Prof. Sanjay J. Dhoble obtained his M.Sc. degree in Physics from Rani Durgavati University, Jabalpur, India in 1988. He obtained his Ph.D. degree in 1992 in Solid State Physics from Nagpur University, Nagpur. Dr. Dhoble is presently working as a Professor in the Department of Physics, R.T.M. Nagpur University, Nagpur, India. During his research career, he has worked on the synthesis and characterization of solid-state lighting materials, as well as development of radiation dosimetry phosphors using thermoluminescence techniques and utilization of fly ash. Dr. Dhoble has filed 20 patents and published more than 583 research papers. He has published several books with various publishers. He was also a recipient of India's Top Faculty Research Award-2018 by Careers 360, for the top ten researchers in India in Physics on the basis of research papers published in Scopus research database in session 2017-2018. Dr. N. Thejo Kalyani is working as an Assistant Professor in the Department of Applied Physics, Laxminarayan Institute of Technology, Nagpur, India. She obtained her Master's degree in Physics from Sri Venkateswara University, Tirupati, India. She completed her doctoral research from R.T.M. Nagpur University, Nagpur, India in 2010 on the topic entitled Development of Red Organic Light Emitting Diode (OLED) . Her research interests include the synthesis, characterization of various organic complexes and fabrication of OLED devices and displays by vacuum deposition and solution techniques. She has published 42 peer-reviewed research papers in national and international journals of repute besides 16 other publications including book chapters and 28 papers in conference proceedings. She also co-authored an Elsevier book on Principles and applications of organic light emitting diodes . She is a reviewer for many national and international journals. She has authored 10 Textbooks for B.E/ B.Tech /B.Sc in highly reputed International and National Publishers. She is associated with various professional bodies such as Material Research Society of India, Luminescence Society of India. Dr. Abdul Kariem Arof is a retired Professor from the Department of Physics, Faculty of Science, University of Malaya in Kuala Lumpur, Malaysia. His areas of expertise include solid state Ionics and devices. He has more than 30 years teaching and research experience. Dr. Abdul Kariem has published more than 300 research papers in peer reviewed journals. He has produced more than 100 PhD and M.Sc graduates and has delivered talks in many international conferences.