Question

What type of semiconductor is formed when ge is doped with al?

Answer 1

when ge is doped with Al ,we will get a p- type semiconductor.
generally when 14th group elements doped with 13 the group elements it's leads to form a p type semiconductor.

and in this type of semiconductor majority charge carriers are holes and minority charge carriers are electrons.

Answer 2

Hey !!

Question = What type of semiconductor is formed when Ge is doped with Al?

Answer = P - type semiconductor is formed when Ge is doped with Al.