This book, Advances in Semiconductor Physics, Devices and Quantum Dots - Nanotechnology and Future Challenges, is a compilation of chapters on research in the fields of semiconductor physics, devices, and quantum dots. The chapters have been reviewed, and they offer a complete overview of what has been developed recently. The book comprises chapters written by various researchers and reviewed by experts in nanotechnology and engineering. Each chapter is complete in itself, but they are all connected by a common research study topic. This publication aims to provide a thorough overview of the latest research efforts by international authors in the field. It also aims to open new possible research paths for further novel developments.