- #1
savi
- 9
- 0
in books we have read that there lies a forbidden gap between conduction band and valence band. and electrons can not exist in this gap i.e. probability of electron being found in this region should be zero.
BUT the fermi level,which has 50% prabality to contain an electron is found in forbidden gap for a semi conductor generally. how can this be possible if no electron can exist in forbidden gap?
BUT the fermi level,which has 50% prabality to contain an electron is found in forbidden gap for a semi conductor generally. how can this be possible if no electron can exist in forbidden gap?