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Now showing items 11-20 of 60
An hi study of the nearby dwarf galaxy ic 4710
(University of Western Cape, 2021)
This work aims to study the dark matter content of the nearby (7.38 Mpc) dwarf
galaxy IC 4710 using the HI line observations from the Australia Telescope
Compact Array (ATCA). We produce the rst interferometric maps of ...
Hybrid lead halide perovskite thin films and solar cells by chemical vapour deposition
(University of the Western Cape, 2021)
The organic-inorganic hybrid perovskites such as methyl ammonium lead iodide (MAPbI3) or mixed halide MAPbI3-xClx (x is usually very small) have emerged as an interesting class of semiconductor materials for their application ...
Optimization of lead halide perovskite thin films by chemical vapour deposition
(University of Western Cape, 2021)
Perovskite solar cells have gained tremendous attention within the past
decade, due to its rapid improvement in power conversion e ciency (PCE),
with the current record cell at 25%. The aim of this study is to create ...
Nitrogen and argon treatment of titanium dioxide nanowire arrays
(University of the Western Cape, 2021)
TiO2 nanoparticle films are important electron transport layers (ETLs) in photovoltaics such as
dye-sensitised, perovskite and polymer hetero-junction solar cells. These films, however, have
significant electron trap-sites ...
Photo-physical properties of lead-tin binary Perovskite thin films
(University of Western Cape, 2021)
Organic-inorganic lead-based perovskite has exhibited great performance in the past few years.
However, the lead (Pb) embedded in those compounds is a significant drawback to further
progress, due to its environmental ...
Silicon nanowires by metal-assisted chemical etching and its incorporation into hybrid solar cells
(University of Western Cape, 2021)
The rapid increase in global energy demand in recent decades coupled with the adverse environmental impact of conventional fuels has led to a high demand for alternative energy sources that are sustainable and efficient. ...
Gas sensing properties of Ceo2 nanostructures
(University of the Western Cape, 2020)
The industrial safety requirements and environmental pollution have created a high demand to develop gas sensors to monitor combustible and toxic gases. As per specifications of World Health Organization (WHO) and Occupational ...
Testing Gravity with MeerKAT and the SKA
(University of the Western Cape, 2020)
The new 64-dish radio telescope array MeerKAT will be absorbed into the international
Square Kilometre Array (SKA) in late 2020s. These two telescope arrays will
produce three-dimensional maps of the integrated intensity ...
Variability and interannual trends in the climatology of radon-222 at two Southern Hemisphere coastal baseline sites
(University of the Western Cape, 2021)
This thesis characterises and discusses two continuous coastal Southern Hemispheric (SH) atmospheric radon (222Rn) signals. Large-scale atmospheric circulation patterns are important components of the climate system ...
Neutral hydrogen intensity mapping on small scales using MeerKAT
(University of the Western Cape, 2021)
In the post-reionisation universe, intensity mapping (IM) with the 21 cm line of neutral hydrogen (HI) provides a potential means of probing the large-scale structure of the universe. With such a probe, a wide variety of ...