Solving Semiconductor Prob: Get Help Now!

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Hello all !

I'm trying to solve a problem (link below)
i have a problem to define the energy(s) distance {exp numerators} so i can't insert to the values needed into the equ. i wrote down.
any help would be great !

http://rapidshare.com/files/406858775/ex3.pdf"

TNX !
 
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hey !

noone can help me out ?

another prob :
i solved a prob (also, semiconductor)
i'll be happy to recived any feedback of my solution.
TNX !

link to the prob :
http://rapidshare.com/files/407245896/ex1.pdf
 
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Your links are dead-ends
 
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