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Diffstat (limited to '3740/CH2/EX2.7/Ex2_7.sce')
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1 files changed, 19 insertions, 0 deletions
diff --git a/3740/CH2/EX2.7/Ex2_7.sce b/3740/CH2/EX2.7/Ex2_7.sce new file mode 100644 index 000000000..681f7b63c --- /dev/null +++ b/3740/CH2/EX2.7/Ex2_7.sce @@ -0,0 +1,19 @@ +//Optoelectronics - An Introduction, 2nd Edition by J. Wilson and J.F.B. Hawkes
+//Example 2.7
+//OS=Windows XP sp3
+//Scilab version 5.5.2
+clc;
+clear;
+
+//given
+V=-4;//reverse bias voltage applied to a Si diode in V
+//The negative sign indicates reverse bias
+Nd=4e21;//donor impurity level in m^(-3)
+V0=0.8;//potential barrier of the diode in V
+Epsilon0=8.85e-12;//permittivity of free space in SI Units
+Epsilonr=11.8;//relative permittivity of the diode
+A=4e-7;//junction area of the diode in m^2
+e=1.6e-19;//charge of electrons in C
+
+Cj=A/2*(2*e*Epsilon0*Epsilonr*Nd/(V0-V))^(1/2);//junction capacitance of the diode in F
+mprintf("Cj = %.1f pF",Cj/1e-12);//division by 10^(-12) to convert into pF
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