From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001 From: priyanka Date: Wed, 24 Jun 2015 15:03:17 +0530 Subject: initial commit / add all books --- 3401/CH9/EX9.5/Ex9_5.sce | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100755 3401/CH9/EX9.5/Ex9_5.sce (limited to '3401/CH9/EX9.5/Ex9_5.sce') diff --git a/3401/CH9/EX9.5/Ex9_5.sce b/3401/CH9/EX9.5/Ex9_5.sce new file mode 100755 index 000000000..85b4ac766 --- /dev/null +++ b/3401/CH9/EX9.5/Ex9_5.sce @@ -0,0 +1,27 @@ +clc + +T=300 //K +k=8.617*10**-5//eV/K +e=1.6*10**-19 //C +esp=11.7 +esp0=8.85*10^-14 +phibe=0.67 //V +A=114 //A/K^2-cm^2 +Na=10^18 //cm^-3 +Nd=10^16 //cm^-3 +taup0=10^-7 +taun0=10^-7 +Dp=10 //cm^2/s +Dn=25 //cm^2/s +Lp=1.0*10**-3 //cm +Ln=1.58*10**-3 //cm +pn0=2.25*10**4 //cm^-3 +np0=2.25*10**2 //cm^-3 + + +a=k*T +Jst=(A*T^2)*exp(-phibe/a) +disp(Jst,"Richardson constant in A/K^2-cm^2 is=") + +Js=((e*Dn*np0)/Ln)+((e*Dp*pn0)/Lp) +disp(Js,"reverse saturation current density in A/cm^2 is=") -- cgit