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everywhere I look for the equation describing the current of a diode, I get

I=I0exp(qvb/nkt-1)

n=1 for ideal case. for non-ideal diode you got values between 1-2.

in order to calculate n you have the equation: n=1+kt/(2*q*phi)

(phi=contact barrier height)

anyone knows how to derive this equation for n?

thanks.

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# Ideality factor - schotkky diode

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