| 초록 |
White organic light emitting diode (WOLEs) has been intensively investigated because it can be applied to full color displays and future lighting sources. In order to realize full color OLEDs with high efficiency, it is required that the luminescent molecule has high emission efficiency and the device structure for fabrication process is simple. In this respect, fluorescent molecules featuring excited state intramolecular proton transfer (ESIPT) process are promising candidates for the emitting materials due to its characteristic large Stokes’ shifted emission with no self-absorption. Here, we present a modified white-light-emitting molecule based on a ESIPT molecule and a strong blue fluorophore. Prepared molecule is composed of covalently linked blue- and yellow-light-emitting moieties between which energy transfer is limited, leading to the production of intense white luminescence in solid state. |
