Cationic iridium complex for the design of soft salt-based phosphorescent OLEDs and color-tunable light-emitting electrochemical cells - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Organic Electronics Année : 2011

Cationic iridium complex for the design of soft salt-based phosphorescent OLEDs and color-tunable light-emitting electrochemical cells

Résumé

Phosphorescent Organic Light-Emitting Diodes (PhOLEDs) based on iridium (III) soft salt were designed and studied. Heteroleptic anionic iridium complex (A) was prepared with thiocyanate anions and cationic iridium complex (C) was synthesized with 4,4′-dinonyl-2,2′-byridine as the ancillary ligand. Electronic and spectroscopic properties of the resulting combination of soft salt C*A were investigated by mean of UV-visible absorption, fluorescence spectroscopy and cyclic voltammetry. DFT calculations were also performed and the electroluminescent performances evaluated. Light-emitting electrochemical cells (LECs) displaying color-variable emission were also obtained. This color tunability aroused from a modification of the molecular packing of the emissive layer with the temperature.

Dates et versions

hal-00870017 , version 1 (04-10-2013)

Identifiants

Citer

Frédéric Dumur, Gihane Nasr, Guillaume Wantz, Cédric Mayer, Eddy Dumas, et al.. Cationic iridium complex for the design of soft salt-based phosphorescent OLEDs and color-tunable light-emitting electrochemical cells. Organic Electronics, 2011, 12, pp.1683-1694. ⟨10.1016/j.orgel.2011.06.014⟩. ⟨hal-00870017⟩
128 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More