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Semiconductor Physics: A semiconductor has a intrinsic concentration of 1010 cm-3 and has donor impurity concentration o...

Semiconductor Physics:

A semiconductor has a intrinsic concentration of 1010 cm-3 and has donor impurity concentration of 1015 cm-3. Light is shined (uniformly) upon the sample generating 5*1019 electron-hole pairs.cm-3s-1 with a minority carrier lifetime of 10-6 s. What is the net electron-hole recombination rate?

I think at steady state, the electron-hole recombination rate is the same as the generation rate. But the current circumstances of the question make me doubt that assumption or conclusion (the question is 4 marks).

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Answer #1

ni(O Cw Generalion at N-type due To -6 Initially, fon applying ligat CGn Thesmal ali aeneration Tuermal Fcombinaton jati Al4o

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