Two dimensional confinement induced discontinuous chain transitions for augmented electrocaloric cooling
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 elec...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-01-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-024-55726-5 |
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| author | Fang Wang Zhong-Ye Wang Yao-Rong Luo Ming-Ding Li Yu-Rong Yang Wei Li Xiao-Liang Wang Tiannan Yang Qun-Dong Shen |
| author_facet | Fang Wang Zhong-Ye Wang Yao-Rong Luo Ming-Ding Li Yu-Rong Yang Wei Li Xiao-Liang Wang Tiannan Yang Qun-Dong Shen |
| author_sort | Fang Wang |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-87637d1d25024f5190c8f737cb7c8da3 |
| institution | Kabale University |
| issn | 2041-1723 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-87637d1d25024f5190c8f737cb7c8da32025-01-19T12:32:23ZengNature PortfolioNature Communications2041-17232025-01-011611910.1038/s41467-024-55726-5Two dimensional confinement induced discontinuous chain transitions for augmented electrocaloric coolingFang Wang0Zhong-Ye Wang1Yao-Rong Luo2Ming-Ding Li3Yu-Rong Yang4Wei Li5Xiao-Liang Wang6Tiannan Yang7Qun-Dong Shen8Department of Polymer Science and Engineering, Key Laboratory of High-Performance Polymer Materials and Technology of MOE, State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry & Chemical Engineering, Nanjing UniversityKey Laboratory of Mesoscopic Chemistry of Ministry of Education, Institute of Theoretical and Computational Chemistry, Nanjing UniversityNational Laboratory of Solid Microstructures and Collaborative Innovation Center of Advanced Microstructures, College of Engineering and Applied Science, Nanjing UniversityDepartment of Polymer Science and Engineering, Key Laboratory of High-Performance Polymer Materials and Technology of MOE, State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry & Chemical Engineering, Nanjing UniversityNational Laboratory of Solid Microstructures and Collaborative Innovation Center of Advanced Microstructures, College of Engineering and Applied Science, Nanjing UniversityKey Laboratory of Mesoscopic Chemistry of Ministry of Education, Institute of Theoretical and Computational Chemistry, Nanjing UniversityDepartment of Polymer Science and Engineering, Key Laboratory of High-Performance Polymer Materials and Technology of MOE, State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry & Chemical Engineering, Nanjing UniversityInterdisciplinary Research Centre, School of Mechanical Engineering, Shanghai Jiao Tong UniversityDepartment of Polymer Science and Engineering, Key Laboratory of High-Performance Polymer Materials and Technology of MOE, State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry & Chemical Engineering, Nanjing UniversityAbstract 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.https://doi.org/10.1038/s41467-024-55726-5 |
| spellingShingle | Fang Wang Zhong-Ye Wang Yao-Rong Luo Ming-Ding Li Yu-Rong Yang Wei Li Xiao-Liang Wang Tiannan Yang Qun-Dong Shen Two dimensional confinement induced discontinuous chain transitions for augmented electrocaloric cooling Nature Communications |
| title | Two dimensional confinement induced discontinuous chain transitions for augmented electrocaloric cooling |
| title_full | Two dimensional confinement induced discontinuous chain transitions for augmented electrocaloric cooling |
| title_fullStr | Two dimensional confinement induced discontinuous chain transitions for augmented electrocaloric cooling |
| title_full_unstemmed | Two dimensional confinement induced discontinuous chain transitions for augmented electrocaloric cooling |
| title_short | Two dimensional confinement induced discontinuous chain transitions for augmented electrocaloric cooling |
| title_sort | two dimensional confinement induced discontinuous chain transitions for augmented electrocaloric cooling |
| url | https://doi.org/10.1038/s41467-024-55726-5 |
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