AgBr photophysics from optical studies of quantum confined crystals

Abstract

Luminescence spectroscopy of nanocrystals (${10}^4$ times as intense as exciton emission from a macroscopic crystal. Symmetry relaxation, carrier confinement, and impurity exclusion explain this increase in exciton emission. Doping experiments confirm the assignment of one set of exciton lines (${\mathit{BX}}_8$) as recombination emission from an exciton bound to an ionized donor.