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Triplet state properties of [Os(phen)₂(dppene)]²⁺ in different host materials and host to guest energy transfer in PVK

Pentlehner, D. ; Grau, I. ; Yersin, Hartmut


Emission properties of [Os(phen)₂(dppene)]²⁺ were investigated from 1.4 to 300 K in ethanol, PMMA, and PVK, a matrix which is frequently applied in OLEDs. These data provide the zero-field splitting values of the emitting T₁ state and the individual decay times of its substates. The T₁ state is assigned to be largely of MLCT character. The splittings change only moderately due to variation of ...


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