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-rw-r--r--3636/CH8/EX8.2/Ex8_2.sce25
-rw-r--r--3636/CH8/EX8.2/Ex8_2.txt2
2 files changed, 27 insertions, 0 deletions
diff --git a/3636/CH8/EX8.2/Ex8_2.sce b/3636/CH8/EX8.2/Ex8_2.sce
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--- /dev/null
+++ b/3636/CH8/EX8.2/Ex8_2.sce
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+clc;
+clear;
+ni=1.5*10^10 //in cm^3
+Na=5*10^16 //in cm^3
+Nd=5*10^18 //in cm^3
+VBE=0.6 //in V
+WB=3*10^-4 //in cm
+Const=0.026 //constant for kT/e in V
+
+//Calculation
+//a)
+np0=ni^2/Na //in cm^-3
+deln_x=(np0/WB)*(((exp(VBE/Const)-1)*(2/3*WB))-WB/3)
+
+//b)
+deln_x1=(np0/WB)*(exp(VBE/Const)-1)*WB
+
+mprintf("Excess minority carrier concentration at x=WB/3 = %1.2e cm^-3\n",deln_x) //The answers vary due to round off error
+mprintf("Excess minority carrier concentration at x=0 = %1.2e cm^-3\n",deln_x1) //The answers vary due to round off error
+
+
+
+
+
+
diff --git a/3636/CH8/EX8.2/Ex8_2.txt b/3636/CH8/EX8.2/Ex8_2.txt
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+ Excess minority carrier concentration at x=WB/3 = 3.16e+13 cm^-3
+Excess minority carrier concentration at x=0 = 4.74e+13 cm^-3 \ No newline at end of file