Flexible ferroelectric polymer devices based on inkjet-printed electrodes from nanosilver ink

Abstract

High-quality silver (Ag) patterns were inkjet-printed with nanosilver ink on a flexible polyethylene terephthalate (PET) substrate. All-solution-processed flexible ferroelectric polymer devices that use inkjet-printed Ag to create their bottom and top electrodes were demonstrated. The active layer, a poly (vinylidene fluoride-trifluoroethylene) (PVDF-TrFE) thin film, was spin-coated from solution. The devices have a remanent polarization of 8.03 μC cm(-2) and a coercive field of 68.5 MV m(-1), which is comparable to the device with evaporated-Ti electrodes on a silicon substrate. Based on the results presented in this paper, mass production of flexible ferroelectric devices is predictable.

Facile fabrication of highly ordered poly(vinylidene fluoride-trifluoroethylene) nanodot arrays for organic ferroelectric memory

“…Ferroelectric polymers, in particular, the polyvinylidene fluoride (PVDF) and its copolymers with trifluoroethylene (TrFE), have received intensive interests due to their useful dielectric, ferroelectric, pyroelectric, and piezoelectric properties. [1][2][3][4][5][6] One of the emerging research topics about ferroelectric P(VDF-TrFE) copolymer is to scale down its size to nanometer dimension, which may offer unique characteristics and extend its applications ranging from nanosensors to non-volatile memory and nanogenerators. [7][8][9] The fabrication of two-dimensional (2D) ferroelectric nanodot arrays is an ideal approach for forming isolated nanodomains.…”