Triplet States in Mixed Molecular Crystals

Abstract
Triplet exciton density of states functions were calculated for crystalline naphthalene and benzene, and the off-diagonal matrix elements of the Green's function were obtained for crystalline naphthalene, using theoretical intermolecular electron-exchange terms. These results were then applied for the study of triplet states in doped molecular crystals, using the one-particle Green's function method. The localized impurity, the impurity pair, and the general impurity problem were considered. The experimental implications of these results concerning the absorption and emission spectra and energy-trapping effects in dilute mixed crystals were considered.

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