Question
Asked Sep 28, 2019
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Assume that an n type semiconductor is uniformly illuminates, producing a uniform
generation rate G. Show that in steady state the change in the semiconductor
excess
conductivity is given by Ao gun p G
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Assume that an n type semiconductor is uniformly illuminates, producing a uniform generation rate G. Show that in steady state the change in the semiconductor excess conductivity is given by Ao gun p G

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Expert Answer

Step 1

In n-type Semiconductors, small amount of impurities is added in the pure form of semiconductor, which provides a large no. of free electrons.

Here ‘n’ denotes the majority of negative charges (electrons) in compared to the positive charges(holes).

Step 2

Change in semiconductor conductivity is given as-

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Where oConductivity of material qMagnitude of the charge Moblity of electrons Mobility of holes G Excess generation rate 7 =Temperature

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Step 3

Semiconductor conductivity is the property of the material which measur...

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..(1) d'nb+u°ib= . Where p magnitude of hole n magnitude of electrons

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