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CSE · Paper II · Solid State & Devicescse-1990-subject-08-001

PN junction — UPSC Physics Optional CSE 1990 Paper II

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How is a p-n junction prepared? Explain the charge and potential distributions in such a junction in open circuit. Explain how a p-n junction can be used to build a solar cell. Describe the mechanism of the increase of conductivity of Germanium by doping it with Arsenic.

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