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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/EX2.23 | |
| 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/EX2.23')
| -rwxr-xr-x | 2594/CH2/EX2.23/Ex2_23.sce | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/2594/CH2/EX2.23/Ex2_23.sce b/2594/CH2/EX2.23/Ex2_23.sce new file mode 100755 index 000000000..f4f4c9823 --- /dev/null +++ b/2594/CH2/EX2.23/Ex2_23.sce @@ -0,0 +1,18 @@ +clc
+Nd=1*10^17
+disp("Nd = "+string(Nd)+"cm^-3") //initializing the value of effective energy density of state.
+Ec_Ed=0.045
+disp(" Ec_Ed = "+string(Ec_Ed))//initializing the value of donor ionisation level.
+Vt=0.0259
+disp("Vt = "+string(Vt)+" eV ")//initializing the value of thermal voltage.
+Nc=2.8*10^19
+disp(" Nc = "+string(Nc)+"cm^-3")//initializing the value of effective density of state of conduction band.
+e=2.718
+disp("exp = "+string(e))//initializing the value of exponential.
+N=(((Nc/Nd)*e^((-(Ec_Ed))/Vt))+1)^-1
+disp("Fraction of electron still in the donor state,(nd/(nd+n)=(((Nc/Nd)*e^((-Ec_Ed)/Vt))+1)^-1)= "+string(N))//calculation
+
+
+//this is solved problem 2.10 of chapter 2.
+
+
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