Intrinsic Semiconductor

Question

Intrinsic semiconductor has charge carriers generated mainly by?

RankGuru · Accepted Answer

1. **Intrinsic Semiconductor**: A pure semiconductor material (like Silicon or Germanium) without any impurities.
2. **Carrier Generation**: At absolute zero, the valence band is completely full and the conduction band is empty. The material behaves as an insulator.
3. **Effect of Temperature**: As temperature increases, some valence electrons gain enough **thermal energy** to jump across the forbidden energy gap ($E_g$) into the conduction band.
4. **Mechanism**: Each electron that jumps leaves behind a vacancy in the valence band called a **hole**. Thus, electron-hole pairs are created thermally.
5. **Doping Check**: Doping is used to create *extrinsic* semiconductors. Thermal excitation is the primary source for *intrinsic* ones.

Intrinsic Semiconductor

Select the correct option:

🔒 Solution Hidden from View

More semiconductor devices Practice Questions

Intrinsic semiconductor conductivity primarily depends on:

Depletion region width increases primarily under?

AND gate output is high only when?

Mobility μ of charge carriers defined as?

Full-wave rectifier advantage over half-wave?

Forward biasing a PN junction means?

Majority carriers in p-type semiconductor are?

n-type semiconductor doping introduces?

Photodiode typically operated in?

Approximate barrier potential of silicon PN junction at room temperature?

In forward region, diode current increases roughly?

LED emits light when?

About This Question

Solution