explain detail about intrinsic concentration?

Question

electrical n electronic engineering,analogue electronics books

Answer 1

see:http://en.wikipedia.org/wiki/Semiconductor#Carrier_concentration

The intrinsic carrier concentration is the amount of free carriers that were thermally excited into the conduction band. Since the product of electronics and holes is the square of the intrinsic carrier concentration, the intrinsic carrier concentration also affects the conductivity of the doped portions of the semiconductor.