| 초록 |
We recently developed a novel dual core system for producing highly efficient organic emitters. Triple-core chromophores were prepared by extending a dual core chromophore. The chemical structures of the new triple core chromophores are shown in figure. 1,6-Di-anthracen-9-yl-pyrene (1,6 DAP core), 6,12-di-anthracen-9-yl-chrysene (DAC core), and 2,7-di-anthracen-9-yl-pyrene (2,7 DAP core) were used for the blue fluorescent emitters. A structure of the device was fabricated as ITO / 2-TNATA (60 nm) / NPB (15 nm) / synthesized materials (35 nm) / Alq3 (20 nm) / LiF (1 nm) / Al (200 nm). The device performances of 1,6 DAP core, DAC core, and 2,7 DAP core at 10 mA/cm2 corresponded to luminance efficiencies of 4.97 cd/A, 3.95 cd/A, and 3.50 cd/A, respectively. More device performance data will be discussed. |
