The book presents latest innovations enabling ultrafast, energy-efficient, and reliable technologies across electronic and photonic domains. The book advances beyond the foundations of previous volumes by integrating developments in wide- and ultra-wide-bandgap semiconductors, two-dimensional materials, ferroelectrics, and spintronics with novel device architectures including HEMTs, nanosheet and fork sheet FETs, TFETs, NC-FETs, and in-memory computing systems. Circuit-level topics encompass nanosheet-based RF building blocks, photonic–electronic hybrids, fault-tolerant VLSI, and advanced interconnects. Emphasis is also placed on terahertz and photonic frontiers, highlighting high-capacity communication, imaging, and quantum technologies. Application-driven perspectives include MEMS–AI healthcare platforms, stress hormone and dopamine biosensors, photovoltaic forecasting, and wide-bandgap devices for electric vehicles and smart grids. With contributions from international experts, the volume addresses both fundamental principles and real-world applications, serving as a valuable reference for graduate students, researchers, and professionals seeking insights into the future of high-speed electronics and optoelectronics.

Dr. Aritra Acharyya is currently working as an Assistant Professor at Department of Electronics and Communication Engineering, Kalyani Government Engineering College, Kalyani, West Bengal, India, since July 2024. Earlier, he served the Department of Electronics and Communication Engineering, Cooch Behar Government Engineering College, Harinchawra, Ghughumari, West Bengal, 736170, India, as Assistant Professor during May 2016 to July 2024. He was born in 1986. He received B.E. and M. Tech. degrees from IIEST, Shibpur, India, and Institute of Radio Physics and Electronics, University of Calcutta, India, in the years 2007 and 2010 respectively. Finally, he obtained Ph.D. degree from Institute of Radio Physics and Electronics, University of Calcutta, in the year 2016. His research interests are high frequency semiconductor devices, nanostructures, semiconductor physics, transport phenomena, quantum mechanics, optoelectronics, etc. He has published 95 research papers in peer reviewed national and international journals, 65 research papers in national and international conference proceedings, and several book chapters. He also authored and edited total 14 books.

Professor (Dr.) Angsuman Sarkar is presently serving as a Professor & Head of Electronics and Communication Engineering in Kalyani Government Engineering College, West Bengal. He had earlier served in Jalpaiguri Government Engineering College & Kalyani Government Engineering College as Lecturer, Assistant Professor & Associate Professor of ECE department for more than 23 years. He received the M. Tech degree in VLSI & Microelectronics and later completed his PhD from Jadavpur University. His current research interest spans around study of short channel effects of sub 100nm MOSFETs and nano device modeling. He is a a Senior Member of IEEE, Fellow of Institution of Engineers (IE) India, , Fellow of the Institution of Electronics & Telecommunication Engineers (IETE), Life Member of Indian Society for Technical Education (ISTE) and has served in the past as the Chairman of IEEE Electron Device Society, Kolkata Chapter. He has authored 6 books, 23 contributed book chapters, 110 journal papers in international refereed journals and 68 research papers in national and international conferences.

Dr. Mariya Aleksandrova is currently Assoc. Professor of Fabrication technology of electronics at the Department of Microelectronics, Technical University of Sofia. She earned her Master of Electronic engineering at the same university in 2007, and her PhD in Fabrication technology of electronics in 2010. In her thesis work she pioneered the interface optimization in organic light-emitting devices with novel electron and hole transporting layers and deposition methods. After completing her PhD, Aleksandrova accepted a position as Assist. Prof. at the Department of Microelectronics (TU-Sofia) for 5 years. During that time, she developed new flexible polymeric light-emitting device. In 2015, Dr. Aleksandrova accepted an Associate Professor position at the same university. She has continued her work on flexible electronics, pioneering a special emphasis on energy harvesting in 2018. With constantly expanding scope, her group has evolved its focus in recent years to wearable electronics and thin-film supercapacitors integrated with energy harvesting and printed circuit board. At present she is head of laboratories “Thin-film electronics”, “Photolithography” and “Quality and reliability in automotive electronics”.