For
p-type semiconductors, the recombination process will reduce
the number (ni)of intrinsically generated electrons to ne We have, for p-type semiconductors
nh >> ne
(14 4)
Note that the crystal maintains an overall charge neutrality
as the charge of additional charge carriers is just equal and
opposite to that of the ionised cores in the lattice In extrinsic semiconductors, because of the abundance of
majority current carriers, the minority carriers produced
thermally have more chance of meeting majority carriers and
thus getting destroyed