diff options
Diffstat (limited to '3636/CH10/EX10.6/Ex10_6.sce')
-rw-r--r-- | 3636/CH10/EX10.6/Ex10_6.sce | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/3636/CH10/EX10.6/Ex10_6.sce b/3636/CH10/EX10.6/Ex10_6.sce new file mode 100644 index 000000000..fd81492a1 --- /dev/null +++ b/3636/CH10/EX10.6/Ex10_6.sce @@ -0,0 +1,38 @@ +clc;
+clear;
+Nd=10^15 //donor atoms in cm^-3
+ni=1.45*10^10 //in cm^-3
+k=8.62*10^-5 //in eV/K
+T=300 //in K
+Const=0.025 //coonstant for kT in eV
+
+//Calculation
+//a)
+n=10^15 //in cm^-3
+p=ni^2/Nd //in cm^-3
+delE=Const*log(n/ni) //in eV
+
+//b)
+n0=10^15 //in cm^-3
+p0=10^12 //in cm^-3
+delE_fni=Const*log(n0/ni) //in eV
+delE_ifp=Const*log(p0/ni) //in eV
+
+//c)
+n1=10^18 //in cm^-3
+p1=10^18 //in cm^-3
+delE_fni1=Const*log(n1/ni) //in eV
+delE_ifp1=Const*log(p1/ni) //in eV
+
+mprintf("a)\nelectron concentration= %.1g cm^-3\n",n)
+mprintf("hole concentration= %.2g cm^-3\n",p)
+mprintf("Fermi level w.r.t intrinsic fermi level= %0.3f eV\n",delE)
+mprintf("b)\nelectron concentration= %.1g cm^-3\n",n0)
+mprintf("hole concentration= %.1g cm^-3\n",p0)
+mprintf("Quasi fermi level for n-type carrier= %0.3f eV\n",delE_fni)
+mprintf("Quasi fermi level for p-type carrier= %0.2f eV\n",delE_ifp)
+mprintf("c)\nelectron concentration= %.1g cm^-3\n",n1)
+mprintf("hole concentration= %.1g cm^-3\n",p1)
+mprintf("Quasi fermi level for n-type carrier= %0.2f eV\n",delE_fni1)
+mprintf("Quasi fermi level for p-type carrier= %0.2f eV\n",delE_ifp1)
+//The answers vary due to round off error
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