Pure red phosphorescent OLED (PhOLED) based on a cyclometalated iridium complex with a dibenzoylmethane (dbm) moiety as the ancillary ligand - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Luminescence Année : 2014

Pure red phosphorescent OLED (PhOLED) based on a cyclometalated iridium complex with a dibenzoylmethane (dbm) moiety as the ancillary ligand

Résumé

A neutral heteroleptic iridium(III) complex bis(1-phenylisoquinoline) (dibenzoylmethane)iridium(III) Ir(piq)2(dbm) bearing a dibenzoylmethane (dbm) moiety as the ancillary ligand has been designed and investigated as an emitter in phosphorescent organic light emitting devices (PhOLEDs). To date, the family of dbm based complexes has only been scarcely investigated in OLEDs and only one complex of this family has been tested in electroluminescent devices. Interestingly, pure red devices were obtained with this emitter. PhOLEDswere fabricated at different dopant concentrations and the best device performances were obtained in the device with 8wt.% dopant concentration. Ir(piq)2(dbm) was characterized by UV-visible absorption and photoluminescence spectroscopy, cyclic voltammetry and theoretical calculations were also performed to support our experimental results.
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Dates et versions

hal-01005550 , version 1 (12-06-2014)

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Frédéric Dumur, Marc Lepeltier, Hossein Zamani Siboni, Pu Xiao, Bernadette Graff, et al.. Pure red phosphorescent OLED (PhOLED) based on a cyclometalated iridium complex with a dibenzoylmethane (dbm) moiety as the ancillary ligand. Journal of Luminescence, 2014, 562, pp.530-537. ⟨10.1016/j.tsf.2014.04.096⟩. ⟨hal-01005550⟩
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