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Fermi Energy level with respect to band gap energy

  • Thread starter Matt1234
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  • #1
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Homework Statement


Calculate Efi with respect to the center of the bandgap in silicon for t= 200, 400, 600 kelvin.


Homework Equations


ni = Nc e^-((Ec- Ef)/(kt))

k = boltzman constant
t= temperature in kelvin
Ec = energy level of the conduction band
ef= fermi energy level
ni= carrier concentration
Nc = densitiy of states in conduction band


The Attempt at a Solution



Im not sure how to approach this problem, please help.
 

Answers and Replies

  • #2
You should have been given all the other variables to be able to solve this. Do you know the concentration and the density of states?
 

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