Professor Hahn is Regents Professor of the Jeonbuk National University (JBNU), Fellow of the Korea Academy of Science and Technology (KAST), Fellow of the American Ceramic Society (ACerS), and Fellow of the International Association of Advanced Materials (IAAM). He joined JBNU in 1991, before which he worked for LG Metals Research Center for 1988-1991 after he received his Ph.D. in Metallurgical Engineering from the University of Utah in 1988. His research interest is the synthesis of metal and metal oxide nanostructures and their applications for solar cells, chemical and biological sensors, and printed electronics, resulting in over 320 SCI papers (over 14000 citations, h-index over 61 in Google scholar) and 17 patents. He also authored or edited 6 books including Metal Oxide Nanostructures and Their Applications (5 volume sets) published by American Scientific Publishers in 2010. He received MCARE Best Research Award 2019 and Woo SeongIl Materials Award 2018 by KIChE, Asian Energy Technology Award 2017 by International Association of Advanced Materials, Rudolf A. Marcus Award for outstanding research in the area of chemical science in 2016, the American Ceramic Society Global Ambassador Award 2016, the Scientist of the Month Award in 2011 by Korea Ministry of Education, Science and Technology, the CBNUs Best Research Professor Award consecutively in 2008-2010, and Top 100 Scientists Award four times in 2005, 2011, 2014 and 2015 accredited by International Biographical Center, Cambridge, UK.

Prof. Volker Hesselstudiedchemistry at Mainz University/D.1994:Institut fur Mikrotechnik Mainz/Germany (Director R&D); 2005:ProfessorEindhoven University of Technology/NL; 2018:Deputy Dean (Research), Professor University of Adelaide, Australia; 2019: part-time professor University of Warwick/UK. He is author of529 peer-reviewed publications(h-index:77). He received the AIChE Excellence in Process Development Research Award, IUPAC ThalesNano Prize in Flow Chemistry, and all EUs research excellence grants (ERC Advanced/Proof of Concept/Synergy, FET OPEN). He was an authority in a 35-teamed Parliament Enquete Commission Future Chemical Industry and research Director of the Andy Thomas Centre for Space Resources.

Lifeng Liu (Researcher ID A-2522-2012, Orcid ID: 0000-0003-2732-7399) received his Bachelor degree in Applied Physics from Beijing Jiaotong University (2001), and both his Master (2004) and Ph.D. (2007) degrees in Condensed Matter Physics from the Institute of Physics (IoP), Chinese Academy of Sciences, under the supervision of Prof. SishenXie (Academician of CAS and TWAS). He joined Max Planck Institute of Microstructure Physics (MPI-Halle) in 2007, first working as a postdoctoral researcher and then as a staff scientist, under the supervision of the late Prof. Ulrich Goesele. He started his independent research career in 2008 and became a Group Leader in 2009 at MPI-Halle. In 2011, he moved to the International Iberian Nanotechnology Laboratory (INL) and set up a research group there, where his research interest focuses on electrochemical energy conversion and storage including (photo)electrocatalysis, rechargeable batteries, and supercapacitors. He has filed 3 PCT patents and published ca. 170 papers in peer-reviewed journals. In addition, he delivered 70+ oral presentations at international conferences and workshops including ca. 40 plenary/keynote/invited talks. Besides, he was the principal organizer or co-organizer of several international conferences. Life was the recipient of FCT Investigator Grant 2014, Young Researcher Award 2015 by the Portuguese Electrochemical Society, and the Emerging Investigator 2019 elected by RSC journal Chemical Communications.

Bikash Sinha was born in 1945, he is a first-class Science Graduate from the University of Calcutta who obtained his TRIPOS from the Cambridge University in Natural Science in 1967 and obtained his Ph.D. from London University in 1970 and D.Sc. in 1981. Dr. Sinha had lived in England almost 12 years, teaching and researching in Rutherford High Energy Physics Laboratory and Kings College, London. Now, he is with Indias Atomic Energy establishments, now retired, he headed two institutions, famousSaha Institute of Nuclear Physics and Variable Energy Cyclotron Centre. Internationally known, he has travelled extensively and known to most of the peers of Physics for Europe, USA, former USSR and Japan. He has published more than 300 papers. The pioneering work on Quark Gluon Plasma is already well recognised internationally. He lead the team from India to participate in the experiments at CERN, Geneva, as well as RHIC and BNL, USA, a first of its kind from India. He along with his colleagues established the thermometric signals of Quark Gluon Plasma as a definitive signals; already confirmed by experiments. Recently, his breakthrough work on Hawking radiation and entropy from the relic of QCD phase transition, at the primordial epoch of a few microseconds after the big bang and its signatures in the universe has made a tremendous impact.

Dr. Amela Ajanovic is an Associate Professor at the Energy Economics Group at Vienna University of Technology. She holds a master's degree in electrical engineering and a Ph.D. in energy economics at Vienna University of Technology. She is responsible for research, teaching, project acquisition, and scientific coordination in energy economics with a focus on sustainable transport. Her main research interests are alternative fuels and alternative automotive technologies, energy, and transport policies as well as transition to a sustainable energy system and long-term energy scenarios. She has been involved in several national and international research projects related to these topics. She has authored more than 50 papers and journal articles. She is also a lecturer and faculty member of the MSc Program Renewable Energy Systems.