Please explain in great detail If the ACCEPTOR dopant concentration N_A is INCRE

Question

Please explain in great detail If the ACCEPTOR dopant concentration N_A is INCREASED in a p-n junction, what happens to the hole concentration, assume temperature remains constant? a) the hole density increases in both the n-type and p-type b) the hole density increases in the n-type and decreases in the p-type c) the hole density increases in the p-type, n-type remains constant. d) nothing, the number of available free electrons depend on temperature only in both types As the temperature DECREASES in a p-n junction, what happens to the reverse saturation current, I_s assuming I_EXT remains constant? a) nothing, I_S is due to dopant only b) I_S decreases as temperature decreases because the number of minority carriers decrease. c) I_S increases as temperature decreases because the number of minority carriers increase d) I_D will decrease as I_S increases to keep I_EXT constant

Explanation / Answer

If the acceptor concentration is increased then, the hole density increase in n-type and decreases in p-type.

As the temperature decreases in a p-n junction, the reverse saturation current also decreases because the number of minority carrier decreases.

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