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-rw-r--r--3636/CH5/EX5.2/Ex5_2.sce11
-rw-r--r--3636/CH5/EX5.2/Ex5_2.txt1
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diff --git a/3636/CH5/EX5.2/Ex5_2.sce b/3636/CH5/EX5.2/Ex5_2.sce
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+clc;
+clear;
+Na=5*10^18 //doping densities in cm^-3
+Nd=5*10^15 //in cm^-3
+ni=1.5*10^10 //in cm^-3
+Const=0.026//constant for kT/e in V
+
+//Calculation
+Vbi=Const*log((Na*Nd)/ni^2)
+
+mprintf("built-in potential= %0.3f V",Vbi) //The answers vary due to round off error
diff --git a/3636/CH5/EX5.2/Ex5_2.txt b/3636/CH5/EX5.2/Ex5_2.txt
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+ built-in potential= 0.841 V \ No newline at end of file