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Structural and physical properties of ReN i03 (Re=Sm, N d) nanostructured films prepared by Pulsed Laser Deposition
(University of the Western Cape, 2010)
Very few systems allow the study of the relationship between structural changes and physical properties in such a clear way as rare earth nickelate ReNi03 perovskites (Re (rare earth) = Pr, Nd, Sm and Gd). Synthesized for ...
Structural and gas sensing properties of TiO₂-based (Sn, Mg) nano-structures induced by mechanical milling and annealing
(University of the Western Cape, 2015)
Titanium oxynitride has attracted research interest for the fact that it is a bioactive
non-toxic material. It is suitable for surface coating of biomaterials and in other
applications such as anti-reflective coatings, ...
Probing the expansion history of the universe using upernovae and Baryon Acoustic Oscillations
(University of the Western Cape, 2016)
The standard model of cosmology (the ɅCDM model) has been very successful and is compatible with all observational data up to now. However, it remains an important task to develop and apply null tests of this model. These ...
Modelling the growth of large-scale structure with interacting fluids
(University of the Western Cape, 2015)
Prevailing astronomical and astrophysical observations suggest that we live in a spatially flat cold dark matter (CDM) universe - currently going through a period of accelerated expansion possibly driven by “dark energy” ...
Using semantic profiling to characterize pedagogical practices and student learning : a case study in two introductory physics courses
(University of the Western Cape, 2016)
Framed by the South African imperative of widening epistemological access to undergraduate science studies, this research takes the form of a case study to investigate the educational affordances of an extended introductory ...
Hot-wire chemical vapour deposition of nanocrystalline silicon and silicon nitride : growth mechanisms and filament stability
(University of the Western Cape, 2012)
Nanocrystalline silicon (nc-Si:H) is an interesting type of silicon with superior
electrical properties that are more stable compared to amorphous silicon (a-Si:H).
Silicon nitride (SiNₓ) thin films are currently the ...
Disentangling star formation and AGN activity in the GAMA (G23) region
(University of the Western Cape, 2021)
Observations of galaxies at di↵erent wavelengths have shaped our understanding of their
formation and evolution through time. The commonly derived parameters, such as stellar
mass and star formation rate (SFR), rely on ...
Far-infrared-radio relations in clusters and groups at intermediate redshift
(University of the Western Cape, 2014)
In this thesis, we present a multi-wavelength analysis of star-forming galaxies to shed new light on the evolution of the far-IR-radio relations in intermediate redshift (0.3 < z < 0.6) galaxy clusters and galaxy groups. ...
Nonlinear low frequency wave phenomena in space plasmas
(University of the Western Cape, 2013)
In this thesis, using multispecies fluid plasma models, nonlinear electrostatic solitary wave fluctuations will be investigated in magnetized plasmas. The different models used for the investigation will be guided by the ...
TiO₂ nanotube based dye-sensitised solar cells
(University of the Western Cape, 2012)
The first report of a functioning photo-electrochemical solar cell in 1991 attracted a lot of interest from scientists and industrial groups. From an industrial point of view these so-called dye-sensitised solar cells ...