Bibliographic Details
| Title: |
Two dimensional confinement induced discontinuous chain transitions for augmented electrocaloric cooling |
| Authors: |
Fang Wang, Zhong-Ye Wang, Yao-Rong Luo, Ming-Ding Li, Yu-Rong Yang, Wei Li, Xiao-Liang Wang, Tiannan Yang, Qun-Dong Shen |
| Source: |
Nature Communications, Vol 16, Iss 1, Pp 1-9 (2025) |
| Publisher Information: |
Nature Portfolio, 2025. |
| Publication Year: |
2025 |
| Collection: |
LCC:Science |
| Subject Terms: |
Science |
| More Details: |
Abstract Overheating remains a major barrier to chip miniaturization, leading to device malfunction. Addressing the urgent need for thermal management promotes the development of solid-state electrocaloric cooling. However, enhancing passive heat dissipation through two-dimensional materials in electrocaloric polymers typically compromises the electrocaloric effect. In this work, we utilize two-dimensional polyamide with porous structure and hydrogen bonding to achieve multiple polar conformations with short-range order in the electrocaloric composite polymers. The structure minimizes intermolecular interactions while reducing energy barriers for field-driven polar-nonpolar conformational transitions. The electrocaloric polymer exhibits doubled cooling efficiency at electric fields as low as 40 MV m−1. Additionally, the electrode design achieves a vertical deformation of 2 millimeters, demonstrating the feasibility of self-driven electric refrigeration devices. This porous organic two-dimensional material resolves cooling efficiency limitations from spatial confinement, advancing the integration of two-dimensional materials in flexible electronics. |
| Document Type: |
article |
| File Description: |
electronic resource |
| Language: |
English |
| ISSN: |
2041-1723 |
| Relation: |
https://doaj.org/toc/2041-1723 |
| DOI: |
10.1038/s41467-024-55726-5 |
| Access URL: |
https://doaj.org/article/87637d1d25024f5190c8f737cb7c8da3 |
| Accession Number: |
edsdoj.87637d1d25024f5190c8f737cb7c8da3 |
| Database: |
Directory of Open Access Journals |
