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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /2594/CH2/EX2.24 | |
| download | Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.gz Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.bz2 Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.zip | |
initial commit / add all books
Diffstat (limited to '2594/CH2/EX2.24')
| -rwxr-xr-x | 2594/CH2/EX2.24/Ex2_24.sce | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/2594/CH2/EX2.24/Ex2_24.sce b/2594/CH2/EX2.24/Ex2_24.sce new file mode 100755 index 000000000..326ab1bea --- /dev/null +++ b/2594/CH2/EX2.24/Ex2_24.sce @@ -0,0 +1,13 @@ +clc
+Na=1*10^16
+disp("Na = "+string(Na)+" cm^-3")//initializing the value of acceptor concentration.
+Ea_Ev=0.045
+disp("Ea_Ev = "+string(Ea_Ev))//initializing the value of boron acceptor ionization energy.
+Nv=(1.04*10^19)
+disp("Nv = "+string(Nv)+" cm^-3")//initializing the value of effective density of state for valence band.
+Vt=(0.0259)
+disp("Vt = "+string(Vt)+" eV")//initializing the value of thermal voltage.
+p=(1+((Nv/(4*Na))*exp(-(Ea_Ev)/Vt)))^(-1)
+disp("Fraction of holes that are still in the acceptor state,(pa/(pa+p))=(1+((Nv/4*Na)*exp(-(Ea-Ev)/Vt)))^(-1)= "+string(p))//calculation
+
+//this is solved problem 2.11 of chapter 2.
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