What happens to the bulk resistance of a pure semiconductor as the amount of doping in it is increased?
What happens to the bulk resistance of a pure semiconductor as the amount of doping in it is increased? Correct Answer It decreases
- The overall resistance of a pure semiconductor is reduced as the amount of doping in it is increased.
- Doping is the act of adding impurities into the structure of a pure semiconductor.
- The resistance is likely to decrease because doping increases the number of charge carriers and thus increasing the conductivity of the semiconductor which in turn means that the resistivity is reduced.
- Semiconductors belong to Group 4 of the periodic table.
- If they are doped with elements of Group 3, p-type semiconductors are formed, having majority charge carriers as holes.
- If they are doped with elements of Group 5, n-type semiconductors are formed, having majority charge carriers as electrons.
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Feb 20, 2025