Question

Distinguish between p type and n type semiconductors

Answer 1

	p-type Semiconductor	n-type Semiconductor
(i)	In p-type semiconductor trivalent impurities are used for doping.	In n-type semiconductor, pentavalent impurities are used for doping.
(ii)	The impurity is called acceptor impurity.	The impurity is called donar impurity.
(iii)	In p-type semiconductor, the holes act as a majority charge carriers.	In n-type semiconductor, the electrons act as a majority charge carriers.
(iv)	In p-type semiconductor, conductivity is mainly due to holes, which are positively charged.	In n-type semiconductor, conductivity is mainly due to electrons, which are negatively charged.