Buscar
Mostrando ítems 1-10 de 348
Excitation mechanisms and effects of dopant concentration in Gd2O2S : Tb3+ phosphor
(Elsevier B.V., 2008-07-01)
Gadolinium oxysulfide powders doped with different Tb3+ concentrations were prepared from sulfur vaporization on rare earths' basic carbonate precursors. Single-phase Gd2O2S samples were obtained, with Tb3+ doping up to 9 ...
Auditory nerve frequency tuning measured with forward-masked compound action potentials
(2012)
Frequency selectivity is a fundamental cochlear property. Recent studies using otoacoustic emissions and psychophysical forward masking suggest that frequency selectivity is sharper in human than in common laboratory ...
Al3+ environments in nanostructured ZnAl2O4 and their effects on the luminescence properties
(Amer Scientific Publishers, 2008-11-01)
Single-phase zinc aluminate (ZnAl(2)O(4)) with the spinel structure was successfully obtained by the Pechini method at different calcining temperatures for 4 hours. The nanoparticles are highly crystalline with no impurities ...
Al3+ environments in nanostructured ZnAl2O4 and their effects on the luminescence properties
(Amer Scientific Publishers, 2008-11-01)
Single-phase zinc aluminate (ZnAl(2)O(4)) with the spinel structure was successfully obtained by the Pechini method at different calcining temperatures for 4 hours. The nanoparticles are highly crystalline with no impurities ...
White light and multicolor emission tuning in Ag nanocluster doped fluorophosphate glasses
(2017-01-01)
The emission properties of Ag nanoclusters (Ag NCs) dispersed in a transparent fluorophosphate glass host have been studied. The as-prepared glass shows that the Ag NCs emit a broad white emission band almost covering the ...
Excitation mechanisms and effects of dopant concentration in Gd2O2S : Tb3+ phosphor
(Elsevier B.V., 2008-07-01)
Gadolinium oxysulfide powders doped with different Tb3+ concentrations were prepared from sulfur vaporization on rare earths' basic carbonate precursors. Single-phase Gd2O2S samples were obtained, with Tb3+ doping up to 9 ...
Tuning multicolor emission in AgNCs/Tm3+/Mn2+-doped fluorophosphate glasses
(2020-05-01)
Herein we report the synthesis of highly-doped silver nanocluster in fluorophosphate glasses through the melting-quenching method in order to achieve sensitization with Tm3+ and Mn2+ ions. Blue and red emission belonging ...
Tuning The Emission Color Of A Single-layer Polymer Light-emitting Diode With A Solution-processed External Layer
(Elsevier Science SALausanne, 2016)