Thursday, January 15, 2015

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

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 μ C 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.



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