| 초록 |
Hetero dual-core derivatives that combine anthracene and pyrene were systematically studied. Five compounds were designed in order to (1) determine which one of the two core chromophores in a hetero dual-core moiety, (2) control the electron-donating ability of the side group, and (3) change the substitution position. TP-AP-TP, DPA-AP-TP, TP-AP-DPA, TPA-AP-TP, and TP-AP-TPA were synthesized as model compounds. The synthesized materials showed absorption wavelength peaks at 403–410 nm in the film state and exhibited PL emissions of 458–505 nm. Also, anthracene was shown to be the main core contributing to the optical and electronic properties. Among the synthesized molecules, the TPA-AP-TP molecule, in which triphenylamine, with its optimum electron-donating ability, was substituted into anthracene, showed excellent EL performance for OLED lighting with a current efficiency of 8.05 cd/A and EQE of 6.75%. |
