Question

write any 5 differences between intrinsic and extrinsic semi conductor.

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need 5 differences...
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Answer 1

Answer:

Intrinsic semi conductors :

1) It is the pure form of semi conductor.

2) The conduction is due to the electrons in the conduction bond, electrons and holes

In the valance bond.

3) Increase in temperature increases the no.

Of charge carriers.

4) A semiconductor in its pure form without any impurity is called an intrinsic semi conductor.

5) An intrinsic semi conductor behaves like an insulator at 0 k.

Extrinsic semi conductors :

1) the increasing the carrier concentration in an intrinsic semiconductor is by adding impurity atoms.

2) in n-type semi conductor electrons are majority carriers and in p-type holes are majority carriers.

3) By adding impurity atoms increase the carriers concentration.

4) the process of adding impurities to the intrinsic semi conductor is called doping.

5) the impurity atoms are called dopants and its order is approximately 100 ppm.

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