Dielectric, Ferroelectric, and Energy Storage Properties of Solvent Casted P(VDF-TrFE) Film

IF 1.4 4区综合性期刊 Q2 MULTIDISCIPLINARY SCIENCES Iranian Journal of Science and Technology, Transactions A: Science Pub Date : 2024-09-24 DOI:10.1007/s40995-024-01711-y

S. Parthasarathy, S. Behera, Srikanta Moharana

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Abstract

This study investigates the effects of hot-pressing temperatures on the dielectric, ferroelectric, and energy storage properties of solvent-casted Poly (vinylidene fluoride-trifluoroethylene) (PVDF-TrFE) films. The hot-pressing process enhances the crystallinity and alignment of polymer chains, directly affecting their electrical properties. The aim is to optimize the performance of PVDF-TrFE films for potential energy storage devices. X-ray diffraction (XRD) and Fourier transform infrared (FTIR) analysis were used to investigate phase formation and the fraction of β-phase. The presence of the β-fraction inside the copolymer is crucial for multifunctional applications. The scanning electron microscopy (SEM) analysis verified the uniform and glossy surface of the P(VDF-TrFE) film. The dielectric, ferroelectric, and piezoelectric properties were found suitable for energy storage and harvesting applications. The remnant polarisation (Pr) and coercive field (Ec) in the ferroelectric hysteresis loop were affected by β-fraction and crystallinity.

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溶剂浇铸 P（VDF-TrFE）薄膜的介电、铁电和储能特性

本研究探讨了热压温度对溶剂浇铸聚偏氟乙烯-三氟乙烯（PVDF-TrFE）薄膜的介电、铁电和储能特性的影响。热压工艺可提高聚合物链的结晶度和排列，直接影响其电气性能。其目的是优化 PVDF-TrFE 薄膜的性能，使其适用于潜在的储能设备。研究人员利用 X 射线衍射 (XRD) 和傅立叶变换红外 (FTIR) 分析来研究相的形成和 β 相的比例。β相在共聚物中的存在对于多功能应用至关重要。扫描电子显微镜（SEM）分析证实，P(VDF-TrFE) 薄膜表面均匀且富有光泽。其介电、铁电和压电特性适用于能量存储和收集应用。铁电磁滞回线中的残余极化（Pr）和矫顽力场（Ec）受 β 分数和结晶度的影响。

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来源期刊

Iranian Journal of Science and Technology, Transactions A: Science MULTIDISCIPLINARY SCIENCES-

CiteScore

4.00

自引率

5.90%

发文量

122

审稿时长

>12 weeks

期刊介绍： The aim of this journal is to foster the growth of scientific research among Iranian scientists and to provide a medium which brings the fruits of their research to the attention of the world’s scientific community. The journal publishes original research findings – which may be theoretical, experimental or both - reviews, techniques, and comments spanning all subjects in the field of basic sciences, including Physics, Chemistry, Mathematics, Statistics, Biology and Earth Sciences