Now showing items 1-6 of 6
Characterization of Gd2O2S: Tb³+ phosphor powder and thin films
(University of the Free State, 2011-06)
Under Ultra violet (UV), cathode-ray and X-ray excitation, terbium activated rare earth oxysulphide (Gd2O2S:Tb3+) phosphors shows bright green luminescence. Due to its superior luminescent performance, Gd2O2S:Tb3+ phosphor ...
Luminescent properties of Y₃(Al;Ga)₅O₁₂: Tb thin films
(University of the Free State, 2015-08-08)
English: The main aim of this project was to use the technique of pulsed laser depo- sition (PLD) to fabricate thin lms from Yttrium Aluminium Gallium Oxide (Y3(Al; Ga)5O12) doped with Tb3+ ions and then to investigate ...
Synthesis and characterization of MgAl₂O₄ and (MgxZn₁-x)Al₂O₄) mixed spinel phospors
(University of the Free State, 2014-01)
Magnesium aluminate (MgAl2O4) has received special attention as a technologically important material because of its attractive properties, such as mechanical strength, chemical inertness, a wideband gap, relatively low ...
Structural and luminescence properties of re doped fluoride and silicate phosphors
(University of the Free State (Qwaqwa Campus), 2017-04)
This work covers several aspects of rare earth activated silicate and fluoride commercial phosphor powders and thin films. All the films were synthesized by pulsed laser deposition technique using Nd- YAG laser and ...
Luminescent properties of Y2SiO5:Ce thin films
(University of the Free State, 2010-05)
The luminescent properties of yttrium silicate doped with cerium (Y2SiO5:Ce) phosphor thin films were investigated. A detailed investigation (cathodoluminescence (CL), photoluminescence (PL) and Gaussian peak fits) was ...
Characterization of Y3(Al,Ga)5O12:Ce3+ phosphor thin films prepared by pulsed laser deposition
(University of the Free State, 2013-11)
The morphological and luminescent properties of Y3(Al,Ga)5O12:Ce3+ powder phosphor were investigated. Scanning Electron Microscopy (SEM) revealed the phosphor’s agglomerated particles with a size ranging from 0.4μm to ...