独立混合电活性聚合物薄膜的微波、铁电和机电研究

IF 5.3 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Research Bulletin Pub Date : 2024-09-25 DOI:10.1016/j.materresbull.2024.113105

P. Nikhil Mohan , C. Thirmal , Andrews Joseph , B. Arun , Karmegam Shanmuga Priya , Pattukkannu Murugavel , K.C. James Raju

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引用次数: 0

摘要

本研究探讨了如何增强由 P(VDF-TrFE)和 Nafion 制成的电活性聚合物（EAP）共混膜的微波、铁电和机电特性。混合薄膜采用溶液浇铸法合成，Nafion 的体积百分比各不相同（0% 至 30%），并利用 XRD 和傅立叶变换红外光谱确认了相的形成。使用 FESEM 对其形态特征进行了研究。使用 VNA 研究了混合薄膜在 X 和 Ku 波段的反射损耗与厚度的函数关系。此外，还探讨了反射和吸收对屏蔽效果的影响。10 % 的 Nafion 成分能有效地将微波反射降到最低。P-E 滞后研究表明，混合薄膜在参数方面表现出很高的性能。含有 10% Nafion 的薄膜的机电耦合系数有所提高。这些研究结果表明，混合薄膜在柔性压电传感器、电容器、存储器和微波器件方面具有潜在的应用前景。

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Microwave, ferroelectric and electromechanical studies of free standing blended electroactive polymer films

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Microwave, ferroelectric and electromechanical studies of free standing blended electroactive polymer films

This study probes the enhancement of the microwave, ferroelectric and electromechanical properties of electroactive polymer (EAP) blended films made out of P(VDF-TrFE) and Nafion. Blended films are synthesized using the solution casting method, with different Nafion volume percentage (0 % to 30 %), and the phase formation is confirmed using XRD and FTIR spectroscopy. The morphological features are studied using FESEM. The reflection loss of the blended films as a function of thickness has been studied in both X and Ku band using a VNA. The contribution of reflection and absorption to the shielding effectiveness are also explored. 10 % Nafion inclusion effectively minimizes microwave reflection. The P-E hysteresis study reveals that the blended films exhibit high performance in terms of the parameters. The electromechanical coupling factor has been enhanced for 10 % Nafion inclusion. These findings suggest that the blended films have potential applications in flexible piezoelectric sensors, capacitors, memory, and microwave devices.

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来源期刊

Materials Research Bulletin 工程技术-材料科学：综合

CiteScore

9.80

自引率

5.60%

发文量

372

审稿时长

42 days

期刊介绍： Materials Research Bulletin is an international journal reporting high-impact research on processing-structure-property relationships in functional materials and nanomaterials with interesting electronic, magnetic, optical, thermal, mechanical or catalytic properties. Papers purely on thermodynamics or theoretical calculations (e.g., density functional theory) do not fall within the scope of the journal unless they also demonstrate a clear link to physical properties. Topics covered include functional materials (e.g., dielectrics, pyroelectrics, piezoelectrics, ferroelectrics, relaxors, thermoelectrics, etc.); electrochemistry and solid-state ionics (e.g., photovoltaics, batteries, sensors, and fuel cells); nanomaterials, graphene, and nanocomposites; luminescence and photocatalysis; crystal-structure and defect-structure analysis; novel electronics; non-crystalline solids; flexible electronics; protein-material interactions; and polymeric ion-exchange membranes.