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Emission of Ir(ppy)₃ - Temperature dependence, decay dynamics, and magnetic field properties

Finkenzeller, Walter J. ; Yersin, Hartmut


Emission spectra and decay times of fac-Ir(ppy)₃ dissolved in THF were registered for 1.2 K =< T =< 300 K and magnetic fields (at T = 1.5 K) up to B = 10 T. Three emissive triplet substates I, II, and III could be identified and classified as substates of a ³MLCT term of ³(Ir5d-ppyπ*) character. The energy separations and decay times are ΔE(II,I) = 13.5 cm⁻¹, ΔE(III,I) = 83 cm⁻¹ and τ(I) = 145 ...


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