Ultrawide Bandgap Semiconductors

(Ultra) wide bandgap ((U)WBG) materials offer unparalleled characteristics: high breakdown fields, wide thermal tolerance range, and radiation resistance, enabling high-power, high-temperature, and harsh-environment operation. This Special Topic is dedicated to exploring (U)WBG semiconductors and their emergent properties, focusing on their remarkable material characteristics and diverse applications. We invite contributions across critical domains, including advanced synthesis techniques for scalable material growth, in-depth analyses of fundamental electronic and optical properties, innovative device design and fabrication strategies, experimental demonstrations of (U)WBG device applications, and discussions on emerging challenges and future research directions. By bringing together diverse expertise and focusing on both fundamental understanding and practical implementation, this special topic will contribute significantly to unlocking the full potential

Guest Editors: Man Hoi Wong, Elaheh Ahmadi, Oliver Bierwagen, and Uttam Singisetti