Dr. Harraz is a Professor at the Advanced Materials and Nano-Research Centre, Najran University, Saudi Arabia. He received his PhD in Energy Science from Kyoto University, Japan, in 2003. Prof. Harraz was a JSPS Fellow at Kyoto University from 2003-2005, and a visiting scholar in the Department of Materials Science & Engineering, at the University of Delaware and University of Florida, USA. Prof. Harraz is a material scientist and an expert in electrochemistry. His research career has centered on the use of chemical and electrochemical techniques in the synthesis, processing, and characterization of various nanostructured materials, including transition metal oxides, conducting polymers, graphene, and porous semiconductors, with various morphologies for energy, sensing, and environmental applications. He also has particular expertise in porous silicon science and technology. He has extensive experience in managing R&D projects funded by international and national funding agencies. Prof. Harraz is the author of around 250 papers (147 peer review academic articles, 77 abstracts and proceedings in international conferences, and 26 national conferences). He is a reviewer for many international scientific journals and funding agencies.