Fabian I. Ezema is a professor at the University of Nigeria, Nsukka. He earned a PhD in Physics and Astronomy from the University of Nigeria, Nsukka. His research focused on several areas of Materials Science, from synthesis and characterizations of particles and thin-film materials through chemical routes with emphasis on energy applications. For the last 15 years, he has been working on energy conversion and storage (cathodes, anodes, supercapacitors, solar cells, among others), including novel methods of synthesis, characterization and evaluation of the electrochemical and optical properties. He has published about 180 papers in various international journals and given over 50 talks at various conferences. His h-index is 21 with over 1500 citations and he has served as reviewer for several high impact journals and as an editorial board member. TingKai Zhao is a full professor at the School of Materials Science and Engineering of the Northwestern Polytechnical University, Xi'an, China. Prof. Zhao obtained his PhD degree from Materials Science and Engineering of Xi'an Jiaotong University (XJTU) in 2005 and is now the vice-director of the Shaanxi Engineering Laboratory for Graphene New Carbon Materials & Applications. His researcher topics are: the synthesis of graphene, carbon nanotubes (single-wall, multi-wall CNTs and amorphous CNTs), flexible graphite, 2D nanomaterials, the growth mechanism, and applications of carbon nanomaterials in composites, energy conversion (solar cell, supercapacitor and Li-ion batteries), smart device and biosensors. He has published 2 English books, 10 patents more than 100 academic papers at international journals including Nanoscale, Journal of Power Sources, Journal of Alloys and Compounds, Carbon, Scientific Reports and Applied Physics Letters et al., and also served as these Journals' reviewers. He was awarded the first prize of the science and technology of Shaanxi province (2013). Prof. Ishaq Ahmad currently holds the positions of Director General, Centre of Excellence in Physics, National Centre for Physics, Islamabad. He obtained his PhD of Engineering in Nuclear Technology and Applications in Materials Science from Shanghai Institute of Applied Physics,Graduate University of CAS (ChineseAcademy of Science), Beijing, China. He has co-authored over 180 research papers ininternationally reputed journals and contributed 6 books and 8 book chapters in reputed publishers. He supervised several Master’s, PhD, and Postdoctoral local and abroad students. His research interests are focused on ion beam applications in materials/nanomaterials,synthesis of nanomaterials/thinfilms and ion beam analysis of materials. He wasTWAS- UNESCO-iThemba LABS research Associate from 2014 to 2016. He has established international nano center called “NPU-NCP Joint International Research Center on Advanced Nanomaterials & Defects Engineering” at Northwestern Polytechnical University, Xi’an, Shaanxi, China with the collaboration of Prof. Dr.Zhao Tingkai. He has many awards and hours on his credit.