Triplet States in Mixed Molecular Crystals

摘要

Triplet exciton density of states functions were calculated for crystalline naphthalene and benzene, and the offhyphen;diagonal matrix elements of the Green's function were obtained for crystalline naphthalene, using theoretical intermolecular electronhyphen;exchange terms. These results were then applied for the study of triplet states in doped molecular crystals, using the onehyphen;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 energyhyphen;trapping effects in dilute mixed crystals were considered.