© 2015 Sarah E. Rich

Cosmas Mulwa Muiva

RISE Degree(s) 

PhD in Physics from the University of Botswana

RISE Network(s) 
AMSEN
Nationality 
Kenyan
Employment 

Senior Lecturer, Department of Physics and Astronomy, Botswana International University of Science and Technology (BIUST)

Research 
  • Development of low cost thin film technologies
  • Advanced materials for renewable energy conversion and environmental applications
  • Chalcogenide glasses and reversible phase-change memory (PCM) technologies
  • Nanostructures (fabrication, characterisation, and applications)
  • Bio-nanomaterials and nanocomposites for antimicrobial and wastewater treatment applications
  • Nanotoxicology (accumulation and translocation in environmental systems)
News & Blogs 

The Next Frontier of Memory Devices

Special Accomplishments 
2016 Principal Investigator: "Rare earth metal-doped TiO2 and CuO nanostructures and their application in electrochemical processes," Sponsored by the Office of Research Development and Innovation, Botswana International University of Science and Technology (BIUST)

2015 Project Sponsored by the Office of Research and Development (ORD), University of Botswana: "CuI (111) orientated nanoparticles and thin films: A multi-disciplinary research project"

Selected Conference Papers & Presentations 

Maabong K, Muiva CM. 2010. Fabrication and characterization of spray pyrolysed InxSy thin films for CuInSe2 solar cells. Proceedings of the IASTED Conference on Power and Energy Systems, 6–8 September, Gaborone, Botswana. Acta Press 684(45):22–28

Selected Publications 

Lefatshe K, Muiva CM, Kebaabetswe LP. 2017. Extraction of nanocellulose and in-situ casting of ZnO/cellulose nanocomposite with enhanced photocatalytic and antibacterial activity. Carbohydr. Polym. 164:301–8

Muiva CM, Juma AO, Lepodise LM, Maabong K, Letsholathebe D. 2017. Surfactant assisted chemical bath deposition based synthesis of 1-D nanostructured CuO thin films from alkaline baths. Mater. Sci. Semicond. Process. 67:69–74

Luhanga PVC, Muiva CM, Coetzee SH, Maabong K, Tiedt L, Monowe P. 2016. Optical properties of highly oriented nanostructured CuI (111) thin films. J. Optoelectron. Adv. Mater. 18(9–10):837–41

Maabong K, Muiva CM, Monowe P, Sathiaraj ST, Hopkins M, et al. 2015. Natural pigments as photosensitizers for dye-sensitized solar cells with TiO2 thin films. Int. J. Renew. Energy Res. 5(1):54–60

Mulama AA, Mwabora JM, Oduor AO, Muiva CM, Muthoka B, et al. 2015. Stability investigation in the optical properties of thermally evaporated Ge5Se95-xZnx thin films. J. Adv. Phys. 7(3):1923–30

Muiva CM, Sathiaraj TS, Mwabora JM, Maabong K. 2015. Observation of Meyer-Neldel rule in Se100−xM(M=In, Sb)x chalcogenide glasses. Ceram. Int. 41(2):2348–52

Mulama AA, Mwabora JM, Oduor AO, Muiva CM, Muthoka B. 2014. Investigation of the effect of film thickness on the optical properties of amorphous Se85-xTe15Sbx thin films. Afr. J. Phys. Sci. 1(1):38–42

Mulama AA, Mwabora JM, Oduor AO, Muiva CM. 2014. Optical properties and Raman studies of amorphous Se-Bi thin films. Afr. Rev. Phys. 9(6):33–38

Thobega M, Sathiaraj ST, Maabong K, Muiva CM. 2013. Topology of chemical ordering and influence on optical band gap in ternary Se-In-Bi chalcogenide glasses. J Adv. App. Sci. Res. 4(6):6–12

Muiva CM, Sathiaraj TS, Mwabora JM. 2012. Chemical bond approach to optical properties of some flash evaporated Se100−xSbx chalcogenide alloys. Eur. Phys. J. Appl. Phys. 59(1):10301

Muiva CM, Sathiaraj ST, Maabong K. 2012. Chemical spray pyrolysis path to synthesis of ZnO microsausages from aggregation of elongated double tipped nanoparticles. Mater. Sci. For. 706–709:2577–82

Muiva CM, Moditswe C, Sathiaraj TS. 2012. Chemical synthesis and properties of novel Bi2Se3 nanostructures and microplatelets. ISRN Ceram. 2012:1–6

Muiva CM, Maabong K, Sathiaraj ST, Mwabora JM. 2012. Optical properties of flash evaporated amorphous Se100-xInx thin films for CuInSe2 solar cell applications. Acta Press 760(29): 86-90

Muiva CM, Sathiaraj ST, Mwabora JM. 2011. Thermal and compositional defects in chemical spray pyrolysed indium selenide (In2Se3) thin films: effects on film properties. J. Optoelectron. Adv. Mater. 13(9):1240–45

Muiva CM, Sathiaraj ST, Mwabora JM. 2011. Crystallisation kinetics, glass forming ability and thermal stability in glassy Se100−xInx chalcogenide alloys. J. Non. Cryst. Solids 357(22-23):3726–33

Muiva CM, Sathiaraj TS, Maabong K. 2011. Effect of doping concentration on the properties of aluminium doped zinc oxide thin films prepared by spray pyrolysis for transparent electrode applications. Ceram. Int. 37(2):555–60

External Profile(s) 

Google Scholar

Email Address(es) 
muivac@biust.ac.bw
RISE Degree(s) Completed 
October 2013