Al0.6Ga0.4As1
semiconductorAl0.6Ga0.4As is a direct-bandgap III-V semiconductor alloy formed by alloying aluminum arsenide with gallium arsenide; the 60% aluminum composition positions it in the higher-aluminum range of the AlGaAs family. This material is used in optoelectronic devices—particularly red and near-infrared light-emitting diodes (LEDs) and laser diodes—where its tunable bandgap energy enables emission wavelengths around 650–700 nm; it is also employed in high-speed heterojunction bipolar transistors (HBTs) and integrated photonics. Engineers select AlGaAs alloys over binary GaAs or InGaAs when they need precise wavelength control, improved carrier confinement through bandgap engineering, or enhanced radiative efficiency in specific spectral windows.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | — | eV | — | — |