summaryrefslogtreecommitdiff
path: root/3763/CH9/EX9.4/Ex9_4.sce
diff options
context:
space:
mode:
Diffstat (limited to '3763/CH9/EX9.4/Ex9_4.sce')
-rw-r--r--3763/CH9/EX9.4/Ex9_4.sce23
1 files changed, 23 insertions, 0 deletions
diff --git a/3763/CH9/EX9.4/Ex9_4.sce b/3763/CH9/EX9.4/Ex9_4.sce
new file mode 100644
index 000000000..676f1888b
--- /dev/null
+++ b/3763/CH9/EX9.4/Ex9_4.sce
@@ -0,0 +1,23 @@
+clear
+//
+//
+//
+
+//Variable declaration
+mew_e=0.13 //mobility of electron(m**2/Vs)
+mew_h=0.05 //mobility of holes(m**2/Vs)
+e=1.6*10**-19
+ni=1.5*10**16 //number of electron hole pairs
+N=5*10**28
+
+//Calculation
+sigma1=ni*e*(mew_e+mew_h) //intrinsic conductivity(ohm-1 m-1)
+ND=N/10**8
+n=ni**2/ND
+sigma2=ND*e*mew_e //conductivity(ohm-1 m-1)
+sigma3=ND*e*mew_h //conductivity(ohm-1 m-1)
+
+//Result
+printf("\n intrinsic conductivity is %0.3f *10**-3 ohm-1 m-1 %0.3f ",sigma1*10**3,sigma2)
+printf("\n conductivity during donor impurity is %0.3f ohm-1 m-1",sigma2)
+printf("\n conductivity during acceptor impurity is %0.0f ohm-1 m-1",sigma3)