Reverse biased pn junction — Free Electronics Illustration

Electronics

Reverse biased pn junction

Cross-section schematic of a reverse-biased pn junction with the p-type region on one side and the n-type region on the other, shown in contrasting colors such as red or pink-red for p-type and blue for n-type. The external reverse-bias polarity is clearly indicated with the negative terminal connected to the p side and the positive terminal connected to the n side. At the interface, a widened pale depletion region is shown, broader than normal, emphasizing reverse bias; the potential barrier may be depicted as taller. Clean technical illustration style with clearly labeled semiconductor regions and junction.

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