Skip to main content

All Questions

0 votes
1 answer
59 views

Can a DC voltage excite a pure semiconductor (or insulator) from the valence band to the conduction band?

I have a question I am sticking around and can't find a satisfying answer. Say I have an intrinsic semidonductor at zero Kelvin (no electrons in conduction band). I apply a DC voltage across it. Can ...
MLSPhy's user avatar
  • 21
2 votes
2 answers
23k views

Why in a conductor increase in temperature makes the atoms vibrate but in a semiconductor the kinetic energy of the free electrons is increased?

When temperature is increased in case of a semiconductor the free electron gets more energy to cross the energy gap to the conduction band from the valence band.so now more electrons can go easily to ...
MD57's user avatar
  • 31
2 votes
1 answer
715 views

How to check the ohmic contact to the film?

I have a thin semiconductor film deposited on an isolating substrate. I would like to check different metals to find out do they form the ohmic contact or Schottky barrier. What is the best way to do ...
user57136's user avatar