2023
DOI: 10.1002/adem.202300203
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Tunable Negative Permittivity in Graphene/Poly(Vinylidene Fluoride) Composites with Low Percolation Threshold

Abstract: Meta‐materials with fascinating dielectric behavior have drawn much attentions for their potential applications recently. Herein, percolating GR/PVDF composites consisting of GR sheets homogeneously dispersed in PVDF matrix are fabricated via hot‐pressing method in 20 Hz‐1 MHz frequency regions, of which simultaneously realizing negative permittivity with low percolation threshold. It’s demonstrated that negative permittivity of GR/PVDF composites are resulted from the low‐frequency plasma oscillation of free … Show more

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