Multiple choice

The band gap of Silicon at room temperature is

  1. 1.3 eV

  2. 0.7 eV

  3. 1.1 eV

  4. 1.4 eV
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

For Silicon at 0 K,
At any temperature
$E_{gT} = E_{g0} - 3.6 \times 10^{-4}T$
At T = 300 K,
$E_{g300} = 1.21 - 3.6 \times 10^{-4} \times 300 = 1.1 eV$
This is standard value, that must be remembered.

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