| 초록 |
The high dielectric constant (k) and excellent insulating performance together with the thickness down-scalability are essential requirements for polymer dielectrics to realize the stable operation of flexible, low-power electronics. In this study, we synthesized a series of copolymer dielectrics composed of two monomers of 1,4-butanediol divinyl ether (BDDVE), a cross-linker with relatively short chain length and 2-cyanoethyl acrylate (CEA) possessing a highly polar cyanide functional group. The chemical composition of the 30 nm-thick copolymer dielectrics was optimized to achieve extremely low leakage current with high dielectric constant (k ~ 7.5). High-performance, low-power organic thin-film transistors (OTFTs) with high operational stability and extreme mechanical flexibility were fabricated by exploiting the copolymer dielectric layers with optimized condition. |
