Broad-Temperature Electrocaloric Effect in Multilayered Ferroelectric Polymer Nanocomposites
While the electrocaloric effect (ECE) presents a promising approach for solid-state thermal management in integrated circuits, the development of ferroelectric materials exhibiting high ECE at elevated temperatures remains a significant bottleneck. Herein, we report multilayered ferroelectric polymer composites that demonstrate a giant ECE across a broad temperature range. By strategically tailoring the electric field distribution and optimizing polarization behavior through the controlled dispersion of ferroelectric ceramic nanofillers in the polymer matrix, as supported by phase-field modeling, the composites show a large adiabatic temperature change (Δ<i>T</i>) of 25.3 K and a high entropy change (Δ<i>S</i>) of 0.25 J cm<sup>-3</sup> K<sup>-1</sup> at room temperature. To further suppress electrical conduction, [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) was introduced into the polymer layers. The multilayered ferroelectric nanocomposites achieve Δ<i>T</i> and Δ<i>S</i> values exceeding 20 K and 0.18 J cm<sup>-3</sup> K<sup>-1</sup>, respectively, over a temperature range of 0-80 °C. This work offers a promising design strategy for developing high-performance electrocaloric materials for thermal management in advanced microelectronic systems.
Authors
- Kanghua Li (ORCID: https://orcid.org/0000-0002-2953-5936)
- Rujun Ma (ORCID: https://orcid.org/0000-0001-7892-5212)
- Fangyuan Luo
- Houbing Huang (ORCID: https://orcid.org/0000-0002-8006-3495)
- Guangzu Zhang (ORCID: https://orcid.org/0000-0003-0659-4527)
- Shenglin Jiang (ORCID: https://orcid.org/0000-0002-6500-7364)
- Feifan Yang
- Huan Liu (ORCID: https://orcid.org/0000-0002-4222-2299)
- Qi Li (ORCID: https://orcid.org/0000-0002-8282-4884)
- Yang Liu (ORCID: https://orcid.org/0000-0002-3086-418X)
- Lulu Liu (ORCID: https://orcid.org/0000-0001-5227-7923)
- Ling Lin
- Changyuan Wang (ORCID: https://orcid.org/0009-0001-4505-4040)
- Junning Li (ORCID: https://orcid.org/0000-0001-6012-8258)
- Ke Xu (ORCID: https://orcid.org/0000-0003-3812-8619)
- Xu Wang (ORCID: https://orcid.org/0000-0002-5059-3911)
- Kailun Zou
- Wenrong Xiao
Institutions
- Beijing Institute of Technology (CN)
- Korea Advanced Institute of Science and Technology (KR)
- Hunan University (CN)
- Guizhou University (CN)
- Nankai University (CN)
- National Institute for Materials Science (JP)
- Quality and Reliability (Greece) (GR)
- Division of Materials Science and Engineering (AU)
- Power Systems Engineering Research Center (US)
- COI Ceramics (United States) (US)
- Hebei Semiconductor Research Institute (CN)
- State Key Laboratory of Materials Processing and Die & Mould Technology (CN)
- Huazhong University of Science and Technology (CN)
- Tsinghua University (CN)
Publication Details
- Journal
- ACS Nano
- Published
- 2025-11-28
- DOI
- https://doi.org/10.1021/acsnano.5c12769
- Primary Topic
- Ferroelectric and Piezoelectric Materials
- Type
- article
- Field-Weighted Citation Impact
- 0.00