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The barrier potential of a p-n junction ...

The barrier potential of a p-n junction depends on (i) type of semiconductor material (ii) amount of doping and (iii) temperatur e. Which one of the following is correct?

A

(i) and (ii) only

B

(ii) only

C

(ii) and (iii) only

D

(i),(ii) and (iii)

Text Solution

Verified by Experts

The correct Answer is:
D
The barrier potential V of p-n junction diode
(a) is proportional to temperature T.
(b) increases with the increase of number densisty of donor atom and acceptor atom in the two parts of the diode.
( c) decreases with the increase of number densisty (`n_(i))` of the thermal electron and hole of the pure semiconductor. This `n_(i)` depends on the material of the semiconductor.
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