Advances in wearable flexible piezoelectric energy harvesters : materials, structures and fabrication

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Shi, Xiaoquan and Sun, Yazhou and Li, Dekai and Liu, Haitao and Xie, Wenkun and Luo, Xichun (2023) Advances in wearable flexible piezoelectric energy harvesters : materials, structures and fabrication. Journal of Materials Science: Materials in Electronics, 34. 220. ISSN 0957-4522 (https://doi.org/10.1007/s10854-022-09536-4)

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Abstract

Flexible energy harvesters have become a research hotspot in both academia and industry because of their great advantages in powering wearable electronic devices. The flexible energy harvesters based on piezoelectric materials are recognized as a competitive method because of their sensitivity to mechanical deformation, excellent energy conversion performance, mature production technology and simple structure. This paper presents a comprehensive review to illustrate the research progress and future development of wearable flexible piezoelectric harvesters. In this work, the widely-used piezoelectric materials for flexible energy harvesters, including inorganic piezoelectric materials, organic piezoelectric materials and piezoelectric composites, are first summarized. The research progress on the influence of ceramic content, morphology, distribution, surface chemical modification, and the addition of conductive materials on the properties of piezoelectric composites are systematically discussed. Additionally, this paper also presents novel structures and fabrication methods of flexible piezoelectric energy harvesters. Finally, future trends in research, development and innovation of flexible piezoelectric energy harvesters are outlined and prospected.

ORCID iDs

Shi, Xiaoquan, Sun, Yazhou, Li, Dekai, Liu, Haitao, Xie, Wenkun ORCID logoORCID: https://orcid.org/0000-0002-5305-7356 and Luo, Xichun ORCID logoORCID: https://orcid.org/0000-0002-5024-7058;
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