Wettability of organic ferroelectric material on metal substrate

Ferroelectric materials, Poly(vinylidene fluoride-co-trifluoroethylene) (P(VDF-TrFE)), has been widely adopted for the fabrication of devices. The performance of device could be adversely affected by presence of defects. At high humidity environment, pores were typically observed on spin-coated P(VDF-TrFE) thin film, when the film thickness was at sub-micrometer scale. The mechanism of pore formation could be explained by the presence of moisture layer on gold substrate, or “breath figure” effect. In this research, the two mechanisms were studied through molecular dynamics simulations.