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Photophysics of composite solid films based on 9,10-diphenylanthracene (DPA) doped with Pt(II)octaethylporphyrin (PtOEP) has been investigated by means of transient absorption and luminescence spectroscopy. The DPA:PtOEP host:guest system is a benchmark for incoherent energy up-conversion via triplet fusion in solution and we focus here on photophysical processes of this system in solid films. The...
Absorption and fluorescence spectroscopy including ultrafast transient absorption spectroscopy together with quantum chemistry calculations were applied to reveal properties of multicomponential carbazole–fluorene–benzothiadiazole compounds in the ground and excited states. Despite different structures of compounds possessing benzothiadiazole units, all of them display very similar spectroscopic properties...
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