Quenching of Luminescence of Ruthenium (II) Complexes in a Porous Glass by Molecular Oxygen

摘要

Quenching of luminescence of a number of polypyridine complexes of ruthenium (II) in a porous glass is considered. The revealed features of quenching of luminophors in heterogeneous conditions are explained within the framework of a model analyzing two subsystems of adsorbed luminophors. Different mechanisms of quenching are considered, and a conclusion about dynamic character of quenching of luminophors in a porous glass is made. The models of quenching of adsorbed luminophors analyzing a quenching by oxygen from gaseous phase, as well as an adsorption of quencher on a surface of a porous glass are proposed.