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The forbidden energy gap $E_g$ for a semiconductor is typically of the order of
- A.$1 \text{ eV}$
- B.$10 \text{ eV}$
- C.$0 \text{ eV}$
- D.$50 \text{ eV}$
Show correct answer & step-by-step solution
Correct answer: A — $1 \text{ eV}$
Solution
Semiconductors are defined by an energy gap that is small enough to allow electron excitation from the valence band to the conduction band at room temperature. This gap is typically around , unlike insulators which have much larger gaps.
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