Question

In a p type semiconductor the acceptor level is 60mev above the valence band themaximum wave length of light

Answer 1

Explanation:

To create a hole an electron must be given energy at least equal to 57 mev to go into acceptor level.

hcλ≥57mev

λ≥hL57mev

=1242evnm57×10−3ev

=2.18×10−5m