Nanoarchitectonic design of PVDF-Fe2O3 thick films: unveiling magnetic and electrical properties of functionalized nanocomposite

IF 3.9 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Science and Engineering: B Pub Date : 2025-06-24 DOI:10.1016/j.mseb.2025.118547

P. Kour , S.K. Pradhan , Jyotirekha Mallick , L.K. Pradhan , Sunil Kumar , Pawan Kumar , Piyali Biswas , Anant Shukla , Amar Dev , Manoranjan Kar

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引用次数: 0

Abstract

The current study delves into the influence of nanofiller content composed of nanocrystalline Fe₂O₃ on various aspects of polyvinylidene fluoride (PVDF) nanocomposite, encompassing crystal structure, dielectric characteristics, magnetic attributes, and ferroelectric properties. Structural examination underscores the augmentation of the polar β phase as the nanofiller (Fe₂O₃) content rises, particularly up to 6 wt% in the nanocomposite thick film. As the concentration of nanofillers increases, there is a corresponding escalation in dielectric permittivity. This effect reaches its peak in the nanocomposite thick film containing 6 wt% of nanocrystalline Fe₂O₃ filler. The same composition exhibits a distinctive M−H curve, showcasing maximum saturation in comparison to other compositions. Furthermore, the highest magnetic storage energy, electric storage density, and anisotropy constant are observed in this particular composition. This work presents a multifunctional composite integrating ferroelectric and magnetic properties, ideal for compact, flexible, and portable electronics amid rising demand for integrated systems.

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PVDF-Fe2O3厚膜的纳米结构设计：揭示功能化纳米复合材料的磁性和电学性能

本研究深入研究了纳米晶Fe2O3组成的纳米填料含量对聚偏氟乙烯（PVDF）纳米复合材料晶体结构、介电特性、磁性和铁电性能等各方面的影响。结构检查强调极性β相随着纳米填料（Fe2O3）含量的增加而增加，特别是在纳米复合材料厚膜中高达6 wt%。随着纳米填料浓度的增加，介质介电常数也相应增大。这种效应在含6 wt%纳米晶Fe2O3填料的纳米复合厚膜中达到顶峰。相同的组合物呈现出独特的M - H曲线，与其他组合物相比，显示出最大的饱和度。此外，在这种特殊的组合物中观察到最高的磁存储能量、电存储密度和各向异性常数。这项工作提出了一种集铁电和磁性于一体的多功能复合材料，在集成系统需求不断增长的情况下，是紧凑、灵活和便携式电子产品的理想选择。

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来源期刊

Materials Science and Engineering: B 工程技术-材料科学：综合

CiteScore

5.60

自引率

2.80%

发文量

481

审稿时长

3.5 months

期刊介绍： The journal provides an international medium for the publication of theoretical and experimental studies and reviews related to the electronic, electrochemical, ionic, magnetic, optical, and biosensing properties of solid state materials in bulk, thin film and particulate forms. Papers dealing with synthesis, processing, characterization, structure, physical properties and computational aspects of nano-crystalline, crystalline, amorphous and glassy forms of ceramics, semiconductors, layered insertion compounds, low-dimensional compounds and systems, fast-ion conductors, polymers and dielectrics are viewed as suitable for publication. Articles focused on nano-structured aspects of these advanced solid-state materials will also be considered suitable.