why is the conductivity of n- type semiconductor greater than that of p- type semiconductor even when both of these have same level of doping ?
Answers
Answer:
In spite of having same level of doping the conductivity of an n-type semiconductor is greater than p-type semiconductor because the charge carrier of a n-type semiconductor is electron which is faster to move than the hole which is the charge carrier of a p-type semiconductor.
Answer:
(1) In a p-type semiconductor, holes are majority charge carriers.
(2) Holes behave as positive charges. When a p-type semiconductor is connected to a battery, holes are attracted towards the negative terminal of the battery.
(3) Holes are transported, when there is movement of electrons.
(4) The drift speed of these electrons in a p-type semiconductor is less than that in an n-type semiconductor. Also the mobility of the holes is less than that of the electrons.
(5) The electrical conductivity depends on the mobility of charge carriers. Hence, the conductivity of an n-type semiconductor is greater than that of a p-type semiconductor even when both of these have the same level of doping.