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Advances in lead-free pyroelectric materials: a comprehensive review

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Abstract

Pyroelectric materials are important functional materials that can generate an electrical response upon a temperature change. Among the many different types of pyroelectric materials, lead-based materials are the most widely-used traditional pyroelectric material and they will soon be banned due to their high toxicity. Therefore, in the past decade, extensive studies have been conducted to search for high performance lead-free pyroelectric materials. Recent experimental efforts have led to significant advances in lead-free pyroelectrics in different forms. This has further motivated their application from a traditional sensing function to a future energy-related prospect. This article provides a comprehensive review on the up-to-date advances in lead-free pyroelectrics, including single crystals, ceramics, inorganic films, polymers and composites. Moreover, the recent rise in energy harvesting and the electrocaloric effect as well as the potential future development of pyroelectric applications will be presented.

Graphical abstract: Advances in lead-free pyroelectric materials: a comprehensive review

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Publication details

The article was received on 23 Sep 2019, accepted on 08 Nov 2019 and first published on 11 Nov 2019


Article type: Review Article
DOI: 10.1039/C9TC05222D
J. Mater. Chem. C, 2019, Advance Article

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    Advances in lead-free pyroelectric materials: a comprehensive review

    H. He, X. Lu, E. Hanc, C. Chen, H. Zhang and L. Lu, J. Mater. Chem. C, 2019, Advance Article , DOI: 10.1039/C9TC05222D

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