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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 /3636/CH7/EX7.10/Ex7_10.sce | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
| download | Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.gz Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.bz2 Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.zip | |
initial commit / add all books
Diffstat (limited to '3636/CH7/EX7.10/Ex7_10.sce')
| -rw-r--r-- | 3636/CH7/EX7.10/Ex7_10.sce | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/3636/CH7/EX7.10/Ex7_10.sce b/3636/CH7/EX7.10/Ex7_10.sce new file mode 100644 index 000000000..1863394d2 --- /dev/null +++ b/3636/CH7/EX7.10/Ex7_10.sce @@ -0,0 +1,36 @@ +clc;
+clear;
+ni=1.5*10^10 //in cm^-3
+delE_iF=0.0259 //in eV
+delE_cF=0.29 //in eV
+phi_G=4.8 //in eV
+impurity_conc=9.9*10^14 //in cm^-3
+affinity=0.55 //in eV
+Const=0.0259 //constant value for kT in eV
+x=4.05 //electron affinity for silicon in eV
+
+//Calculation
+//a)
+n0=ni*exp(delE_iF/Const) //in cm^-3
+phi_s=x+delE_cF
+
+//b)
+Ptype_conc=impurity_conc-n0 //net concentration of p-type on B side in cm^-3
+delE_iF_Bside=Const*log(Ptype_conc/ni) //in eV
+phi_s_Bside=x+delE_iF_Bside+affinity
+
+//d)
+ni1=8*10^12 //increased ni in cm^-3
+delE_iF1=Const*log(n0/ni1) //in eV
+phi_s1=x+(affinity-delE_iF1)
+
+mprintf("electron doping concentration = %.1e cm^-3\n",n0) //The answer provided in the textbook is wrong
+mprintf("workfuntion of the semiconductor = %.2f eV\n",phi_s)
+mprintf("workfuntion of the semiconductor on B side = %.2f eV\n",phi_s_Bside) //The answer provided in the textbook is wrong
+mprintf("workfuntion of the semiconductor at 400K = %.2f eV ",phi_s1) //The answer provided in the textbook is wrong
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