1 files changed, 17 insertions, 0 deletions
diff --git a/377/CH9/EX9.2/9_2.sce b/377/CH9/EX9.2/9_2.sce
new file mode 100644
index 000000000..c98653a62
--- /dev/null
+++ b/377/CH9/EX9.2/9_2.sce
@@ -0,0 +1,17 @@
+p1=2*10^16;  ////say p1 is in p-region
+Na=2*10^16;
+ni=10^10;
+n1=ni^2/p1;  //say n1 is in p-region
+printf('\n The value of n in p-region is %f/cm^3',n1);
+n2=9*10^16;  //say n2 is in n-region
+p2=(ni^2)/n2;  //say p2 is in n-region
+printf('\n The value of p in n-region is %f/cm^3',p2);
+a=0.0259;
+pp=2*10^16;
+nn=9*10^16;
+Vbi=a*log(pp*nn/(ni^2));  //say  a=K*T/q at room temp. i.e., 300k
+printf('\n The value of Vbi,built-in-potential at 300K is %fV',Vbi);
+b=0.0345;  //say b=K*T/q at 400k
+ni1=4.52*10^12;  //say ni at 400K=ni1
+Vbi1=b*log(pp*nn/(ni1^2));  //say Vbi1 is built in potential at 400K
+printf('\n The value of Vbi,built-in-potential at 400K is %fV',Vbi1);
+\ No newline at end of file