| 초록 |
In this article, we report the concept of solution-processable, composite materials derived from fluorinated high-k metal oxide nanoparticles and a highly fluorinated polymer binder. Hydroxylated BaTiO3 surface was modified successfully by ligand substitution reactions using a block copolymer composed of semi-perfluorodecyl methacrylate (FDMA) and tert-butyl methacrylate (tBMA). The resulting BaTiO3 particles dispersed well in HFE-7500 and their solution with a random copolymer binder, P(FDMA-r-tBMA), could form decent insulator layers. A metal-insulator-metal diode fabricated with the spin-coated BaTiO3 and fluorinated polymer binder showed that the dielectric constant of the composite films was ca. 20 at 106 Hz. This result suggests that the polymeric fluorous ligand-modified nanoparticles could be useful components for printed electronics applications fabricated with delicate organic electronic materials. |
