| 초록 |
Light-emitting electrochemical cells (LECs) [1] are considered as one of the simplest kinds of electroluminescent devices and a potential replacement for organic light-emitting diodes (OLEDs). Green-emitting Donor–Acceptor type two ionic emitters were designed and synthesized. The potential of diphenyl triazine as an acceptor was used here to produce excellent green emitters by coupling with two derivatives of imidazole donors. The phenanthroimidazole and diphenylimidazole moieties are notable materials with many attractive features such as conductivity, luminescence, and ability to form donor–acceptor systems. These emitters showed excellent solubility, high luminescence in solution and solid state, high thermal stability, and good film-forming abilities. Bright green emissions with Commission Internationale de I’Eclairage coordinates of (0.28, 0.54) and (0.27, 0.52), were achieved by applying these emitters in a light-emitting electrochemical cell (LEC) device stack. |
