0.25Ti0.75)O-3 powders
(Solid State Sciences, 2010-07-01) [Artigo]
[Ba1-xY2x/3](Zr0.25Ti0.75)O-3 powders with different yttrium concentrations (x = 0, 0.025 and 0.05) were prepared by solid state reaction. These powders were analyzed by X-ray diffraction (XRD). Fourier transform Raman ...
Indium hydroxide nanocubes and microcubes obtained by microwave-assisted hydrothermal method
(Journal of Alloys and Compounds, 2010-05-14) [Trabalho apresentado em evento]
Single crystalline indium hydroxide (In(OH)(3)) architectures were prepared by a rapid and efficient microwave-assisted hydrothermal (MAH) method using indium chloride as the precursor Nanostructures were obtained at a low ...
Structural, electronic and photoluminescence properties of Eu3+-doped CaYAlO4 obtained by using citric acid complexes as precursors
(Optical Materials, 2016-07-01) [Artigo]
The search for new materials that meet the current technological demands for photonic applications, make the Rare Earth ions embedded in inorganic oxides as excellent candidates for several technological devices. This work ...