Intrinsic Si lattice does not contain any free electrons at 0 K as all the electrons in Si lattice have contributed to form bonds. Therefore, at 0 K Si acts as an insulator. Explain how Si becomes a semiconductor at room temperature

Intrinsic Si lattice does not contain any free electrons at 0 K as all

1.	Intrinsic Si lattice does not contain any free electrons at 0 K as all the electrons in Si lattice have contributed to form bonds. Therefore, at 0 K Si acts as an insulator. Explain how Si becomes a semiconductor at room temperature
Answer» As the TEMPERATURE increase ELECTRONS move from valence to conduction band.Explanation:There EXIST a very small band gap between SEMICONDUCTOR, so even at room temperature (a very small increase in Temperature) electrons move from valence to conduction band.

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Intrinsic Si lattice does not contain any free electrons at 0 K as all the electrons in Si lattice have contributed to form bonds. Therefore, at 0 K Si acts as an insulator. Explain how Si becomes a semiconductor at room temperature

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