Author/Authors :
Kim، نويسنده , , Dong-Uk and Paik، نويسنده , , Seoung-Hey and Kim، نويسنده , , Sung-Hoon and Tak، نويسنده , , Yoon-Heung and Kim، نويسنده , , Sang-Dae and Kim، نويسنده , , Ki-Dong and Kim، نويسنده , , Kwanghyun and Ko، نويسنده , , Tae-Ho and Yoon، نويسنده , , Ung-Chan and Han، نويسنده , , Yoon-Soo and Jeong، نويسنده , , Young Chul and Park، نويسنده , , Lee Soon، نويسنده ,
Abstract :
Novel red phosphorescent compound (IR-PIQC-1), iridium complex with two phenyl-isoquinoline ligands and one 2-acetyl-1,3-cyclohexanedione ligand was designed and synthesized. The electroluminescent (EL) characteristics of IR-PIQC-1 in the EL device were evaluated. The thin layers of EL devices were fabricated by the vacuum deposition method, and the layer-structures of the devices were ITO/NPD/IR-PIQC-1 or IR-BTPAC (10%) in CBP/Balq/Alq/LiF/Al. Brightness of the IR-PIQC-1 device was 574 cd/m2 at 11 mA/cm2, and the external quantum efficiency was estimated as 5.28% at the same current density. The EL spectrum of the IR-PIQC-1 device was detected at about 620 nm as the maximum peak with red phosphorescence.
