Author/Authors :
Uk Kim، نويسنده , , Sung-Dong and Paik، نويسنده , , Seoung-Hey and Kim، نويسنده , , Sung-Hoon and Tak، نويسنده , , Yoon-Heung and Han، نويسنده , , Yoon Soo and Kim، نويسنده , , Sang-Dae and Kim، نويسنده , , Ki-Bum and Ju، نويسنده , , Hui-jin and Kim، نويسنده , , Tae-Jeong، نويسنده ,
Abstract :
Novel red electroluminescent (EL) materials, IAP-1 and IAP-2, were designed and synthesized for an emission layer in EL devices. Three types of devices with IAP-1, IAP-2 and DCJTB as dopants of emission layers were fabricated, where DCJTB was adopted as a red dopant for reference. The structures of three devices were ITO/CuPc/TPD/0.5% IAP-1 in Alq3/Alq3/Li2O/Al as an IAP-1 device, ITO/CuPc/TPD/0.5% IAP-2 in Alq3/Alq3/Li2O/Al as an IAP-2 device and ITO/CuPc/TPD/0.5% DCJTB in Alq3/Alq3/Li2O/Al as a DCJTB device. The IAP-1 and IAP-2 devices showed about two times higher quantum efficiency than the DCJTB device. The EL spectra of the IAP-1 and IAP-2 devices had the maximum peak intensities at 635 and 615 nm, respectively.
