High piezoelectric property with exceptional stability in self-poled ferroelectric films
Ferroelectric films are highly sought-after in micro-electro-mechanical systems, particularly with the trend towards miniaturization. However, their tendency to depolarize and degradation in piezoelectric properties when exposed to packaging procedures at temperatures exceeding 260 °C remains a significant challenge. Here, we reveal the prerequisites for self-poling and leverage these insights to achieve unprecedented macroscopic performance through a two-step approach involving texture construction and hierarchical heterogeneity engineering. The significant [001] texture and fine Zr/Ti heterogeneity, facilitated by a PbO-TiO<sub>2</sub> buffer, enable a piezoelectric charge coefficient of 550 pC/N in self-poled Pb(Zr<sub>0.52</sub>Ti<sub>0.48</sub>)O<sub>3</sub> film. This material demonstrates impressive resilience to elevated temperatures up to 300 °C, experiencing less than a 16% degradation in performance. Our approach can be extended to other ferroelectric systems, offering an innovative solution for high-temperature packaging and harsh environments in practical electro-mechanical applications.
Authors
- Mingmeng Tang
- Jiaojiao Yi (ORCID: https://orcid.org/0000-0002-5178-9692)
- Xuan Gao (ORCID: https://orcid.org/0000-0002-7045-9656)
- Yang Liu
- Zhen Liu (ORCID: https://orcid.org/0000-0003-3103-4011)
- Zhang Zhang (ORCID: https://orcid.org/0000-0001-9425-3065)
- Lisha Liu (ORCID: https://orcid.org/0000-0001-9471-5493)
- Shuhao Wang (ORCID: https://orcid.org/0000-0003-1912-8437)
- Shujun J. Zhang (ORCID: https://orcid.org/0000-0001-6139-6887)
- Jing‐Feng Li (ORCID: https://orcid.org/0000-0002-0185-0512)
- Liang Shu (ORCID: https://orcid.org/0000-0001-6897-1119)
- Kun Xu (ORCID: https://orcid.org/0000-0003-0551-5727)
- Yaojin Wang (ORCID: https://orcid.org/0000-0003-2561-1855)
- Le Dai
Institutions
- University of Wollongong (AU)
- Nanjing University of Science and Technology (CN)
- Jiangsu University of Technology (CN)
- State Key Laboratory of New Ceramics and Fine Processing
- Stanford University (US)
- Tsinghua University (CN)
Publication Details
- Journal
- Nature Communications
- Published
- 2024-12-30
- DOI
- https://doi.org/10.1038/s41467-024-54707-y
- Citations
- 19
- Primary Topic
- Ferroelectric and Piezoelectric Materials
- Type
- article
- Field-Weighted Citation Impact
- 2.23
Funders
- National Natural Science Foundation of China
- Government of Jiangsu Province
- Natural Science Foundation of Jiangsu Province
- Fundamental Research Funds for the Central Universities