i want to gain answer about problem2 tion 13. 1O Problems Intrinsic Semiconducto

Question

i want to gain answer about problem2

tion 13. 1O Problems Intrinsic Semiconductors 1. Calculate the number or electrons in the conduction band for silicon nt T= 300 K. 2. Would germanium still be a semiconductor if the hand gap was 4 eV wide? Explain iar: Calculate N, at various temperatures, Also discuss extrinsic effects.) 3. Calculate the Fermi energy 01 an intrinsic semiconductor 17, 0 K. (Hint: Give a mathematical expression for the fact that the probability of finding an electron at the top of the valence band plus the probability of finding an electron at the bottom of the conduction band must be l.) Le! Ne /VP and m: m 4. At what (hypothetical) temperature would all 10* (em ) valence electrons be excited to the conduction band in a semiconductor with Ep1 eV? Hin: Use a proprammable calculator

Explanation / Answer

No it will behave as a insulator

Reason: The energy band gap of insulator ia typically 4 ev or more than that. So it will behave as insulator.

For semiconductor the band gap should be less than 2

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