Multiple choice technology

which one among the following shows Direct BandGap?

  1. Si

  2. Ge

  3. GaAsP

  4. none of these.

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Direct bandgap semiconductors allow efficient light emission and absorption. GaAsP (Gallium Arsenide Phosphide) is a III-V direct bandgap material. Silicon and Germanium are indirect bandgap materials, making them poor for optoelectronic applications.