A high-κ homogeneous ink for printable electroluminescent devices.

ABSTRACT: Flexible alternating-current electroluminescent (ACEL) devices combine light emission with mechanical flexibility, enabling applications in wearables, soft robotics, and human-machine interfaces. Previous attempts to lower the driving voltage using high-permittivity fillers (e.g., BaTiO₃, liquid metals, ionic liquids) improved dielectric properties, but the inclusion of these heterogeneous fillers often compromised transparency and pattern clarity. Here, we report a printable, transparent high-dielectric ink that addresses these issues. By incorporating small high-dielectric molecules into a polymer matrix and employing screen printing with one-step photopolymerization, we fabricated patterned ACEL devices of high quality. The ink exhibits a dielectric constant up to 25 and transparency up

SUBMITTER: Li T 

PROVIDER: S-EPMC12514212 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature