radiative recombination

Definition

During the finite time while the electron (negative charge) is moving forward towards the p-n junction, it may meet a slowly moving hole (positive charge) left behind by a previous photoexcitation. When this occurs, the electron recombines at that atom, and the energy is lost (normally through the emission of a photon of that energy, but there are a variety of possible processes).

Narrower terms

reabsorption