Structure-evolution-designed amorphous oxides for dielectric energy storage
Abstract Recently, rapidly increased demands of integration and miniaturization continuously challenge energy densities of dielectric capacitors. New materials with high recoverable energy storage densities become highly desirable. Here, by structure evolution between fluorite HfO2 and perovskite ha...
| Main Authors: | , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-05-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-023-38847-1 |
| _version_ | 1797817883889238016 |
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| author | Yahui Yu Qing Zhang Zhiyu Xu Weijie Zheng Jibo Xu Zhongnan Xi Lin Zhu Chunyan Ding Yanqiang Cao Chunyan Zheng Yalin Qin Shandong Li Aidong Li Di Wu Karin M. Rabe Xiaohui Liu Zheng Wen |
| author_facet | Yahui Yu Qing Zhang Zhiyu Xu Weijie Zheng Jibo Xu Zhongnan Xi Lin Zhu Chunyan Ding Yanqiang Cao Chunyan Zheng Yalin Qin Shandong Li Aidong Li Di Wu Karin M. Rabe Xiaohui Liu Zheng Wen |
| author_sort | Yahui Yu |
| collection | DOAJ |
| description | Abstract Recently, rapidly increased demands of integration and miniaturization continuously challenge energy densities of dielectric capacitors. New materials with high recoverable energy storage densities become highly desirable. Here, by structure evolution between fluorite HfO2 and perovskite hafnate, we create an amorphous hafnium-based oxide that exhibits the energy density of ~155 J/cm3 with an efficiency of 87%, which is state-of-the-art in emergingly capacitive energy-storage materials. The amorphous structure is owing to oxygen instability in between the two energetically-favorable crystalline forms, in which not only the long-range periodicities of fluorite and perovskite are collapsed but also more than one symmetry, i.e., the monoclinic and orthorhombic, coexist in short range, giving rise to a strong structure disordering. As a result, the carrier avalanche is impeded and an ultrahigh breakdown strength up to 12 MV/cm is achieved, which, accompanying with a large permittivity, remarkably enhances the energy storage density. Our study provides a new and widely applicable platform for designing high-performance dielectric energy storage with the strategy exploring the boundary among different categories of materials. |
| first_indexed | 2024-03-13T09:00:03Z |
| format | Article |
| id | doaj.art-04b08ef847cd49d1a16ea7f99379cac9 |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-03-13T09:00:03Z |
| publishDate | 2023-05-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-04b08ef847cd49d1a16ea7f99379cac92023-05-28T11:21:12ZengNature PortfolioNature Communications2041-17232023-05-011411810.1038/s41467-023-38847-1Structure-evolution-designed amorphous oxides for dielectric energy storageYahui Yu0Qing Zhang1Zhiyu Xu2Weijie Zheng3Jibo Xu4Zhongnan Xi5Lin Zhu6Chunyan Ding7Yanqiang Cao8Chunyan Zheng9Yalin Qin10Shandong Li11Aidong Li12Di Wu13Karin M. Rabe14Xiaohui Liu15Zheng Wen16College of Physics, Qingdao UniversitySchool of Physics, Shandong UniversityCollege of Physics, Qingdao UniversityCollege of Physics, Qingdao UniversityCollege of Physics, Qingdao UniversityNational Laboratory of Solid-State Microstructures, Department of Materials Science and Engineering, Jiangsu Key Laboratory of Artificial Functional Materials and Collaborative Innovation Center for Advanced Materials, Nanjing UniversityNational Laboratory of Solid-State Microstructures, Department of Materials Science and Engineering, Jiangsu Key Laboratory of Artificial Functional Materials and Collaborative Innovation Center for Advanced Materials, Nanjing UniversityCollege of Physics, Qingdao UniversityInstitute of Micro-nano Photonics and Quantum Manipulation, School of Science, Nanjing University of Science and TechnologyCollege of Physics, Qingdao UniversityCollege of Physics, Qingdao UniversityCollege of Electronics and Information, Qingdao UniversityNational Laboratory of Solid-State Microstructures, Department of Materials Science and Engineering, Jiangsu Key Laboratory of Artificial Functional Materials and Collaborative Innovation Center for Advanced Materials, Nanjing UniversityNational Laboratory of Solid-State Microstructures, Department of Materials Science and Engineering, Jiangsu Key Laboratory of Artificial Functional Materials and Collaborative Innovation Center for Advanced Materials, Nanjing UniversityDepartment of Physics and Astronomy, Rutgers UniversitySchool of Physics, Shandong UniversityCollege of Physics, Qingdao UniversityAbstract Recently, rapidly increased demands of integration and miniaturization continuously challenge energy densities of dielectric capacitors. New materials with high recoverable energy storage densities become highly desirable. Here, by structure evolution between fluorite HfO2 and perovskite hafnate, we create an amorphous hafnium-based oxide that exhibits the energy density of ~155 J/cm3 with an efficiency of 87%, which is state-of-the-art in emergingly capacitive energy-storage materials. The amorphous structure is owing to oxygen instability in between the two energetically-favorable crystalline forms, in which not only the long-range periodicities of fluorite and perovskite are collapsed but also more than one symmetry, i.e., the monoclinic and orthorhombic, coexist in short range, giving rise to a strong structure disordering. As a result, the carrier avalanche is impeded and an ultrahigh breakdown strength up to 12 MV/cm is achieved, which, accompanying with a large permittivity, remarkably enhances the energy storage density. Our study provides a new and widely applicable platform for designing high-performance dielectric energy storage with the strategy exploring the boundary among different categories of materials.https://doi.org/10.1038/s41467-023-38847-1 |
| spellingShingle | Yahui Yu Qing Zhang Zhiyu Xu Weijie Zheng Jibo Xu Zhongnan Xi Lin Zhu Chunyan Ding Yanqiang Cao Chunyan Zheng Yalin Qin Shandong Li Aidong Li Di Wu Karin M. Rabe Xiaohui Liu Zheng Wen Structure-evolution-designed amorphous oxides for dielectric energy storage Nature Communications |
| title | Structure-evolution-designed amorphous oxides for dielectric energy storage |
| title_full | Structure-evolution-designed amorphous oxides for dielectric energy storage |
| title_fullStr | Structure-evolution-designed amorphous oxides for dielectric energy storage |
| title_full_unstemmed | Structure-evolution-designed amorphous oxides for dielectric energy storage |
| title_short | Structure-evolution-designed amorphous oxides for dielectric energy storage |
| title_sort | structure evolution designed amorphous oxides for dielectric energy storage |
| url | https://doi.org/10.1038/s41467-023-38847-1 |
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