Physics - Semiconductors Question with Solution | TestHub

Light Emitting Diodes (LEDs) are manufactured using different semiconductor materials to emit light of specific wavelengths.

Aluminium Gallium Arsenide (AlGaAs) is a semiconductor material with a bandgap suitable for emitting low-energy photons, which correspond to the infrared and red regions of the electromagnetic spectrum.

According to standard semiconductor properties, AlGaAs is primarily used to manufacture LEDs that emit infrared radiation.

Answer: infra red radiation