Author/Authors :
Dumur، نويسنده , , Frédéric and Bertin، نويسنده , , Denis and Mayer، نويسنده , , Cédric R. and Guerlin، نويسنده , , Audrey and Wantz، نويسنده , , Guillaume and Nasr، نويسنده , , Gihane and Dumas، نويسنده , , Eddy and Miomandre، نويسنده , , Fabien and Clavier، نويسنده , , Gilles and Gigmes، نويسنده , , Didier، نويسنده ,
Abstract :
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.
Keywords :
Host–guest strategy , Light-emitting electrochemical cells , Iridium complex , Organic light emitting diode , Color tunability
