Dr. Machaba Letswalo

Deputy Head: Teaching and Learning
Name: Machaba Letswalo
Location: John Orr Building 7162 Doornfontein Campus
Physics Academic Staff  Staff Members

Contact Details:
Tel: 011 559 6012

Email: letswalom@uj.ac.za

About Dr. Machaba Letswalo

Field of Specialisation: Material Science

Research interests

Dr. Letswalo Machaba Leanyatsa Abraham is an accomplished Experimental Condensed Matter Physicist and serves as the Deputy Head of Department for Teaching and Learning in the Physics Department. His research is primarily focused on the development and application of luminescent materials, including rare earth-doped inorganic phosphors, ZnO, fluoride, organic phosphors, and perovskites. He has extensive experience in these materials for applications such as optoelectronics, displays, phototherapy, solar cells, water purification through photocatalytic methods, and super-capacitance anode lithium battery storage. He is also dedicated to supervising doctoral and master’s students working on cutting-edge research in luminescent nanomaterials, which are employed in a wide range of technologies from solar cells to solid-state lighting, phototherapy, and more.

Teaching Physics:

• Building Science 1
• Analytical Chemistry 1, 2 & 4

Recent Publications

1. Investigation of red‐emitting CaMoO4: Eu3+ phosphor by partitioning of substitutional PO43− ions via solid‐state reaction method  

MLA Letswalo, L Reddy, A Balakrishna, HC Swart, OM Ntwaeaborwa  Luminescence 39 (9), e4905

2. Multi-colour emission from ZnO [SO4]: Eu2+ nanophosphors: Effects of SO42-and Eu2+ doping concentration  

MLA Letswalo, L Reddy, A Balakrishna, MA Mamo, RM Erasmus, …

Materials Today Communications 38, 107944

3. Synthesis and investigation of energy transfer mechanism in Sm3+ and Eu3+ doped Na6Mg(SO4)4 nanophosphors via solution combustion technique  

KB Morebodi, L Reddy, MLA Letswalo, A Balakrishna, LJB Erasmus, …

Inorganic and Nano-Metal Chemistry, 1-12

4. Integrity vs. Quality of Assessments: Are They Compromised on the Online Platform?.  

L Reddy, ML Letswalo, AP Sefage, BV Kheswa, A Balakrishna, …

Pedagogical Research 7 (2)

5. The role of sulfate ions on distinctive defect emissions in ZnO: Ce3+ nanophosphors-A study on the application in color display systems  

MLA Letswalo, L Reddy, A Balakrishna, HC Swart, OM Ntwaeaborwa

Journal of Luminescence 240, 118462

6. Influence of SO42− anionic group substitution on the enhanced photoluminescence behaviour of red emitting CaMoO4: Eu3+ phosphor  

MLA Letswalo, L Reddy, A Balakrishna, HC Swart, OM Ntwaeaborwa

Journal of Alloys and Compounds 854, 157022

7. Effect of BO33− ions on photoluminescence of CaMoO4: Eu3+ phosphor  

MLA Letswalo, L Reddy, A Balakrishna, HC Swart, OM Ntwaeaborwa

Journal of Vacuum Science & Technology B 37 (1)

Publication Links:

Google Scholar

ORCID

Scopus h Index

Research Gate