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| author | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
|---|---|---|
| committer | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
| commit | 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 (patch) | |
| tree | dbb9e3ddb5fc829e7c5c7e6be99b2c4ba356132c /3557/CH17/EX17.8 | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
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initial commit / add all books
Diffstat (limited to '3557/CH17/EX17.8')
| -rw-r--r-- | 3557/CH17/EX17.8/Ex17_8.sce | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/3557/CH17/EX17.8/Ex17_8.sce b/3557/CH17/EX17.8/Ex17_8.sce new file mode 100644 index 000000000..2ee762592 --- /dev/null +++ b/3557/CH17/EX17.8/Ex17_8.sce @@ -0,0 +1,28 @@ +//Example 17.8//
+
+a=23*10^18;//m^-3
+q=0.16*10^-18;//C //1 coulomb of charge
+b=0.364;//m^2/(V.s)//Electron mobility of germanium
+c=0.190;//m^2/(V.s) //Hole Mobility of Germanium
+s300K=a*q*(b+c)
+mprintf("s300K = %f ohm^-1 m^-1",s300K)
+Eg=0.66;//V //band gap
+k=86.2*10^-6;//eV/K //Boltzmann constant
+T=300;//K //absolute temperature
+s0=s300K*%e^((Eg)/(2*k*T))
+mprintf("\ns0 = %e ohm^-1 m^-1",s0)
+Eg1=-0.66;//eV//band gap
+i=60;//ohm^-1 m^-1 //extrinsic conductivity
+j=log(i/s0);// Taking log to remove exponential term
+//mprintf("j = %f ",j)
+T1=1/((j*2*k)/Eg1);//(Cross multiply and dividing)
+mprintf("\nT1 = %i K = 135degree C",T1)
+//(b)
+Ed=0.012;//eV
+T2=373;//K //absolute temperature
+s1=i*%e^((Ed)/(k*T2))
+mprintf("\ns1 = %f ohm^-1 m^-1",s1)
+//At 300K
+T3=300;//K //absolute temperature
+s2=s1*%e^-((Ed)/(k*T3))
+mprintf("\ns2 = %f ohm^-1 m^-1",s2)
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