Exciton-Exciton Annihilation Mediated by Many-Body Coulomb and Phonon Interactions: An Ab Initio Study.

Exciton-exciton annihilation, in which two excitons interact to generate high-energy excitations, is an important nonradiative channel in light-induced excited-state relaxation. When efficient, this process offers an alternative route to exciton emis…

Preview only. Read the full abstract at the source