Semiconductor Electronics Materials Devices And Simple Circuits Ques 42

42. Barrier potential of a $p-n$ junction diode does not depend on

[2003]

(a) doping density

(b) diode design

(c) temperature

(d) forward bias

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Answer:

Correct Answer: 42.(b)

Solution:

  1. (b) Barrier potential does not depend on diode design. Barrier potential depends upon temperature, doping density, and forward biasing.

Potential barrier is the potential difference created across the P-N junction due to the diffusion of electrons and holes.