| n-type semiconductors | p-type semiconductor |
| 1. These are extrinsic semiconductors obtained by doping Ge or Si crystals with pentavalent dopants like Phosphorus. | 1. These are extrinsic semiconductors obtained by doping Ge or Si crystals with pentavalent dopants like aluminium. |
| 2. Free electrons are the majority charge caries and holes are **** charge carries. | Free electrons are the **** charge carries and holes are majority charge carries. |
