通过精确的轻微交联形成的本征弹性聚合物铁电体。

Intrinsically elastic polymer ferroelectric by precise slight cross-linking.

作者信息

Gao Liang, Hu Ben-Lin, Wang Linping, Cao Jinwei, He Ri, Zhang Fengyuan, Wang Zhiming, Xue Wuhong, Yang Huali, Li Run-Wei

机构信息

CAS Key Laboratory of Magnetic Materials and Devices, and Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China.

Nano Science and Technology Institute, University of Science and Technology of China, Suzhou 215123, China.

出版信息

Science. 2023 Aug 4;381(6657):540-544. doi: 10.1126/science.adh2509. Epub 2023 Aug 3.

DOI:10.1126/science.adh2509

PMID:37535722

Abstract

Ferroelectrics are an integral component of the modern world and are of importance in electrics, electronics, and biomedicine. However, their usage in emerging wearable electronics is limited by inelastic deformation. We developed intrinsically elastic ferroelectrics by combining ferroelectric response and elastic resilience into one material by slight cross-linking of plastic ferroelectric polymers. The precise slight cross-linking can realize the complex balance between crystallinity and resilience. Thus, we obtained an elastic ferroelectric with a stable ferroelectric response under mechanical deformation up to 70% strain. This elastic ferroelectric exerts potentials in applications related to wearable electronics, such as elastic ferroelectric sensors, information storage, and energy transduction.

摘要

铁电体是现代世界不可或缺的组成部分，在电气、电子和生物医学领域都具有重要意义。然而，它们在新兴可穿戴电子产品中的应用受到非弹性变形的限制。我们通过对塑料铁电聚合物进行轻微交联，将铁电响应和弹性恢复力结合到一种材料中，开发出了本征弹性铁电体。精确的轻微交联能够实现结晶度和恢复力之间的复杂平衡。因此，我们获得了一种弹性铁电体，在高达70%应变的机械变形下仍具有稳定的铁电响应。这种弹性铁电体在与可穿戴电子产品相关的应用中具有潜力，如弹性铁电传感器、信息存储和能量转换。