Barrier potential of a p-n junction diode does not depend on:
- diode design
- temperature
- forward bias
- doping density
The Correct Option is A
Solution and Explanation
The barrier potential of a p-n junction diode is primarily determined by the difference in work functions between the p-type and n-type materials and the intrinsic properties of the materials themselves. It does not depend on diode design. On the other hand, temperature, doping density, and forward bias voltage can influence the barrier potential.
So, the correct option is (A): diode design
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Concepts Used:
P-n Junction
A P-N junction is an interface or a boundary between two semiconductor material types, namely the p-type and the n-type, inside a semiconductor.
Biasing conditions for the p-n Junction Diode:
in p-n junction diode two operating regions are there:
- P-type
- N-type
There are three biasing conditions for p-n junction diode are as follows:
- Zero bias: When there is no external voltage applied to the p-n junction diode.
- Forward bias: P-type is connected to positive terminal of the voltage potential while n-type is connected to the negative terminal.
- Reverse bias: P-type is connected to negative terminal of the voltage potential while n-type is connected to the positive terminal.