Research Articles (Physics): Recent submissions

Now showing items 341-360 of 719

Study of ultra-hard materials of the B-C-N-O quaternary system

Habanyama, A.; Msikita, M.; Simfukwe, Joseph; Baliga, B.T.; Mumba, N.K.; Mulenga, M.; Samukonga, G. (Elsevier, 2018-12)

Please read abstract in the article.
Defect levels induced by double substitution of B and N in 4H-SiC

Igumbor, Emmanuel; Danga, Helga Tariro; Omotoso, Ezekiel; Meyer, Walter Ernst (Elsevier, 2019-03)

Please read abstract in the article.
Electronic properties and defect levels induced by group III substitution–interstitial complexes in Ge

Igumbor, E.; Dongho-Nguimdo, G.M.; Mapasha, Refilwe Edwin; Meyer, Walter Ernst (Springer, 2019-08)

Please read abstract in the article.
Effect of Tb3+ concentration on the structure and optical properties of triply doped ZnAl2O4:1% Ce3+,1% Eu3+,x% Tb3+ nano-phosphors synthesized via citrate sol-gel method

Motloung, Setumo Victor; Tshabalala, Kamohelo George; Kroon, Robin E.; Hlatshwayo, Thulani Thokozani; Mlambo, Mbuso; Mpelane, Siyasanga (Elsevier, 2019-01)

Please read abstract in the article.
Electrochemical performance of two-dimensional Ti3C2-Mn3O4 nanocomposites and carbonized iron cations for hybrid supercapacitor electrodes

Oyedotun, Kabir Oyeniran; Momodu, Damilola Y.; Naguib, Michael; Mirghni, Abdulmajid Abdallah; Masikhwa, T.M. (Tshifhiwa); Khaleed, Abubakar A.; Kebede, Mesfin; Manyala, Ncholu I. (Elsevier, 2019-04)

Please read abstract in the article.
Associated aspects on structure, morphology and photoluminescence of MgAl2O4:x% Gd3+ nanophosphor prepared via citrate sol-gel method

Motloung, Setumo Victor; Motaung, Tshwafo Elias; Hlatshwayo, Thulani Thokozani; Koao, Lehlohonolo Fortune; Malevu, Thembinkosi Donald; Mpelane, Siyasanga (Springer, 2019-06)

Please read abstract in the article.
Ab-initio study of the optical properties of beryllium-sulphur co-doped graphene

Olaniyan, Okikiola; Igumbor, Emmanuel; Khaleed, Abubakar A.; Mirghni, Abdulmajid Abdallah; Manyala, Ncholu I. (American Institute of Physics, 2019)

Graphene is a carbon material with excellent properties, which makes it applicable in a myriad of applications. However, the range of the applications of graphene can be extended to the developing field of nanoelectronics ...
Band gap engineering of a MoS2 monolayer through oxygen alloying : an ab initio study

Andriambelaza, Noeliarinala Felana; Mapasha, Refilwe Edwin; Chetty, Nithaya (IOP Publishing, 2018-10)

Oxygen (O) alloying in a MoS2 monolayer appearing in different shapes: line-ordered, cluster and random have been theoretically designed, for band gap engineering in order to extend its nanotechnological applications. The ...
Electronic properties of B and Al doped graphane : a hybrid density functional study

Mapasha, Refilwe Edwin; Igumbor, Emmanuel; Andriambelaza, Noeliarinala Felana; Chetty, Nithaya (Elsevier, 2018-04)

Please read abstract in the article.
Energy dissipation mechanisms in the FCPb light-harvesting complex of the diatom Cyclotella meneghiniana

Elnour, Huzifa Mohammed Ahamed Mohammed; Dietzel, Lars; Ramanan, Charusheela; Büchel, Claudia; Van Grondelle, Rienk; Kruger, T.P.J. (Tjaart) (Elsevier, 2018-10)

Transient absorption spectroscopy has been applied to investigate the energy dissipation mechanisms in the nonameric fucoxanthin-chlorophyll-a,c-binding protein FCPb of the centric diatom Cyclotella meneghiniana. FCPb ...
The future of quantum biology

Marais, Adriana; Adams, Betony; Ringsmuth, Andrew K.; Ferretti, Marco; Gruber, J. Michael; Hendrikx, Ruud; Schuld, Maria; Smith, Samuel L.; Sinayskiy, Ilya; Kruger, T.P.J. (Tjaart); Petruccione, Francesco; Van Grondelle, Rienk (Royal Society, 2018-11)

Biological systems are dynamical, constantly exchanging energy and matter with the environment in order to maintain the non-equilibrium state synonymous with living. Developments in observational techniques have allowed ...
The role of far-red spectral states in the energy regulation of phycobilisomes

Kruger, T.P.J. (Tjaart); Van Grondelle, Rienk; Gwizdala, Michal (Elsevier, 2019-04)

The main light-harvesting pigment-protein complex of cyanobacteria and certain algae is the phycobilisome, which harvests sunlight and regulates the flow of absorbed energy to provide the photochemical reaction centres ...
Switching an individual phycobilisome off and on

Gwizdala, Michal; Botha, Joshua Leon; Wilson, Adjele; Kirilovsky, Diana; Van Grondelle, Rienk; Kruger, T.P.J. (Tjaart) (American Chemical Society, 2018-04)

Photosynthetic organisms have found various smart ways to cope with unexpected changes in light conditions. In many cyanobacteria, the lethal effects of a sudden increase in light intensity are mitigated mainly by the ...
Examination of high porosity activated carbon obtained from dehydration of white sugar for electrochemical capacitor applications

Oyedotun, Kabir Oyeniran; Barzegar, Farshad; Mirghni, Abdulmajid Abdallah; Khaleed, Abubakar A.; Masikhwa, T.M. (Tshifhiwa); Manyala, Ncholu I. (American Chemical Society, 2019-01)

In this research study, we have presented a simple two-step synthesis path to producing a cost-effective, high-porosity carbon material via acidic dehydration of white sugar. The electrochemical behavior of the activated ...
Magnetotactic bacteria used to generate electricity based on Faraday's law of electromagnetic induction

Smit, B.A.; Van Zyl, Elritha; Joubert, J.J.; Meyer, Walter Ernst; Preveral, S.; Lefevre, C.T.; Venter, S.N. (Stephanus Nicolaas) (Wiley, 2018-05)

Magnetotactic bacteria (MTB) have the unique ability to produce magnetic particles surrounded by a biomembrane to form the magnetosome organelle. Therefore, MTB have novel physical and magnetic properties and have consequently ...
Investigating the effect of heat treatment on the diffusion behaviour of xenon implanted in glassy carbon

Ismail, Mahjoub Yagoub Abdalla; Malherbe, Johan B.; Odutemowo, Opeyemi Shakirah; Njoroge, Eric Gitau; Hlatshwayo, Thulani Thokozani; Mlambo, Mbuso; Wendler, Elke (Elsevier, 2018-03)

The effect of sequential isochronal annealing on the diffusion behavior of implanted xenon in glassy carbon is reported. Glassy carbon substrates were implanted with 200 keV xenon ions to a fluence of 1 × 1016Xe+cm−2. The ...
Interface interaction of tungsten film deposited on glassy carbon under vacuum annealing

Innocent A.J. (Audu); Hlatshwayo, Thulani Thokozani; Njoroge, Eric Gitau; Malherbe, Johan B. (Elsevier, 2018-02)

Thin films of tungsten (W) were deposited on glassy carbon substrates using magnetron sputtering system. The as-deposited samples were annealed under vacuum at temperatures ranging from 600 to 1000 °C for 1 h. The interface ...
Effect of swift heavy ion irradiation in the migration behavior of Xe implanted into TiN

Vasco, H.A.; Hlatshwayo, Thulani Thokozani; Motloung, Setumo Victor; Mlambo, Mbuso; Mwankemwa, Benard S.; Petrovic, Srdjan; Skuratov, Vladimir Alexeevich (Elsevier, 2019-05)

Please read abstract in the article.
The effects of varying the Eu3+ concentration on the structural and optical properties of Mg1.5Al2O4.5:x% Eu3+ (0 ≤ x ≤ 2) nanophosphors prepared by sol–gel method

Maphiri, Vusani Muswa; Dejene, B.F.; Motaung, Thabiso Eric; Hlatshwayo, Thulani Thokozani; Ndwandwe, O.M.; Motloung, Setumo Victor (Sage, 2018)

Mg1.5Al2O4.5:x% Eu3þ (0 x 2) nanopowders were successfully synthesized via sol–gel method. The X-ray diffraction (XRD) spectrum revealed that the Mg1.5Al2O4.5:x% Eu3þ matches the single phase of face-centred cubic MgAl2O4. ...
Irradiation effects of swift heavy ions on palladium films deposited on 6H-SiC substrate

Thabethe, Thabsile Theodora; Nstoane, T.; Biira, Saphina; Njoroge, Eric Gitau; Hlatshwayo, Thulani Thokozani; Skuratov, Vladimir Alexeevich; Malherbe, Johan B. (Elsevier, 2019-03)

Please read abstract in the article.

Now showing items 341-360 of 719

Search UPSpace

Browse

All of UPSpace
This Collection
- Issue Date
- Authors
- Titles
- Subjects
- Supervisor
- UP Author
- UP Postgraduate
- Type

Recently added

Research Articles (Physics): Recent submissions

Search UPSpace

Browse

All of UPSpace

This Collection

My Account

UPSpace Workspace