From 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 Mon Sep 17 00:00:00 2001 From: prashantsinalkar Date: Tue, 10 Oct 2017 12:27:19 +0530 Subject: initial commit / add all books --- 3636/CH6/EX6.9/Ex6_9.sce | 28 ++++++++++++++++++++++++++++ 3636/CH6/EX6.9/Ex6_9.txt | 1 + 2 files changed, 29 insertions(+) create mode 100644 3636/CH6/EX6.9/Ex6_9.sce create mode 100644 3636/CH6/EX6.9/Ex6_9.txt (limited to '3636/CH6/EX6.9') diff --git a/3636/CH6/EX6.9/Ex6_9.sce b/3636/CH6/EX6.9/Ex6_9.sce new file mode 100644 index 000000000..be644dff2 --- /dev/null +++ b/3636/CH6/EX6.9/Ex6_9.sce @@ -0,0 +1,28 @@ +clc; +clear; +ni=1.5*10^10 //in cm^-3 +e=1.6*10^-19 //in eV +Na=10^16 //doping density in cm^-3 +Nd=10^16 //in cm^-3 +tau_p0=5*10^-7 //in s +tau_n0=5*10^-7 //in s +Dn=25 //in cm^2/s +Dp=10 //in cm^2/s +epsilon_r=11.7 //in F/cm +epsilon_0=8.85*10^-14 //in F/cm +myu_n=1350 //in cm^2/V*s +myu_p=450 //in cm^2/V*s +V=0.65 //in V +Const=0.0259 //constant for kT/e in V + +//Calculation +pn0=ni^2/Nd //in cm^-3 +np0=ni^2/Na //in cm^-3 +Lp=sqrt(Dp*tau_p0) //in cm +Ln=sqrt(Dn*tau_n0) //in cm +Js=(((e*Dp*pn0)/Lp)+((e*Dn*pn0)/Lp)) //in A/cm^2 +J=Js*(exp(V/Const)-1) //Total current density in A/cm^2 +sigma=e*myu_n*Nd //in mho/cm +E=J/sigma + +mprintf("Electric field value= %1.2f V/cm",E) //The answer provided in the textbook is wrong diff --git a/3636/CH6/EX6.9/Ex6_9.txt b/3636/CH6/EX6.9/Ex6_9.txt new file mode 100644 index 000000000..dca782dbc --- /dev/null +++ b/3636/CH6/EX6.9/Ex6_9.txt @@ -0,0 +1 @@ + Electric field value= 2.07 V/cm \ No newline at end of file -- cgit