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A heterojunction is formed between two different materials: semiconductor A and semiconductor B, where B has...

A heterojunction is formed between two different materials: semiconductor A and semiconductor B, where B has a larger band gap than A. A is p-doped to 10^17 cm-3 and B is n-doped to 10^15 cm-3. Assume all dopants are ionized, and the doping concentrations are >> ni for A and B. How will the widths of the depletion regions in A and B compare to each other, and why?

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