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    Having some issues solving this question. I think that I have to go by the fact that for an intrinsic semiconductor Conductivity is Roughly proprotional to exp(Eg/2kT) but I don't really see how to run this through and come up with a value for the energy gap.

    It seems like some simple proporitonality thing, but for the life of me I can't get an answer out of it.
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    (Original post by Eremor)
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    Having some issues solving this question. I think that I have to go by the fact that for an intrinsic semiconductor Conductivity is Roughly proprotional to exp(Eg/2kT) but I don't really see how to run this through and come up with a value for the energy gap.

    It seems like some simple proporitonality thing, but for the life of me I can't get an answer out of it.
    So you're told that
     \sigma = Ae^{E_g/2kT}
    where sigma is conductivity and A is just a constant. We can rewrite this as:
     \sigma e^{-E_g/2kT} = const
    Does that help?
 
 
 
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