Semi-conductors and the p-n junction, Part F Mastering Chemistry Part F The gene

Question

Semi-conductors and the p-n junction, Part F Mastering Chemistry

Part F

The generation currents are not strongly altered by externally applied electric fields. However, applied electric fields can affect the drift current. If the applied field increases the potential of the p-type material, then holes are pushed away toward the n-type side more readily, and electrons are drawn away from the n-type side more readily. What would happen if the field increased the potential of the n-type side, instead?

Current would flow in the opposite direction. No current would flow because the increased potential difference would inhibit diffusion. No current would flow because holes and electrons would combine and thus leave no charge carriers. Current would continue to flow normally because recombination currents are not affected by external fields. Current would continue to flow normally because increased recombination currents would cancel the decrease in diffusion currents. p side Junction ng nr n side Conduction band v

Explanation / Answer

By increasing the potential difference,there will be no change in the current flown in the band. Therefore the right answer will be

"No current would flow because the increased potential difference would inhibit diffusion."

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