Enhanced Ferroelectricity of Nylon 11 Thin Films by Amine-functionalized Graphene Oxide
발표자
원재현 (부산대학교)
연구책임자
정범진 (부산대학교)
공동저자
원재현 (부산대학교), 정범진 (부산대학교)
초록
내용
Ferroelectric materials have attracted interest for nonvolatile memories, sensors, and actuators. Organic ferroelectrics are appealing due to solution processability, flexibility, and compatibility with large-area devices. Nylon 11 is an odd-numbered nylon exhibiting ferroelectricity from dipolar ordering along the polymer backbone. However, strong intermolecular hydrogen bonding stabilizes chains while producing a high coercive field, limiting domain switching. Here, the ferroelectric properties of Nylon 11 are improved by introducing a low concentration of amine-functionalized graphene oxide (AGO) to induce self-assembly and promote ferroelectric crystalline phases. Nylon 11 thin films containing trace AGO were prepared by solution processing and evaluated. AGO incorporation enhanced remnant polarization. These results demonstrate nanofiller-induced self-assembly as an effective strategy to overcome hydrogen-bond-related limitations and improve ferroelectric performance.