What do you mean by depletion layer and potential barrier for a p-n junction.

Asked by Topperlearning User | 18th Jun, 2014, 10:42: AM

Expert Answer:

Depletion layer is the region created around the p-n junction which is devoid of free charge carriers and has immobile ions.It is created due to diffusion of majority carriers across the junction when p-n junction is formed.

Potential barrier is the potential difference or junction voltage developed across the junction due to migration of majority charge carriers across it when p-n junction is formed. It opposes further migration of majority carriers across the junction due to this junction voltage.

Answered by  | 18th Jun, 2014, 12:42: PM