Question

what is carrier recombination?​

Answer 1

Answer:

Carrier generation describes processes by which electrons gain energy and move from the valence band to the conduction band, producing two mobile carriers; while recombination describes processes by which a conduction band electron loses energy and re-occupies the energy state of an electron hole in the valence band.

Answer 2

$\large\underline\mathfrak\red{Answer}$

Carrier generation describes processes by which electrons gain energy and move from the valence band to the conduction band, producing two mobile carriers.