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C, Si and Ge have same lattice structure...

C, Si and Ge have same lattice structure. Why is C insulator while Si and Ge intrinsic semiconductors?

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Energy required to take out outer orbit electrons is less for Ge and Si but very large for C. So conduction electron is not easily available for C and hence it is insulator.
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AAKASH INSTITUTE ENGLISH-SEMICONDUCTOR ELECTRONICS (MATERIAL, DEVICES AND SIMPLE CIRUITS )-TRY YOUR SELF
  1. Carbon, silicon and germanium have four valence electrons each. These ...

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  2. In a pure semiconductor, the number of conduction electron is 6xx10^(1...

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  3. C, Si and Ge have same lattice structure. Why is C insulator while Si ...

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  4. A semiconductor is known to have an electron concentration of 6xx10^(1...

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  5. Suppose a pure Si-crystal has 6xx10^(28) "atoms" m^(-3). It is doped b...

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