Cellulose-based magnetoelectric composites

Yan Zong, Tian Zheng, Pedro Martins, S. Lanceros-Mendez, Zhilian Yue and Michael J. Higgins ()
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Yan Zong: University of Wollongong
Tian Zheng: University of Wollongong
Pedro Martins: Universidade do Minho
S. Lanceros-Mendez: Universidade do Minho
Zhilian Yue: University of Wollongong
Michael J. Higgins: University of Wollongong

Nature Communications, 2017, vol. 8, issue 1, 1-8

Abstract: Abstract Since the first magnetoelectric polymer composites were fabricated more than a decade ago, there has been a reluctance to use piezoelectric polymers other than poly(vinylidene fluoride) and its copolymers due to their well-defined piezoelectric mechanism and high piezoelectric coefficients that lead to superior magnetoelectric coefficients of >1 V cm−1 Oe−1. This is the current situation despite the potential for other piezoelectric polymers, such as natural biopolymers, to bring unique, added-value properties and functions to magnetoelectric composite devices. Here we demonstrate a cellulose-based magnetoelectric laminate composite that produces considerable magnetoelectric coefficients of ≈1.5 V cm−1 Oe−1, comprising a Fano resonance that is ubiquitous in the field of physics, such as photonics, though never experimentally observed in magnetoelectric composites. The work successfully demonstrates the concept of exploring new advances in using biopolymers in magnetoelectric composites, particularly cellulose, which is increasingly employed as a renewable, low-cost, easily processable and degradable material.

Date: 2017
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DOI: 10.1038/s41467-017-00034-4

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