Now showing items 21-30 of 42
Room-temperature photoluminescence in amorphous SrTiO3-The influence of acceptor-type dopants
(Applied Physics A: Materials Science and Processing, 2002-11-01) [Artigo]
Room-temperature photoluminescence (PL) was observed in undoped and 2 mol% Cr-, Al- and Y-doped amorphous SrTiO3 thin films. Doping increased the PL, and in the case of Cr significantly reduced the associated PL wavelength. ...
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), ...
Photoluminescence properties and synthesis of a PZT mesostructure obtained by the microwave-assisted hydrothermal method
(Journal of Alloys and Compounds, 2012-01-25) [Artigo]
Micro-cube-shaped lead zirconate titanate was synthesized using the microwave-assisted hydrothermal method. Photoluminescence and field emission scanning electron microscopy were used for monitoring the formation of ...
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 ...
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 ...