The curve between charge density and distance | vedclass

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(A) In the depletion layer of a $P-N$ junction,the diffusion of charge carriers creates a region devoid of mobile charge carriers. On the $P$-side of

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(A) In the depletion layer of a $P-N$ junction,the diffusion of charge carriers creates a region devoid of mobile charge carriers. On the $P$-side of the junction,there are stationary negative acceptor ions,resulting in a negative charge density. On the $N$-side of the junction,there are stationary positive donor ions,resulting in a positive charge density. Therefore,the charge density is negative on the $P$-side and positive on the $N$-side,which corresponds to the graph where the curve is below the axis for the $P$-region and above the axis for the $N$-region.

The curve between charge density and distance near a $P-N$ junction will be:

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