The Polymer Society of Korea

분자전자 부문위원회

포스터발표

Cross-linked Polyimide Gate Dielectric through Thermal Click Chemistry for Low Temperature Processable Organic Thin Film Transistor

임채영 (경성대학교)

안 택 (경성대학교)

임채영 (경성대학교), 안 택 (경성대학교)

Organic thin film transistor (OTFTs) for flexible devices require low temperature processing. We report a new cross-linker, 1,3,5-tris(2-propynyloxy)benzene (TYB), which can be cross-linkable at very low temperature 100°C. Firstly, azide functionalized soluble polyimide is synthesized, and then cross-linking occurs through azide-alkyne cycloaddition reaction with a 1,3,5-tris(2-propynyloxy)benzene (TYB) cross-linker. The matal-insulator-metal (MIM) devices show that they show good leakage current density (3.09x10^-8A/cm² at 1 MV/cm) and dielectric constant (3.42) even when cross-linked at very low temperature. Also, it shows good mobility (0.404 cm²/Vs) and on/off ratio (1.25x10⁵) through the pentacene TFT. Detailed polyimide synthesis method and film fabrication condition will be presented.

3PS-042

2026-04-10  08:30 - 10:00