Proceedings of nanoGe Fall Meeting 2021 (NFM21)
DOI: https://doi.org/10.29363/nanoge.nfm.2021.136
Publication date: 23rd September 2021
Printed electronics has opened up plethora of new opportunities towards low-cost and fast fabrication of flexible electronic components. So far, variety of printing techniques have been used to create different passive electronic components, among which inkjet technique demonstrates promising features like computer-controlled pattern reproduction and high resolution print. Recently, printing of piezoelectric materials has gained interest in both academic and industrial area to fabricate variety of components like sensors, actuators, transducers, and energy harvesting devices. Polyvinylidene difluoride (PVDF) and its copolymers like PVDF-TrFE are a class of piezomatrials that feature both flexibility and good piezoelectric performance. These polymers have semicrystalline nature, which means they are consist of small crystalline domains surrounded by amorphous matrix. PVDF based polymers can crystallize at five different crystalline phases, namely α, β, γ, δ, and ε; however, ferro-, piezo-, and pyroelectric properties of theses polymers only originate from polar phases of β and γ[1]. In this study we investigate how graphene oxide (GO) can increase polar crystalline content of PVDF – TrFE and its influence on piezoelectric, ferroelectric, and dielectric properties. After optimizaton of electronic properties, inkjet printable ink was fabricated from PVDF-TrFE and GO.
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