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Theses and Dissertations (Physics): Recent submissions
Now showing items 1-20 of 177
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(University of Pretoria, 2022)The South African Naturally Occurring Radioactive Material (NORM) regulatory framework provides guidance on most matters associated with radiation protection within the mining and minerals processing sphere, but definitive ...
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(University of Pretoria, 2023)Various transition metal dichalcogenides materials have been investigated from bulk to monolayer phases for different advanced technological applications. Tin disulfide monolayer offers advantages as an anode material for ...
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(University of Pretoria, 2023)The storage and management of nuclear waste is perhaps the most controversial aspect of nuclear power production, as there is no permanent solution to this problem that has existed for centuries. In the last decade, our ...
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(University of Pretoria, 2023)This Ph.D. work is based on the synthesis and characterization of activated carbon from cross-linked polymers and the enhancement of its electrochemical performance through heteroatoms and cobalt incorporation. These ...
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(University of Pretoria, 2022)The objective of this work was to prepare and study the electrical properties of gallium nitride and Al-doped gallium nitride thin films grown by electrodeposition on different substrates for use in optoelectronic ...
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(University of Pretoria, 2023)Density functional theory calculations were performed to enhance interaction of Li/Na atoms with a graphane monolayer for LIBs and NIBs. The energetic stability, electronic and electrochemical properties of Li/Na atoms on ...
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(University of Pretoria, 2022)The demand for biomedical implants is on the rise for the maintenance and improvement of human health. These biomedical implants reinstate the function of living tissue and/or organs in the human body. Accidents, sports ...
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(University of Pretoria, 2022-11)Roads found in informal settlements arise out of convenience are often not recorded or maintained by authorities. This may cause issues with service delivery, sustainable development and crisis mitigation, including ...
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(University of Pretoria, 2022)Perovskites of cesium lead halide (CsPbX3, X = Cl, Br, I) have received a lot of attention due to their relative stability in comparison to their organic-inorganic counterparts. This study synthesized a thin film of ...
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(University of Pretoria, 2022)Many astrophysical questions are addressed by large area surveys, where sensitivity limits the distance and luminosity of directly detected objects. One way to gain further effective sensitivity is to forego knowledge of ...
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(University of Pretoria, 2022)In this thesis, “Characterization and performance evaluation of electrodeposition synthesized cobalt-nickel layered double hydroxide and composites for high-efficiency hybrid capacitor applications”, an efficient binder-free ...
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(University of Pretoria, 2022)NGC 6240 is a prototypical merger system in the nearby universe hosting a dual active galactic nucleus. It is a well studied object and has been observed across the electromagnetic spectrum using most major ground- and ...
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(University of Pretoria, 2022)Diffuse radio sources are best studied at low radio frequencies (<~ 1 GHz) as they typically have steep radio spectra, resulting in higher flux densities at lower frequencies. However, this requires high surface brightness ...
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(University of Pretoria, 2022)Modern and future radio surveys performed with increasingly powerful instruments, such as the 64-antenna MeerKAT interfereometer and eventually the Square Kilometre Array (SKA), will catalogue upwards of hundreds of thousands ...
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(University of Pretoria, 2022)In this work, the processing parameters of preparing dip coated CuO films which includes the withdrawal rate, film thickness and annealing temperature were optimized for photoelectrochemical (PEC) water splitting. The CuO ...
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(University of Pretoria, 2022-03)In this study, we report on the synthesis and characterization of titanium dioxide thin film prepared via the spray pyrolysis technique. X-ray diffractograms confirmed a tetragonal crystal structure with an average crystallite ...
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(University of Pretoria, 2022-12)In this study, the influence of coating techniques and layering of hematite (α-Fe2O3) thin films were studied. Two colloidal-based coating techniques namely dip coating and thermal spray pyrolysis were used to synthesize ...
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(University of Pretoria, 2022-03-29)Messier 87 (M87) is a spectacular radio galaxy located in our cosmic backyard. Its proximity has allowed astronomers to study it in detail across the electromagnetic spectrum. M87 shows a complex structure in the radio ...
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(University of Pretoria, 2022-04)This work is divided into two parts, namely supercapacitor (SC) and microsupercapacitor (µ-SC). In general, the electrochemical properties of thermally reduced graphene oxide (TRGO) were investigated for both SC and µ-SC ...
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(University of Pretoria, 2022)Gold (Au) nanospheres, nanorods and nanoprisms were synthesized using the seed-mediated growth method. The structural, optical, and morphological properties of Au nanostructures were explored. Transmission electron microscope ...
Now showing items 1-20 of 177