Semiconductor exclusively
Devoted to the hegemony of the semiconductia!
deck author
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Chitiz
last studied
25 Nov 2008
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Shortcut to electronic configuration?
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1 2 2 3 3 4 3 4 5 4 5 6 4 5 6 7
s s p s p s d p s f d p s f d p
4 8 8 18 34
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What is the current density J in a semiconductor with v, mu and e?
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J=muxexvh + muxexve
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How is velocity of electron v relatve to Electric field E?
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v=muxE
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How is mobility mu calculated?
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mu=(e*tau)/me
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How is mobility mu calculated?
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mu=(e*tau)/me
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How is conductivity rho related to Current density J?
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rho=J/mu
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if nE be number of electrons per unit energy per unit volume, Z(E) be the density of states in conduction band, F(E) be the probablity of occupation of each state, how are they related to each other?
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nE=F(E)*Z(E)
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What is the Fermi-dirac distribution function?
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F(E)=1/(1+exp(-[E-Ef]/[k*T])
F(E)~exp(-[E-Ef]/[k*T]
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Write expression for Density of states Z(E)
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Z(E)=8*root2*pi*[(me)^3/2]*(E-Ec)^0.5/h^3
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What is inte(0,inf){x^0.5*exp(-x)dx}?
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pi/2, It's a typical beta function derivative
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