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Calculate the carrier lifetime when Cp=5 and Nt=10^10cm^-3.

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Calculate the carrier lifetime when Cp=5 and Nt=10^10cm^-3.

(a) 2*10^11

(b) 2*10^-11

(c) 20*10^-11

(d) 20*10^11

The question was posed to me in an online interview.

Question is from Carrier Life time in chapter Conduction in Semiconductors of Electronic Devices & Circuits

1 Answer

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Right choice is (b) 2*10^-11

To explain I would say: τp=1/(Cp*Nt )

=1/(5*10^10)

=2*10^-11.

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