Dr. Refilwe Mapasha (University of Pretoria) is a computational physicist with a PhD from the University of Pretoria (2013). His main research interest is the improvement of the efficiency of 2D materials through defects generation for the energy production as well as the energy storage of high-performance batteries using quantum mechanical density functional theory. Dr. Mapasha is affiliated with the South African Institute of Physics (SAIP) and National Institute for Theoretical and Computational Sciences (NIThecs). He has collaborated with several South African universities as well as the Université Marien Ngouabi, Brazzaville, Congo. Dr Mapasha holds a C3 rating from the NRF.