Colen, Manaka Mmakgabo (2015) Synthesis and Characterization of Long Persistent Phosphors Using Combustion Method. Masters thesis, University of South Africa.
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Abstract
In this work, alkaline earth aluminate phosphors doped with rare-earth ions and manganese were synthesized using combustion method. Several characterization techniques were used to study the structural and luminescent properties of the as-synthesized phosphors, namely X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), X-ray energy Dispersive Spectroscopy (EDS), Ultraviolet-Visible (UV-Vis) Spectroscopy, Photoluminescence (PL), and Thermoluminescence (TL). The structural properties were studied by collecting the XRD patterns of the samples using an X'Pert PRO PANalytical diffractometer with CuKα at λ = 0.15405 nm. The particle morphologies of the as-synthesized powder phosphors were investigated using a JEOL JSM-7500F field-emission scanning electron microscope (FE-SEM). The optical properties of the phosphors were studied using Perkin-Elmer Lambda 750s UV-Vis spectrometer, Jobin Yvon/SPEX FluoroLog spectrofluorometer (Model FL-1040) and Riso TL/OSL reader (Model DA-20). The as-prepared SrAl2O4:Eu 2+
| Item Type: | Thesis (Masters) |
|---|---|
| Subjects: | Q Science > QC Physics |
| Divisions: | Africana |
| Depositing User: | Martin Lucas Mkoba |
| Date Deposited: | 19 Jan 2017 11:10 |
| Last Modified: | 19 Jan 2017 11:13 |
| URI: | http://thesisbank.jhia.ac.ke/id/eprint/1160 |
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