Fabian Ezema is a Professor at the University of Nigeria, Nsukka. He obtained a PhD and MSc. in Physics and Astronomy from University of Nigeria, Nsukka and a BSc from the then Anambra State University of Science and Technology, Enugu. His researches are on several areas of Materials Science: synthesis and characterizations of particles and thin film materials through chemical routes with emphasis on energy applications. He is interested in materials for thin film solar cells fabrication and nanoparticle synthesis. For the last 15 years, he has been working on the nano/submicron-sized materials for energy conversion and storage (cathodes, anodes, supercapacitors, thin film solar cells, DSSC, etc), including novel methods of synthesis, characterization and evaluation of the electrochemical and optical properties.Fabian has published over 200 high impact papers in various national and international journals and gave over 100 talks at various conferences, workshops and seminars. His h-index is 47, i10 index of 191 with about 8021 citations as in google scholar