Ga0.6In0.4As

Ga₀.₆In₀.₄As is a III-V semiconductor alloy combining gallium arsenide and indium arsenide in a 60:40 ratio, engineered to achieve an intermediate bandgap energy between its parent compounds. This material is used primarily in high-speed optoelectronic and photonic integrated circuits, particularly for infrared photodetectors, heterojunction bipolar transistors (HBTs), and quantum well devices operating in the near-to-mid infrared wavelength ranges. Its lattice-matched or near-lattice-matched properties with GaAs and InP substrates make it valuable for epitaxial growth in monolithic integrated circuits, offering superior performance over bulk InAs or GaAs alone in applications demanding both high electron mobility and wavelength tunability.