Migration of triplet excitations of complex molecules in disordered media and in systems with a confined geometry

The paper presents the results of analysis of migration of a triplet excitation in inhomogeneous media such as mixed molecular crystals, solid solutions of organic compounds in low-molecular solvents and polymers, as well as porous matrices activated by complex molecules. The experimental data obtained under conditions of steady-state excitation and time resolution are analyzed within different approaches used for describing the energy transport in disordered systems. (C) 2000 MAIK "Nauka/Interperiodica".