Morphotropic Phase Boundary in Irradiated Ferroelectric Polymers

IF 27.4 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Advanced Materials Pub Date : 2025-06-10 DOI:10.1002/adma.202502099

Yuquan Liu, Hui Tong, Chenyi Li, Wei Qi, Huamin Zhou, Yang Liu

引用次数: 0

Abstract

Morphotropic phase boundary (MPB) enables a large piezoelectric effect in ferroelectric polymers. However, till now MPB has only been observed in a few polymers, which is induced by compositional tuning of the polymer composition. Here a distinct approach to design MPB in ferroelectric polymers is reported via ion irradiation. Without changing composition as required by the conventional compositional approach, the formation of helix/trans MPB in ferroelectric polymers is achieved upon increasing the irradiation dose, near which a substantially enhanced piezoelectric coefficient d₃₃ of -69.8 pC N⁻¹ is observed. The effectiveness of this method is demonstrated by using different sources of irradiation and polymer compositions, which offers a general and scalable postprocessing tool to effectively improve the piezoelectric response of ferroelectric polymers.

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辐照铁电聚合物的相变边界

嗜形相界（MPB）使得铁电聚合物具有较大的压电效应。然而，到目前为止，仅在少数聚合物中观察到MPB，这是由聚合物组成的成分调谐引起的。本文报道了一种通过离子辐照设计铁电聚合物中MPB的独特方法。在不改变传统组成方法所要求的组成的情况下，增加辐照剂量可以实现铁电聚合物中螺旋/反式MPB的形成，在辐照剂量附近，观察到压电系数d33大幅提高至-69.8 pC N−1。采用不同的辐照源和不同的聚合物组成证明了该方法的有效性，为有效提高铁电聚合物的压电响应提供了一种通用的、可扩展的后处理工具。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Advanced Materials 工程技术-材料科学：综合

CiteScore

43.00

自引率

4.10%

发文量

2182

审稿时长

2 months

期刊介绍： Advanced Materials, one of the world's most prestigious journals and the foundation of the Advanced portfolio, is the home of choice for best-in-class materials science for more than 30 years. Following this fast-growing and interdisciplinary field, we are considering and publishing the most important discoveries on any and all materials from materials scientists, chemists, physicists, engineers as well as health and life scientists and bringing you the latest results and trends in modern materials-related research every week.