_Nanoscale Compound Semiconductors and their Optoelectronics Applications_ provides the basic and fundamental properties of nanoscale compound semiconductors and their role in modern technological products. The book discusses all important properties of this important category of materials such as their optical properties, size-dependent properties, and tunable properties. Key methods are reviewed, including synthesis techniques and characterization strategies. The role of compound semiconductors in the advancement of energy efficient optoelectronics and solar cell devices is also discussed. The book also touches on the photocatalytic property of the materials by doping with graphene oxides--an emerging and new pathway. * Covers all relevant types of nanoscale compound semiconductors for optoelectronics, including their synthesis, properties and applications * Provides historical context and review of emerging trends in semiconductor technology, particularly emphasizing advances in non-toxic semiconductor materials for green technologies * Reviews emerging applications of nanoscale compound semiconductor-based devices in optoelectronics, energy and environmental sustainability