Is there some material which does have good electron conductivity and hole conductivity as well, but in the same time electron-hole recombination have to be prevented by some physical effect, for examply by a large band gap between conduction and valence bands? So, it does suppose to have a plenty of electrons in conduction band and plenty of holes in valence band, but a large band gap in betweeen?

Edited March 17, 20178 yr by Moreno

The best is probably something like InSb but the band gap isn't very great.

 

I'd suggest reading about different types of semiconductor and semimetals.

The best is probably something like InSb but the band gap isn't very great.

 

I'd suggest reading about different types of semiconductor and semimetals.

 

Do you think InSb electronic band structure resembles a pie? What is specific about it?

I don't see anything special with the band structure of InSb:

http://www.ioffe.ru/SVA/NSM/Semicond/InSb/bandstr.html

or did I miss something?

 

Double post alas. See my answer in the other thread.

 

A large band gap does not prevent recombination.

If band structure is inverted like in HgTe, can recombination happen in principle?