Browsing Physics by Title

Browsing Physics by Title

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  • Scanning electron microscopy of the surfaces of ion implanted SiC 
    Malherbe, Johan B.; Van der Berg, Nic (Nicolaas George); Kuhudzai, Remeredzai Joseph; Hlatshwayo, Thulani Thokozani; Thabethe, Thabsile Theodora; Odutemowo, Opeyemi Shakirah; Theron, C.C. (Chris); Friedland, Erich Karl Helmuth; Botha, A.J.; Wendler, E. (Elsevier, 2015-07)
    This paper gives a brief review of radiation damage caused by particle (ions and neutrons) bombardment in SiC at different temperatures, and its annealing, with an expanded discussion on the effects occurring on the ...
  • Schooling Africa : computational materials science education and research 
    Chetty, Nithaya; Martin, M.N. (IOP Publishing Limited, 2020)
    The African School of Electronic Structure Methods and Applications (ASESMA) [1 – 7] is a series of workshops held every two years in different sub-Saharan countries, designed to foster a collaborative network for research ...
  • Schottky barrier diode fabrication on n-GaN for altraviolet detection 
    Diale, M. (Mmantsae Moche) (University of Pretoria, 2010-05-26)
    There are many potential areas for the utilization of GaN-based nitride materials, including ultraviolet photodetectors. Ultraviolet photodetectors are used in the military for missile plume detection and space communications. ...
  • Searching for obscured AGN in z ∼ 2 submillimetre galaxies 
    Chen, H.; Garrett, M.A.; Chi, S.; Thomson, A.P.; Barthel, P.D.; Alexander, D.M.; Muxlow, T.W.B.; Beswick, R.J.; Radcliffe, Jack Frederick; Wrigley, N.H.; Guidetti, D.; Bondi, M.; Prandoni, I.; Smail, I.; McHardy, I.; Argo, M.K. (EDP Sciences, 2020-06)
    AIMS: Submillimetre-selected galaxies (SMGs) at high redshift (z ∼ 2) are potential host galaxies of active galactic nuclei (AGN). If the local Universe is a good guide, ∼ 50% of the obscured AGN amongst the SMG population ...
  • Second-Order Phase Transition in Magnetic and non-Magnetic ZnO 
    Niyongabo, Prime (University of Pretoria, 2014)
  • SEM analysis of ion implanted SiC 
    Malherbe, Johan B.; Van der Berg, Nic (Nicolaas George); Botha, A.J.; Friedland, Erich Karl Helmuth; Hlatshwayo, Thulani Thokozani; Kuhudzai, Remeredzai Joseph; Wendler, E.; Wesch, W.; Chakraborty, P.; Da Silveira, E.F. (Elsevier, 2013-11)
    SiC is a material used in two future energy production technologies, firstly as a photovoltaic layer to harness the UV spectrum in high efficient power solar cells, and secondly as a diffusion barrier material for radioactive ...
  • Sequential physical vapor deposited methylammonium lead tri-iodide perovskites on FTO and ITO modified zinc oxide nanorods for perovskite solar cells 
    Mayimele, Meeheketo Advice; Fru, Juvet Nche; Nyarige, Justine Sageka; Diale, M. (Mmantsae Moche) (Elsevier, 2022-01)
    Please read abstract in the article.
  • The 'shook up' galaxy NGC 3079 : the complex interplay between H I, activity and environment 
    Shafi, N.; Oosterloo, T.A.; Morganti, R.; Booth, Roy S.; Colafrancesco, S. (Oxford University Press, 2015-09-14)
    We present deep neutral hydrogen (H i) observations of the starburst/Seyfert galaxy NGC 3079 and its environment, obtained with the Westerbork Synthesis Radio Telescope. Our observations reveal previously unknown components, ...
  • Silver nanoparticles decorated on a three-dimensional graphene scaffold for electrochemical applications 
    Bello, Abdulhakeem; Fabiane, Mopeli; Dodoo-Arhin, David; Ozoemena, Kenneth I.; Manyala, Ncholu I. (Elsevier, 2014-01)
    Silver metal nanoparticles were decorated by electron beam evaporation on graphene foam (GF) grown by chemical vapour deposition. X-ray diffraction, Raman spectroscopy, scanning and transmission electron microscopy, and ...
  • Simonkolleite nano-platelets : synthesis and temperature effect on hydrogen gas sensing properties 
    Sithole, J.; Ngom, Balla D.; Khamlich, Saleh; Manikanadan, E.; Manyala, Ncholu I.; Saboungi, M.L.; Knoessen, D.; Nemutudi, R.; Maaza, Malik (Elsevier, 2012-08)
    Please read abstract in article.
  • Simonkolleite-graphene foam composites and their superior electrochemical performance 
    Momodu, Damilola Y.; Barzegar, Farshad; Bello, Abdulhakeem; Dangbegnon, Julien K.; Masikhwa, T.M. (Tshifhiwa); Madito, M.J. (Moshawe); Manyala, Ncholu I. (Elsevier, 2015-01)
    Simonkolleite-graphene foam (SimonK/GF) composite has been synthesized by a facile solvothermal and environmentally friendly technique with excellent electrochemical properties. The obtained product was initially analyzed ...
  • Simulation of self-sustained relaxation of a two-dimensional metastable medium by means of a traveling wave 
    Bokov, P.M.; Selyshchev, Pavel (Elsevier, 2019)
    The traveling wave mode of self-sustained relaxation of a metastable medium, such as combustion and annealing of radiation-induced defects in solids, is studied. The mechanism of self-sustained relaxation and propagation ...
  • Single and combined neurotoxic, cytotoxic and genotoxic effects of 5GHz MIMO waves and computed tomography irradiation in male Wistar rats 
    Obajuluwa, Adejoke Olukayode; Lech, James C.; Amina, Danlami; Onwuka, Chidiogo Chukwunweike; Bolarinwa, Rahman Ayodele; Obajuluwa, Tiwalola Madoc; Fafure, Adedamola Adediran; Kruger, T.P.J. (Tjaart); Afolabi, Olakunke Bamikole; Anish, Abel; Emoruwa, Olusegun; Baker, Malcolm (Taylor and Francis, 2023)
    A significant public concern is how technologies that emit electromagnetic waves interact and affect the biota because they are linked to the dysregulation of genes involved in neurotransmission, oxidative stress, and ...
  • Single solid source precursor route to the synthesis of MOCVD Cu-Cd-S thin films 
    Olofinjana, B.; Adebisi, A.C.; Efe, F.O.; Fasakin, Oladepo; Oyedotun, Kabir Oyeniran; Eleruja, M.A.; Ajayi, E.O.B.; Manyala, Ncholu I. (IOP Publishing, 2019-09)
    Bis-(morpholinodithiato-s,s')-Cu-Cd was synthesized from appropriate reagents as a single solid source precursor and characterized using particle induced x-ray emission (PIXE), Fourier transform infrared (FTIR) spectroscopy ...
  • Single-molecule identification of quenched and unquenched states of LHCII 
    Schlau-Cohen, Gabriela S.; Yang, Hsiang-Yu; Kruger, T.P.J. (Tjaart); Xu, Pengqi; Gwizdala, Michal; Van Grondelle, Rienk; Croce, Roberta; Moerner, W.E. (American Chemical Society, 2015-03)
    In photosynthetic light harvesting, absorbed sunlight is converted to electron flow with near-unity quantum efficiency under low light conditions. Under high light conditions, plants avoid damage to their molecular ...
  • Singlet-triplet annihilation in single LHCII complexes 
    Gruber, J. Michael; Chmeliov, Jevgenij; Kruger, T.P.J. (Tjaart); Valkunas, Leonas; Van Grondelle, Rienk (Royal Society of Chemistry, 2015-08)
    In light harvesting complex II (LHCII) of higher plants and green algae, carotenoids (Cars) have an important function to quench chlorophyll (Chl) triplet states and therefore avoid the production of harmful singlet ...
  • Slow and swift heavy ions irradiation of zirconium nitride (ZrN) and the migration behaviour of implanted Eu 
    Mokgadi, T.F. (Thapelo); Madito, M.J. (Moshawe); Mlambo, Mbuso; Skuratov, Vladimir Alexeevich; Motloung, Setumo Victor; Hlatshwayo, Thulani Thokozani (Elsevier, 2019-12)
    Please read abstract in the article.
  • Software and techniques for VLBI data processing and analysis 
    Janssen, Michael; Wagner, Jan; Radcliffe, Jack Frederick; Wagner, Jan (MDPI, 2022-10-10)
    Very-long-baseline interferometry (VLBI) is a challenging observational technique, which requires in-depth knowledge about radio telescope instrumentation, interferometry, and the handling of noisy data. The reduction ...
  • The solid state interaction of palladium with SiC 
    Kabini, Jeaneth Thokozile (University of Pretoria, 2012)
    The solid-state interaction of palladium (Pd) with single crystal silicon carbide (6H- SiC) before and after annealing has been investigated using Rutherford backscattering spectrometry (RBS) in conjunction with RUMP ...
  • Solid state reaction and operational stability of ruthenium Schottky contact-on-6H-SiC under argon annealing 
    Munthali, Kinnock V.; Theron, C.C. (Chris); Auret, Francois Danie; Coelho, Sergio M.M.; Njoroge, Eric Gitau (Springer, 2015-10)
    Thin films of ruthenium-on-6-hexagonal silicon carbide (6H-SiC) were analysed by Rutherford backscattering spectroscopy (RBS) at various annealing temperatures. Some thin film samples were also analysed by scanning electron ...