Department of Physics

Prof BM Mothudi

College of Science, Engineering and Technology
School of Science
Department: Physics
Associate Professor
Tel: 011 670 9069
Fax: 011 670 3643
E-mail: mothubm@unisa.ac.za

Qualifications

  • Ph.D. in Physics (University of the Free State, 2009)

Fields of academic interests

Research interests

  • Experimental Solid State Physics
  • Condensed Matter Physics
  • Semiconductor Physics
  • Nanophosphors

Field of Specialisation

  • Experimental Solid State Physics
  • Condensed Matter Physics
  • Semiconductor Physics
  • Nanophosphors
  • Graphene Nanocomposites
  • Semiconductor Physics
  • Photovoltaics, Organic Solar Cells,
  • Selective Solar Absorber

Books

   Book Chapters

  • Omar Bajjou, Malik Maaza, Mohammed Khenfouch, B Mothudi, M LEKALA, Mimouna Baitoul: PH and concentration effect on the optical absorption properties of porphyrin nanorods functionalized graphene oxide. European Microscopy Congress 2016: Proceedings, 12/2016: pages 49-50;ISBN: 9783527808465, DOI:10.1002/9783527808465.EMC2016.4464
  • Luyanda L. Noto, Hendrik C. Swart, Bakang M. Mothudi, Pontsho S. Mbule, Mokhotjwa S. Dhlamini: The Dynamics of Luminescence. Luminescence - An Outlook on the Phenomena and their Applications, 11/2016: pages 13-32; , DOI:10.5772/65050
  • Saleh Khamlich, Mokhotjwa Dhlamini, Bakang Mothudi, Malik Maaza: Low-Temperature Aqueous Coatings for Solar Thermal Absorber Applications. Biobased and Environmental Benign Coatings, 04/2016: pages 225-243; , ISBN: 9781119184928, DOI:10.1002/9781119185055.ch9

Journal articles

  • I Derkaoui, M Khenfouch, I Elmokri, B.M Mothudi, M.S Dhlamini, S.J Moloi, I Zorkani, A Jorio, M Maaza:Structural and optical properties of hydrothermally synthesized vanadium oxides nanobelts. 03/2017; 186(1):012007., DOI:10.1088/1757-899X/186/1/012007
  • Bajjou, M Khenfouch, M Baïtoul, B Mothudi, M Dhlamini, E Faulques, M Maaza: Vibrational and optical properties of Meso-tetrakis(4-phenylsulfonica-acid) porphyrin decorated with graphene oxide.. 03/2017; 186(1):012003., DOI:10.1088/1757-899X/186/1/012003
  • Issam Derkaoui, Mohammed Khenfouch, Ibrahim Elmokri, Bakang M. Mothudi, Mokhotjwa S. Dhlamini, Sabata J. Moloi. Anouar Jorio, Izeddine Zorkani, Malik Maaza: The effect of graphene layers on the growth of vanadium oxide nanostructures: Structural, morphological and optical investigations and mechanisms revelation. Advanced Materials Letters 02/2017; 8(3):276-282., DOI:10.5185/amlett.2017.1440
  • G.L. Kabongo, G.H. Mhlongo, B.M. Mothudi, K.T. Hillie, P.S. Mbule, M.S. Dhlamini: Structural, Photoluminescence and XPS properties of Tm3+ ions in ZnO nanostructures. DOI:10.1016/j.jlumin.2017.02.024
  • S. Khamlich, T. Khamliche, M.S. Dhlamini, M. Khenfouch, B.M. Mothudi, M. Maaza: Rapid microwave-assisted growth of silver nanoparticles on 3D graphene networks for supercapacitor application. Journal of Colloid and Interface Science 01/2017; 493., DOI:10.1016/j.jcis.2017.01.020
  • Fokotsa V Molefe, Mohammed Khenfouch, Mokhotjwa S Dhlamini, Bakang M Mothudi: Spectroscopic investigation of charge and energy transfer in P3HT/GO nanocomposite for solar cell applications. Advanced Materials Letters 12/2016; 2017(8(3)):246-250., DOI:10.5185/amlett.2017.1409
  • K.Obi Reddy, C. Uma Maheswari, M.S. Dhlamini, B.M. Mothudi, Jinming Zhang, Jun Zhang, Rajini Nagarajan, A. Varada Rajulu: Preparation and characterization of regenerated cellulose films using borassus fruit fibers and an ionic liquid. Carbohydrate Polymers 12/2016; 160., DOI:10.1016/j.carbpol.2016.12.051
  • A Diallo, T.B. Doyle, B.M. Mothudi, E. Manikandan, V. Rajendran, M. Maaza: Magnetic behavior of biosynthesized Co3O4 nanoparticles. Journal of Magnetism and Magnetic Materials 10/2016; 424., DOI:10.1016/j.jmmm.2016.10.063
  • Guy L Kabongo, Pontsho S Mbule, Gugu H Mhlongo, Bakang M Mothudi, Kenneth T Hillie, Mokhotjwa S Dhlamini: Photoluminescence Quenching and Enhanced Optical Conductivity of P3HT- Derived Ho 3+ -Doped ZnO Nanostructures. Nanoscale Research Letters 09/2016; 11(1)., DOI:10.1186/s11671-016-1630-3
  • P.S. Mbule, O.M. Ntwaeaborwa, B.M. Mothudi, M.S. Dhlamini: Structural and Optical characterization of nanoparticulate manganese doped zinc silicate phosphors prepared by sol-gel and combustion methods. Journal of Luminescence 06/2016; 179., DOI:10.1016/j.jlumin.2016.06.048
  • LL Noto, SKK Shaat, Dirk Poelman, MS Dhlamini, BM Mothudi, HC Swart: Structure, photoluminescence and thermoluminescence study of a composite ZnTa2O6/ZnGa2O4 compound doped with Pr3+. Optical Materials 05/2016; 55:68., DOI:10.1016/j.optmat.2016.03.029
  • Abdoulaye Diallo, Bakang M. Mothudi, Elayaperumal Manikandan, Malik Maaza: Luminescent Eu 2 O 3 nanocrystals by Aspalathus linearis ’ extract: structural and optical properties. Journal of Nanophotonics 04/2016; 10(2):026010., DOI:10.1117/1.JNP.10.026010
  • M. Khenfouch, R. Minnis Ndimba, A. Diallo, S. Khamlich, M. Hamzah, M. S. Dhlamini, B. M. Mothudi, M. Baitoul, V. V. Srinivasu, M. Maaza: Artemisia herba-alba Asso eco-friendly reduced few-layered graphene oxide nanosheets: Structural investigations and physical properties. Green Chemistry Letters and Reviews 04/2016; 9(2):122-131., DOI:10.1080/17518253.2016.1181791
  • L.L. Noto, S.K.K. Shaat, Dirk Poelman, M.S. Dhlamini, B.M. Mothudi, H.C. Swart: Cathodoluminescence mapping and thermoluminescence of Pr3+ doped in a CaTiO3/CaGa2O4 composite phosphor. Ceramics International 03/2016; 42(8)., DOI:10.1016/j.ceramint.2016.03.070
  • Sweety Sarma, Bakang Moses Mothudi, Mokhotjwa Simon Dhlamini: Observed coexistence of memristive, memcapacitive and meminductive characteristics in polyvinyl alcohol/cadmium sulphide nanocomposites. Journal of Materials Science Materials in Electronics 01/2016; 27(5)., DOI:10.1007/s10854-016-4330-y
  • Issam Derkaoui, Mohammed Khenfouch, Ibrahim Elmokri, Sabata Jonas Moloi, Bakang Moses Mothudi, Mokhotjwa Simon Dhlamini, Malik Maaza, Izeddine Zorkani, Anouar Jorio: Experimental Investigation of the Effect of Graphene Nanosheets on the Optical-Electrical Properties of Vanadium Oxide Nanocomposites. Graphene 01/2016; 05(01):14-24., DOI:10.4236/graphene.2016.51002
  • A. Karoro, Z.Y. Nuru, L. Kotsedi, Kh. Bouziane, B.M. Mothudi, M. Maaza: Selective Solar Absorbers’ Properties of Laser Treated Electrodeposited Tubular Co-Al2O3 Nanocomposites. DOI:10.1016/j.matpr.2015.08.032
  • S. Sarma, B. M. Mothudi, M. S. Dhlamini: Unipolar resistive switching behaviour of copper doped polyvinyl alcohol/lead sulphide quantum dot device. Journal of Materials Science Materials in Electronics 12/2015; 27(4)., DOI:10.1007/s10854-015-4223-5
  • S. Khamlich, T. Mokrani, M.S. Dhlamini, B.M. Mothudi, M. Maaza: Microwave-assisted synthesis of simonkolleite nanoplatelets on nickel foam-graphene with enhanced surface area for high-performance supercapacitors. Journal of Colloid and Interface Science 09/2015; 461., DOI:10.1016/j.jcis.2015.09.033
  • A. Karoro, Z.Y. Nuru, L. Kotsedi, Kh. Bouziane, B.M. Mothudi, M. Maaza: Laser nanostructured Co nanocylinders-Al2O3 cermets for enhanced & flexible solar selective absorbers applications. Applied Surface Science 08/2015; 347:679-684., DOI:10.1016/j.apsusc.2015.04.098
  • Hendrik C Swart, Odireleng M Ntwaeaborwa, Pontsho S Mbule, Mokhotjwa S Dhlamini, Bakang B Mothudi: P3HT: PCBM Based Solar Cells: A Short Review Focusing on ZnO Nanoparticles Buffer Layer, Post-Fabrication Annealing and an Inverted Geometry. DOI:10.17265/2161-6221/2015.1-2.002
  • Guy L. Kabongo, Gugu H. Mhlongo, Thomas Malwela, Bakang M. Mothudi, Kenneth T. Hillie, Mokhotjwa S. Dhlamini: Microstructural and photoluminescence properties of sol–gel derived Tb3+ doped ZnO nanocrystals. Journal of Alloys and Compounds 04/2014; 591:156–163., DOI:10.1016/j.jallcom.2013.12.075
  • G.L. Kabongo, G.H. Mhlongo, B.M. Mothudi, K.T. Hillie, H.C. Swart, M.S. Dhlamini: Enhanced exciton emission from ZnO nano-phosphor induced by Yb3+ ions. Materials Letters 03/2014; 119:71–74., DOI:10.1016/j.matlet.2013.12.07
  • H.C. Swart, J.J. Terblans, O.M. Ntwaeaborwa, R.E. Kroon, B.M. Mothudi: PL and CL degradation and characteristics of SrAl2O4: Eu2+,Dy3+ phosphors. Physica B Condensed Matter 05/2012; 407(10):1664–1667., DOI:10.1016/j.physb.2011.09.112
  • B.M. Mothudi, O.M. Ntwaeaborwa, A. Kumar, K. Sohn, H.C. Swart: Phosphorescent and thermoluminescent properties of SrAl 2O 4:Eu 2+, Dy 3+ phosphors prepared by solid state reaction method. Physica B Condensed Matter 05/2012; 407(10)., DOI:10.1016/j.physb.2011.10.033
  • B. M. Mothudi, M. A. Lephoto, O. M. Ntwaeaborwa, J. R. Botha, H. C. Swart: Thermoluminescent and stuctural properties of BaAl 2O 4:Eu 2+,Nd 3+,Gd 3+phosphors prepared by combustion method. Physica B Condensed Matter 05/2012; 407(10)., DOI:10.1016/j.physb.2011.09.100
  • M.A. Lephoto, O.M. Ntwaeaborwa, Shreyas S. Pitale, H.C. Swart, J.R. Botha, B.M. Mothudi: Synthesis and characterization of BaAl 2O 4:Eu 2+ co-doped with different rare earth ions. Physica B Condensed Matter 05/2012; 407(10-10):1603-1606., DOI:10.1016/j.physb.2011.09.096
  • H C Swart, J J Terblans, O M Ntwaeaborwa, R E Kroon, B M Mothudi: Author's personal copy PL and CL degradation and characteristics of SrAl 2 O 4 : Eu 2 þ ,Dy 3 þ phosphors. Physica B Condensed Matter 05/2012; 407(10):1664
  • B.M. Mothudi, O.M. Ntwaeaborwa, Shreyas S. Pitale, H.C. Swart: Luminescent properties of Ca0.97Al2O4:Eu-0.01(2+),DY0.023+ phosphors prepared by combustion method at different initiating temperatures. Journal of Alloys and Compounds 10/2010; 508(2):262-265., DOI:10.1016/j.jallcom.2010.08.113
  • B M Mothudi, O M Ntwaeaborwa, S S Pitale, H C Swart: Luminescent properties of Ca0.97Al2O 4:Eu0.01 2+,Dy0.02 3+ phosphors prepared by combustion method at different initiating temperatures. Journal of Alloys and Compounds 01/2010; 508(2):262-265.
  • B.M. Mothudi, O.M. Ntwaeaborwa, J.R. Botha, H.C. Swart: Photoluminescence and phosphorescence properties of MAl2O4:Eu 2+, Dy 3+ (M=Ca, Ba, Sr) phosphors prepared at an initiating combustion temperature of 500 °C. Physica B Condensed Matter 12/2009; 404(22):4440-4444., DOI:10.1016/j.physb.2009.09.047
  • H. C. Swart, J. J. Terblans, O. M. Ntwaeaborwa, E. Coetsee, B. M. Mothudi, M. S. Dhlamini: Photon emission mechanisms of different phosphors. Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms 08/2009; 267(16):2630-2633., DOI:10.1016/j.nimb.2009.05.041
  • H C Swart, J J Terblans, O M Ntwaeaborwa, E Coetsee, B M Mothudi, M S Dhlamini: Author's personal copy Photon emission mechanisms of different phosphors. Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms 05/2009

Projects

  • Metal doped -Zinc oxide (M:ZnO) thin films: A transparent conducting oxide for organic solar cells applications
  • Nanostructured Solar Selective Absorber Coatings for Applications in Concentrated Solar
  • Thermal Plants – Parabolic TroughStructural and optical properties of biosynthesized Europium oxide
  •  Nanostructured graphene donor hybrid solar cells.
  • Iron (III) Oxide Nanostructured Thin Films Based Selective Solar Absorber for Concentrating Solar Power Application
  • ZnO: Er3+, Yb3+ up-converter for efficiency enhancement in P3HT – based organic solar cells.
  • Thermoluminescence for the defect study in persistent luminescence materials