This book reveals the origin of the excellent properties of hydrogenated semiconductor materials and their great potential for nanoelectronics, renewable energy, and biological applications by systematically analysing the interrelationships and physical scenarios involved in hydrogenated surface engineering, structure, physical properties, and functions. This book addresses science-passionate readers like scientists and R&D engineers who are interested in synthesis, properties and applications of emerging hydrogenated semiconductor materials, providing them with a quick overview of the latest developments in these fields, and new ideas along with methods for their research works.