초록 |
We designed and synthesized a red phosphorescent iridium(III) complex, (BTMN)2Ir(acac), for solution-processed single-emissive-layer organic light-emitting diodes (OLEDs), which contains 2-(4-methoxynaphthalen-1-yl)benzo[d]thiazole (BTMN) as the main ligand and acetylacetone (acac) as the ancillary ligand. The photophysical, electrochemical, and electroluminescent (EL) properties of (BTMN)2Ir(acac) were investigated. Solution-processed single-emissive-layer red OLEDs were fabricated using (BTMN)2Ir(acac) doped in poly(9-vinylcarbazole) (PVK) as the emitting layer. The EL spectra of (BTMN)2Ir(acac) exhibited a maximum emission peak at 598 nm with a full-width at half-maximum (FWHM) of 75 nm and Commission Internationale de L’Eclairage (CIE) coordinates of (0.59, 0.37) at 1000 cd·m-2. |