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Design of blue or yellow emitting devices controlled by the deposition process of a cationic iridium (III) complex

F. Dumur, D. Bertin, C. R. Mayer, A. Guerlin, G. Wantz, G. Nasr, E. Dumas, F. Miomandre, G. Clavier and D. Gigmes Synth. Met., 2011, 161, 1934

A phosphorescent cyclometalated heteroleptic Ir(III) complex was investigated as emitter for light-emitting electrochemical cells (LECs) and polymer organic light-emitting diodes (POLEDs). By exploring the deposition conditions of the emissive layer in multilayered electroluminescent devices, we directly impacted the emission color by mixing or not the complex with poly(vinylcarbazole) (PVK). Strategy of emission color tuning enabled to produce blue or yellow emitting devices. Heteroleptic complex was characterized by UV–visible absorption and luminescence spectroscopy. Cyclic voltammetry and DFT calculations were also performed.

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Publication

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Paru le 26 juillet 2011

Informations complémentaires :

doi 10.1016/j.synthmet.2011.06.038