| 초록 |
[TAT] and a new anthracene derivative of [T-TAT] by introduced t-butyl group were synthesized. OLED devices of TAT and T-TAT were fabricated by solution process. Two materials indicated typical absorption peaks of anthracene in the range of 350 nm and 400 nm. The PL wavelengths were 436 nm (TAT) and 439 nm (T-TAT), respectively. The OLED device structure applied to the solution process was as follows: ITO/PEDOT: PSS (40 nm)/PVK (15 nm)/synthesized materials (45 nm)/TPBi (20 nm)/LiF (1 nm)/Al (200 nm). The luminance efficiency of the synthesized materials at 20 mA/cm2 were measured 0.59 cd/A for TAT and 0.84 cd/A for T-TAT, respectively. In case of the CIE values, TAT and T-TAT exhibited (0.150, 0.097) and (0.147, 0.097). As a result, more improved efficiency was shown with the device in a material including t-butyl group to TAT core part, when the devices were prepared by solution process. |
