| 초록 |
New blue fluorescent compounds containing tetra-substituted ethylene moieties have been designed and synthesized. These materials, BPBAPE, PBAPE, BTBPPA, and BTPPA were synthesized through Suzuki and McMurry reactions. By fabricating multilayered non-doped OLED devices using these new blue materials, we achieved luminance efficiencies of 4.00 lm/W (10.33 cd/A at 8.1 V) for BPBAPE and 1.82 lm/W (3.93 cd/A at 6.8 V) for BTPPA at 10 mA cm2. The BPBAPE and BTPPA devices exhibited sky blue emission (0.195, 0.303) and deep blue emission (0.159, 0.135) at 10 mA/cm2, respectively. |
