Dr Francis Opoku is a lecturer in the Department of Chemistry at the Kwame Nkrumah University of Science and Technology (KNUST), Ghana. He graduated cum laude with his B.Sc. (Hons) Chemistry (2010) and M. Phil. Inorganic Chemistry (2014) degrees from KNUST, Ghana. He received his PhD in Chemistry from the University of Johannesburg, South Africa in 2019 with Prof. Penny Govender, focusing on first–principles studies on the development of semiconductor–based photocatalyst materials for applications in photocatalytic water splitting and degradation of pollutants. He obtained the University of Johannesburg Global Excellence and Stature (UJ-GES) Fellowship during his PhD studies. He continued his research career as a postdoc in Prof. Penny P. Govender’s lab for high-throughput design of an ultrasensitive sensor for detection of volatile organic compounds, toxic gases and biomolecules using the synergic effect of two-dimensional van der Waals heterostructures. I am working on collaborative projects with the Department of Biochemistry/UJ (Dr M Simelane); School of Resources and Enviroment, University of Electronic Science and Technology, China (Prof Hassan Karimi-Maleh) and a German collaborator from Technische Universität Berlin (Dr Mirabbos Hojamberdiev). I have supervised two master students. I am also a member of the South African Chemical Institute, Water Institute of South Africa, Royal Society of Chemistry and Ghana Science Association. His research interests focused on the design of novel two-dimensional materials with applications in water splitting, photodegradation of organic pollutants, molecular and gas sensors, optoelectronic device, thermoelectric and photovoltaic cell.