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Calculate the radioactive minority carrier lifetime in gallium arsenide when the minority carriers are electrons injected into a p-type semiconductor region which has a hole concentration of 1018cm-3. The recombination coefficient for gallium arsenide is 7.21*10-10cm3s-1.

Calculate the radioactive minority carrier lifetime in gallium arsenide when the minority carriers are electrons injected into a p-type semiconductor region which has a hole concentration of 1018cm-3. The recombination coefficient for gallium arsenide is 7.21*10-10cm3s-1. Correct Answer 1.39ns

The radioactive minority carrier lifetime ςrconsidering the p-type region is given by- ςr = -1 where Br = Recombination coefficient in cm3s-1 and N = carrier concentration in n-region.

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