(adsbygoogle = window.adsbygoogle || []).push({}); Effective mass and bands in semiconductors

In the study of the basic semiconductor physics devices we usually draw flat bands without taking into account the spacial dependance of them. Now why is it correct? I suppose that the "real band diagram" informations are included into the effective mass term but usually we find on experimental tables only few values. Can someone explain me this?

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Relaxation time approximation

**Physics Forums | Science Articles, Homework Help, Discussion**