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clear
//
//
//
//Variable declaration
mew_e=0.13 //mobility of electron(m**2/Vs)
mew_h=0.05 //mobility of holes(m**2/Vs)
e=1.6*10**-19
ni=1.5*10**16 //number of electron hole pairs
N=5*10**28
//Calculation
sigma1=ni*e*(mew_e+mew_h) //intrinsic conductivity(ohm-1 m-1)
ND=N/10**8
n=ni**2/ND
sigma2=ND*e*mew_e //conductivity(ohm-1 m-1)
sigma3=ND*e*mew_h //conductivity(ohm-1 m-1)
//Result
printf("\n intrinsic conductivity is %0.3f *10**-3 ohm-1 m-1 %0.3f ",sigma1*10**3,sigma2)
printf("\n conductivity during donor impurity is %0.3f ohm-1 m-1",sigma2)
printf("\n conductivity during acceptor impurity is %0.0f ohm-1 m-1",sigma3)
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