Semiconductor physics

Which value is closest to the band gap of silicon (Si) at room temperature?

  1. AAbout 0.66 eV
  2. BAbout 1.12 eV
  3. CAbout 3.4 eV
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Answer: B. About 1.12 eV

The band gap of silicon is about 1.12 eV at room temperature. About 0.66 eV is close to germanium (Ge), and about 3.4 eV is close to gallium nitride (GaN), which is classified as a wide-band-gap semiconductor.

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More Semiconductor physics questions

  1. Which statement is correct when phosphorus (P) is added to silicon as an impurity?
  2. What happens to the intrinsic carrier density when the temperature of an intrinsic semiconductor is raised?
  3. Which correctly compares electron and hole mobility in silicon?
  4. Where is the Fermi level located in an n-type semiconductor?
  5. Which correctly describes how the resistivity of an intrinsic semiconductor depends on temperature?