Abstract
The unprecedented attributes such as biocompatibility and flexibility of macromolecular piezoelectric polymer has triggered an immense interested in scientific society for their potential exploitation in implantable electronic devices. In the present article, a theoretical and experimental investigation is done to explore the polarization behavior of composite fibers based on copolymer poly-trifluoroethylene P(VDF-TrFE) and graphene oxide (GO) with varying composition of the components is explored for its possible application in bioelectronic devices. Electromechanical properties of the PVDF/GO nanofibers were investigated using piezoresponse force microscopy (PFM) method. The switching behavior, charge states, and piezoelectric response of the fibers were found to depend on the concentration of GO up to 20%. Theoretical models of PVDF chains, interacting with Graphene/GO layers has been used to explore the evolution of piezoresponse in the composite fibers. In order to compute piezoelectric coefficients, the behavior of composite in electrical fields has been modeled using software HyperChem. The experimental results are qualitatively correlated with a computed theoretical model.
Highlights
In recent years, polymer nanocomposites fiber microstructures have received great attention due to improved physical properties, such as higher mechanical stability, improved thermal properties, non-toxicity, and more possibilities of modification than the original polymer matrix
The main objective of the study is focused on the synthesis of nanocomposite fiber materials based on polymer polyvinylidene fluoride and its copolymers with graphene oxide using atomic/piezo force microscopy
(20% graphene oxide (GO)) we can observe the peaks from Al, P(VDF-TrFE) and GO phases
Summary
Polymer nanocomposites fiber microstructures have received great attention due to improved physical properties, such as higher mechanical stability, improved thermal properties, non-toxicity, and more possibilities of modification than the original polymer matrix This allows the use of these composites in various commercial applications, such as biomedical materials [1], gas filtration membranes [2], water harvesting [3,4,5], catalytic membrane [6], polymer electrolytes [7,8,9], and energy harvesting [10,11,12,13]. The main objective of the study is focused on the synthesis of nanocomposite fiber materials based on polymer polyvinylidene fluoride and its copolymers with graphene oxide using atomic/piezo force microscopy
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