Abstract
In this work, P(VDF-TrFE)-based nanocomposites with high dielectric constant were fabricated by using MXene as a two-dimensional (2-D) filler. The produced nanocomposites were flexible and exhibit a low percolation threshold of 11.96 wt.% while their dielectric constant exceeds 2000 at a frequency of 100 Hz. P(VDF-TrFE)/MXene dielectric nanocomposites with 10 wt.% of 2-D filler exhibit a high dielectric constant of more than 1500 at 100 Hz associated with a dielectric loss of 0.8, which is much smaller than other composites that contain conductive fillers and exhibit a similar dielectric constant. When a very small amount (less than 1.0 wt.%) of MXene filler was used, the energy storage performances of these composites was slightly increased with the filler content due to its participation in polarization at a high electric field. The results indicate that 2-D MXenes are promising candidates for fabrication of high-performance dielectric composites with conductive fillers.
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The data that support that the findings of this study are available from the corresponding author upon reasonable request.
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Acknowledgements
This work was supported by the Open Project of State Key Laboratory of Aerospace Servo Actuation and Transmission (LASAT-20210505), National Key Research and Development Program of China (NO. 2018YFB1308700), and Shanxi Major Science and Technology Projects (NO. 20191102009).
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PZ performed the experiments and wrote the manuscript; JL helped perform the analysis with constructive discussions; RW contributed significantly to analysis and manuscript preparation. All the authors have approved the manuscript that is enclosed.
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Zhang, P., Lai, J. & Wang, R. Flexible Nanocomposites Based on P(VDF-TrFE) Matrix and MXene 2-D Fillers with Low Percolation Threshold and High Dielectric Constant. J. Electron. Mater. 51, 6264–6274 (2022). https://doi.org/10.1007/s11664-022-09811-4
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DOI: https://doi.org/10.1007/s11664-022-09811-4