Aluminium gallium indium phosphide

Aluminum gallium indium phosphide ( AlInGaP ), also referred to as Aluminiumindiumgalliumphosphid, is a III-V compound semiconductor consisting of aluminum gallium indium phosphide and of the alloy. The material is a direct semiconductor and is used for production of bright light emitting diodes and laser diodes in the range of color orange - red, yellow to green- yellow. The color of the light emitting diode is selected by the change of the band gap by the mixing ratio of the two starting substances.

Crystalline layers of AlInGaP grown by epitaxy on a substrate of gallium arsenide ( GaAs) or gallium phosphide (GaP ).