Heterojunctions: Some More Illustrations and Properties

Values of Band Gap Discontinuities for Important Systems

Here is a table giving the valence band discontinuity for many systems
System Si/Ge
DEV
[eV]
0,28
System Si/Ge
DEV
[eV]
0,28
Next, some formulas for the direct energy band gap as a function of the composition
System Eg
[eV]
AlxIn1-xP 1.351 + 2.23x
   
   
   
   
   

go to 5.3.1 Ideal Heterojunctions