Browsing Philosophiae Doctor - PhD (Physics) by Author "Dept. of Physics"
Now showing items 1-9 of 9
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Clustering studies of radio-selected galaxies
Passmoor, Sean Stuart (University of the Western Cape, 2011)We investigate the clustering of HI-selected galaxies in the ALFALFA survey and compare results with those obtained for HIPASS. Measurements of the angular correlation function and the inferred 3D-clustering are compared ... -
Fabrication and characterization of a solar cell using an aluminium p-doped layer in the hot-wire chemical vapour deposition process
Kotsedi, Lebogang (University of the Western Cape, 2010)When the amorphous silicon (a-Si) dangling bonds are bonded to hydrogen the concentration of the dangling bond is decreased. The resulting film is called hydrogenated amorphous silicon (a-Si:H). The reduction in the dangling ... -
Measurements and applications of radon in South African aquifer and river waters
Abdalla, Siddig Abdalla Talha (University of the Western Cape, 2009)In the natural decay series of 238U an inert radioactive gas, 222Rn (radon) is formed in the decay of 226Ra. Because radon is relatively soluble in water, it migrates from places of its generation in rocks and soils to ... -
Optical modeling of amorphous and metal induced crystallized silicon with an effective medium approximation
Muller, Theophillus Frederic George (University of the Western Cape, 2009)In this thesis we report on the metal-mediated-thermally induced changes of the structural and optical properties of hydrogenated amorphous silicon deposited by hot-wire CVD, where aluminium and nickel were used to induce ... -
Radiometric characterisation of vineyard soils, Western Cape, South Africa
Mlwilo, Nolasco Anton (University of the Western Cape, 2010)This study is aimed at investigating the feasibility of using the radiometric technique as an alternative to traditional methods for determining soil physico-chemical parameters which are important for terroir characterization. ... -
Structure property relationship and thermal stability of organic photovoltaic cells
Motaung, David Edmond (University of the Western Cape, 2010)In this thesis, regioregularpoly( 3-hexylthiophene) (rr-P3HT) polymer was used as a light absorption and electron donating material, while the C60 fullerene and its derivative [6,6]-phenyl C61-butyric acid methyl ester ... -
A study of hydrogenated nanocrystalline silicon thin films deposited by hot-wire chemical vapour deposition (HWCVD)
Halindintwali, Sylvain (University of the Western Cape, 2005)In this thesis, intrinsic hydrogenated nanocrystalline silicon thin films for solar cells application have been deposited by means of the hot – wire chemical vapour deposition (HWCVD) technique and have been characterised ... -
Studying chirality in a ~ 100, 130 and 190 mass regions
Shirinda, Obed (University of the Western Cape, 2011)Chirality is a nuclear symmetry which is suggested to occur in nuclei when the total angular momentum of the system has an aplanar orientation [Fra97, Fra01]. It can occur for nuclei with triaxial shape, which have valence ... -
Towards stimuli-responsive functional nanocomposites: smart tunable plasmonic nanostructures Au-VO2
Kana, Jean Bosco Kana (University of the Western Cape, 2010)The fascinating optical properties of metallic nanostructures, dominated by collective oscillations of free electrons known as plasmons, open new opportunities for the development of devices fabrication based on noble metal ...