| 초록 |
Synchronizing ferroelectric and luminescent properties in a molecule could feature multiple functions that can adapt to a various external stimulii in a single device. Here we report new, ferroelectric luminescent molecules containing a central organic fluorophore carrying clipable side chains (C). The clips were a polar group or a long alkyl chain with mesogenic units, to induce self-assembly and gelation of the fluorophores. All the clipped fluorophores showed weak blue to green luminescence in solution, however, afforded high emission at thin film state. The emission was stronger with a larger number of C groups. The self-assembled arrangement of the clipped fluorophores generated local macrodipole moment by the application of an external electric field, resulting in ferroelectric polarization-electric field (PE) hysteresis at low voltage. Optimization of PE hysteresis against luminescent structures through C groups will be discussed. |
