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Diffstat (limited to '3557/CH17/EX17.12/Ex17_12.sce')
| -rw-r--r-- | 3557/CH17/EX17.12/Ex17_12.sce | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/3557/CH17/EX17.12/Ex17_12.sce b/3557/CH17/EX17.12/Ex17_12.sce new file mode 100644 index 000000000..2db1cca7d --- /dev/null +++ b/3557/CH17/EX17.12/Ex17_12.sce @@ -0,0 +1,16 @@ +//Example 17.12//
+
+n=(1.4*10^12);//m^-3 //density of charge carrier
+q=(0.16*10^-18);//C // Coulomb of Charge
+ue=0.720;//m^2 /(V s) //Electron mobility of GaAs
+uh=0.020;//m^2 /(V s) //Hole mobility of GaAs
+s=n*q*(ue+uh)
+mprintf("s = %e ohm^-1 m^-1",s)
+Eg=1.47;//eV //band gap
+k=86.2*10^-6;//eV/K //Boltzmann constant
+T=300;//K //absolute temperature
+s0=s*%e^((Eg)/(2*k*T))
+mprintf("\ns0 = %e ohm^-1 m^-1 ",s0)
+T2=323;//k //absolute temperature
+s50=s0*%e^-((Eg)/(2*k*T2))
+mprintf("\ns50 = %e ohm^-1 m^-1",s50)
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