• Neutral hydrogen lensing simulations in the hubble frontier fields 

  Blecher, Tariq; Deane, Roger; Obreschkow, Danail; Heywood, Ian (Oxford University Press, 2024-07)

  Cold gas evolution ties the formation of dark matter haloes to the star formation history of the universe. A primary component of cold gas, neutral atomic hydrogen (HI), can be traced by its 21-cm emission line. However, ...
• Microwave-assisted hydrothermal synthesis and energy storage application of nickel-aluminum layered double hydroxide-graphene foam nanocomposites 

  Taghizadeh, Fatemeh (University of Pretoria, 2015-10)

  The graphene foam (GF) was synthesized by chemical vapor deposition (CVD) and different mass of GF were added to the LDH. The morphological, structural and compositional properties of LDH and LDH/GF composites were ...
• Synthesis and characterization of transparent conducting oxides for Stark e ect applications in single molecule spectroscopy 

  Cronje, Abraham Johannes (University of Pretoria, 2019-09)

  The desire to study the characteristics of transparent conducting oxides (TCOs) for Stark application in single molecule spectroscopy (SMS) stemmed from our interest in the dark states of light harvesting complex II ...
• Single molecule spectroscopy on photosynthetic light-harvesting complexes 

  Kyeyune, Farooq (University of Pretoria, 2020-02)

  Single molecule spectroscopy (SMS) is a powerful approach to study subtle, fundamental properties of biological systems generally obscured by the ensemble average. SMS allows for a detailed understanding of the molecular ...
• The study of transparent hematite films using ultrafast and Raman spectroscopies 

  Congolo, Sipho (University of Pretoria, 2019-11)

  Hematite (Fe2O3) is a promising photoanode material that is being studied immensely for its application in solar water splitting to produce hydrogen and oxygen as fuels. It has attractive properties such as a narrow bandgap ...
• The effect of palladium deposition on electrically active defects in irradiated silicon 

  Barnard, Abraham Willem (University of Pretoria, 2023-12)

  DLTS was used to study the effect of resistive physical vapour deposition of Pd Schottky contacts on the defects observed in an n-type Si substrate that was irradiated before deposition (“pre-irradiated”) and compared to ...
• Probing the Association of Galaxy Clusters with Bent-Tailed Radio Sources Using the MeerKAT Galaxy Cluster Legacy Survey 

  Mabote, Toivo Samuel (University of Pretoria, 2024-03)

  A bent-tailed radio galaxy (BT) is an active radio-loud galaxy in which its double jet presents a bend in the same direction, possibly as a result of interaction with the intracluster medium (ICM). Our dataset was extracted ...
• Migration and aggregation of ruthenium implanted in glassy carbon 

  Osman Jafer, Tasabeeh Alabid (University of Pretoria, 2023-12-15)

  Glassy carbon is a continuous, isotropic and non-graphitizing carbon that combines the properties of glass and ceramic with those of graphite. It has excellent properties such as high tensile strength, high hardness, good ...
• Studying single plant light-harvesting complexes in near-native environments 

  van Heerden, Bertus (University of Pretoria, 2023-12-14)

  Photosynthesis in plants begins with light absorption by light-harvesting complexes, the main one being light-harvesting complex II (LHCII). This protein is a key component of a critical photoprotective process called ...
• Application of the Jost-matrix theory to the lambda-nuclear and multi-lambda systems 

  Gopane, Ishmael Mmusi (University of Pretoria, 2024-02-28)

  This study involves the investigation into the hypernuclear and multi-lambda systems using the Jost-function method, as well as the recovery of the two-body potential from the two and three-body systems using the ...
• Effects of irradiation-induced defects in germanium 

  Thaba, Cambel Rashia (University of Pretoria, 2023)

  In this study, we investigated the electrical characteristics of defects in germanium produced by alpha particle radiation using conventional deep level transient spectroscopy (DLTS) and Laplace deep-level transient ...
• Laplace deep-level transient spectroscopy studies of the divacancy in alpha-particle irradiated silicon 

  Weideman, H.J.S. (University of Pretoria, 2024-02-15)

  Defects in semiconductors are usually detrimental to the device operation. Particularly in space, the high levels of radiation induce defects that damage electronics in satellites and space craft. However, in some devices ...
• Fluorescence correlation spectroscopy of the main plant light-harvresting complex 

  Conradie, Francois (University of Pretoria, 2023-12-07)

  Light-harvesting complex II, LHCII, is vital for the light-dependent reaction of photosynthesis in higher plants. It acts as the starting point for photosynthesis in Photosystem II (PS II) by increasing the absorption of ...
• Computational studies of doped tin disulphide monolayer for photoelectrochemical water splitting 

  Gqiba, Onke Lwazi (University of Pretoria, 2023-05-25)

  In this ab initio study, density functional theory, including a Hubbard U correction term (DFT+U), calculations were performed to investigate the photoelectrochemical (PEC) water splitting possibility of SnS2 monolayer. ...
• Synthesis and characterization of tin dioxide coated gold nanocomposites for applications in thermal heat conduction 

  Makgale, Tshepho Trevor (University of Pretoria, 2023-11-16)

  In this work, we synthesized three nanofluids based on tin dioxide-coated gold nanocomposites (Au@SnO2) using a two-step method. First, we synthesized gold (Au) nanomaterials, then encapsulated them with tin dioxide ...
• Quantum wasserstein distance of order 1 between channels 

  Mapaya, Mathumo (University of Pretoria, 2023-10-26)

  We analyse a formulation of the quantum Wasserstein distance of order $1$ and set up a general theory leading to a Wasserstein distance of order $1$ between the unital maps from one specific algebra to another specified ...
• Statistical approaches to the selection of strong gravitationally lensed spectral line sources in the Square Kilometre Array era 

  Button, Charissa Bronwyn (University of Pretoria, 2023)

  Neutral atomic hydrogen (HI) and hydroxyl (OH) are important gas components within the context of galaxy evolution. HI is a key transitory phase in the baryon cycle and, hence, has a crucial role in star formation. ...
• Development of a waste management process for naturally occurring radioactive material in the South African mining industry 

  Van der Westhuizen, Abraham Jozua (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 ...
• First-principles study of the enhancement of electrochemical performance of a SnS2 monolayer for lithium/sodium-ion batteries via vacancy defects 

  Bekeur, Craig Arthur (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 ...
• The effect of implantation and heat treatment on the structural evolution and migration behaviour of Selenium in glassy carbon 

  Adeojo, Samuel Adedigba (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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