Ga1As0.9P0.1

Ga₁As₀.₉P₀.₁ is a quaternary III-V semiconductor alloy combining gallium arsenide (GaAs) with a small phosphorus substitution, forming a direct-bandgap compound semiconductor with a bandgap between GaAs and GaP. This material is primarily used in optoelectronic and photonic devices where the precise bandgap tuning enables efficient light emission and detection in the near-infrared to visible spectrum. Engineers select GaAsP alloys over pure GaAs or GaP when requiring optimized wavelength performance—particularly for red and amber light-emitting diodes (LEDs), laser diodes, and photodetectors operating in telecommunications and display applications.