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

GaAsP (Gallium Arsenide Phosphide) is a direct bandgap semiconductor, meaning electrons can transition between the valence and conduction bands without involving momentum change. This property makes it efficient for light-emitting applications like LEDs. Silicon and Germanium are indirect bandgap materials, requiring phonon assistance for transitions.

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