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Luminescence from lanthanide ions and the effect of co-doping in silica and other hosts
(University of the Free State, 2012-07)
Amorphous silica powders doped with lanthanide ions were synthesised by the sol-gel method and their cathodoluminescence (CL) and photoluminescence (PL) emissions were compared. Interesting differences depending on the ...
Synthesis and characterization of down−conversion nanophosphors
(University of the Free State, 2014-10)
Luminescent zinc aluminate (ZnAl2O4) nanoparticles, crystalline–low quartz and amorphous silica powders were incorporated with Ce3+ and Tb3+ ions. These powders were successfully synthesized by the solution combustion and ...
Luminescence properties of Y2O3:Bi3+ as powder and thin film phosphor for solar cell application
(University of the Free State, 2015-07)
The luminescent properties of the bismuth doped yttrium oxide (Y2-xO3:Bix) phosphor material was investigated as a powder and as thin films for possible application as a down-conversion material for solar cells. The goal ...