diff options
Diffstat (limited to '3763/CH9/EX9.4/Ex9_4.sce')
| -rw-r--r-- | 3763/CH9/EX9.4/Ex9_4.sce | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/3763/CH9/EX9.4/Ex9_4.sce b/3763/CH9/EX9.4/Ex9_4.sce new file mode 100644 index 000000000..676f1888b --- /dev/null +++ b/3763/CH9/EX9.4/Ex9_4.sce @@ -0,0 +1,23 @@ +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) |