course103_quiz_1_solution

course103_quiz_1_solution - n i increases exponentially bi...

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7 Quiz-1 Solution: (a) c E E v E f p-type n-type c E E v E f 2 V (b) 82 . 0 ln 2 = = i d a bi n N N q kT ψ V 27 . 0 ) )( ( 2 = + + = d a R bi d a si d N qN V N N W ε μ m (c) E max = = si d a W qN ) 2 / ( 2.1 × 10 5 V/cm (d) As temp. increases,
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Unformatted text preview: n i increases exponentially, bi decreases, hence W d decreases....
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This document was uploaded on 05/26/2010.

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