| 초록 |
Green-orange emitters based on anthracene core have successfully been synthesized by substitution with triphenylamine side group in the 9,10 or 2,6 positions. There are larger blue shifts in the UV-visible absorption and PL spectra of the synthesized 2,6-substituted derivative compared to 9,10-substituted derivative. When the synthesized compounds were used as emitting layers in non-doped OLED devices, a related trend was observed in their optical properties. In particular, OLED device containing 2,6-substituted derivative was found to exhibit excellent characteristics, with maximum EL emission at 518nm, pure green emission with CIE coordinates (0.334, 0.604), and an external quantum efficiency of 2.83%. |
