Hu, Yuzhong ORCID: 0000-0001-5951-1938, Parida, Kaushik
ORCID: 0000-0001-8057-2102, Zhang, Hao, Wang, Xin, Li, Yongxin
ORCID: 0000-0002-7860-3237, Zhou, Xinran, Morris, Samuel Alexander, Liew, Weng Heng, Wang, Haomin, Li, Tao et al (show 9 more authors)
(2022)
Bond engineering of molecular ferroelectrics renders soft and high-performance piezoelectric energy harvesting materials.
Nature communications, 13 (1).
5607-.
ISSN 2041-1723, 2041-1723
PDF
Bond engineering of molecular ferroelectrics renders soft and high-performance piezoelectric energy harvesting materials.pdf - Open Access published version Download (1MB) | Preview |
Abstract
Piezoelectric materials convert mechanical stress to electrical energy and thus are widely used in energy harvesting and wearable devices. However, in the piezoelectric family, there are two pairs of properties that improving one of them will generally compromises the other, which limits their applications. The first pair is piezoelectric strain and voltage constant, and the second is piezoelectric performance and mechanical softness. Here, we report a molecular bond weakening strategy to mitigate these issues in organic-inorganic hybrid piezoelectrics. By introduction of large-size halide elements, the metal-halide bonds can be effectively weakened, leading to a softening effect on bond strength and reduction in polarization switching barrier. The obtained solid solution C<sub>6</sub>H<sub>5</sub>N(CH<sub>3</sub>)<sub>3</sub>CdBr<sub>2</sub>Cl<sub>0.75</sub>I<sub>0.25</sub> exhibits excellent piezoelectric constants (d<sub>33</sub> = 367 pm/V, g<sub>33</sub> = 3595 × 10<sup>-3</sup> Vm/N), energy harvesting property (power density is 11 W/m<sup>2</sup>), and superior mechanical softness (0.8 GPa), promising this hybrid as high-performance soft piezoelectrics.
Item Type: | Article |
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Uncontrolled Keywords: | 3403 Macromolecular and Materials Chemistry, 34 Chemical Sciences, 3406 Physical Chemistry, 40 Engineering, 4016 Materials Engineering, Bioengineering, 7 Affordable and Clean Energy |
Divisions: | Faculty of Health and Life Sciences Faculty of Health and Life Sciences > Institute of Life Courses and Medical Sciences |
Depositing User: | Symplectic Admin |
Date Deposited: | 26 Sep 2023 14:31 |
Last Modified: | 06 Dec 2024 18:17 |
DOI: | 10.1038/s41467-022-33325-6 |
Related URLs: | |
URI: | https://livrepository.liverpool.ac.uk/id/eprint/3173082 |