Compound semiconductor alloys have the flexibility to design energy band gap and/or lattice constant at desired value. This advantage has made these materials important for fabricating many advanced semiconductor devices, such as laser diodes and high-speed electronic devices. The growing importance in application has stimulated both theoretical and experimental studies on the fundamental properties of compound semiconductor alloys, such as bond, clustering, and immiscibility. This article reviews recent progress in understanding these fundamental properties of III-V compound semiconductor alloys.
