Question

because of accumulation of holes and electrons in the depletion layer, an electric field Vb is developed in the depletion layer called
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Answer 1

Barrier Potential

Explanation:

• Barrier potential - In the depletion area, the electric field behaves as a barrier. The electrons must be carried beyond the electric field's barrier by external energy.

• The barrier potential is the difference in potential between the p and n regions of a semiconductor across the depletion layer.

• Because it resists charge carrier passage on both sides of the semiconductor, it is called the barrier potential.

• The barrier potential depends on :

1. type of semiconductor,
2. amount of doping and
3. on the temperature.