A heterostructure is a material system made up of two or more different semiconductor layers, each with distinct electronic properties. These layers are carefully engineered to create interfaces that can enhance the performance of electronic and optoelectronic devices. Heterostructures are commonly used in devices like lasers, transistors, and solar cells. The unique properties of heterostructures arise from the interaction between the different materials, allowing for improved charge carrier mobility and energy band alignment. This technology is crucial in advancing fields such as quantum computing, photovoltaics, and telecommunications, where high efficiency and performance are essential.