This is Zhe Chuan Feng's third book on the topic of III-nitride materials, following the original III-Nitride Semiconductor Materials (2006) and the subsequent III-Nitride Devices and Nanoengineering (2008). The development of these materials and devices is moving so rapidly that constant updates and amendments are needed to reflect new research discoveries. This book covers recent innovation and achievements in the field, in particular those made since 2009.