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Physics208110 marksThe semiconductor diode

What do you mean by the contact potential? Give band scheme of a p-n Junction by illustrating: (a) Potential difference V, resulting from the positive donor ions in the n-side of the junction and the negative acceptor ions in the p-side of the depletion layer (b) Potential energy barrier faced by th

What do you mean by the contact potential? Give band scheme of a p-n Junction by illustrating: (a) Potential difference V, resulting from the positive donor ions in the n-side of the junction and the negative acceptor ions in the p-side of the depletion layer (b) Potential energy barrier faced by the majority charge carriers (electrons) in the n-side of the diode as they attempt to cross the junction. (c) Potential energy barrier faced by the majority side of the diode as they attempt to cross the junction.[10]

When a p-type and an n-type semiconductor are joined together, diffusion of charge carriers occurs across the junction: - Holes from the p-side diffuse into the n-side - Electrons from the n-side diffuse into the p-side At the junction, recombination takes place. This leaves behind: - Negative ac...

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