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DOI | 10.1126/science.aaw8109 |
Ultrahigh-energy density lead-free dielectric films via polymorphic nanodomain design | |
Pan, Hao1; Li, Fei2,3; Liu, Yao2; Zhang, Qinghua4; Wang, Meng5,6; Lan, Shun1; Zheng, Yunpeng1; Ma, Jing1; Gu, Lin4; Shen, Yang1; Yu, Pu5,6; Zhang, Shujun7; Chen, Long-Qing3; Lin, Yuan-Hua1; Nan, Ce-Wen1 | |
2019-08-09 | |
发表期刊 | SCIENCE |
ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2019 |
卷号 | 365期号:6453页码:578-582 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA; Australia |
英文摘要 | Dielectric capacitors with ultrahigh power densities are fundamental energy storage components in electrical and electronic systems. However, a long-standing challenge is improving their energy densities. We report dielectrics with ultrahigh energy densities designed with polymorphic nanodomains. Guided by phase-field simulations, we conceived and synthesized lead-free BiFeO3-BaTiO3-SrTiO3 solid-solution films to realize the coexistence of rhombohedral and tetragonal nanodomains embedded in a cubic matrix. We obtained minimized hysteresis while maintaining high polarization and achieved a high energy density of 112 joules per cubic centimeter with a high energy efficiency of similar to 80%. This approach should be generalizable for designing high-performance dielectrics and other functional materials that benefit from nanoscale domain structure manipulation. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000483195200037 |
WOS关键词 | ELECTROMECHANICAL RESPONSE ; BREAKDOWN STRENGTH ; THIN-FILMS ; CAPACITORS ; POLYMER ; PIEZOELECTRICITY ; EFFICIENCY ; CERAMICS ; ORIGIN |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/202044 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing, Peoples R China; 2.Xi An Jiao Tong Univ, Elect Mat Res Lab, Key Lab, Minist Educ, Xian, Shaanxi, Peoples R China; 3.Penn State Univ, Dept Mat Sci & Engn, Mat Res Inst, University Pk, PA 16802 USA; 4.Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, Beijing, Peoples R China; 5.Tsinghua Univ, State Key Lab Low Dimens Quantum Phys, Beijing, Peoples R China; 6.Tsinghua Univ, Dept Phys, Beijing, Peoples R China; 7.Univ Wollongong, Inst Superconducting & Elect Mat, Australian Inst Innovat Mat, Wollongong, NSW, Australia |
推荐引用方式 GB/T 7714 | Pan, Hao,Li, Fei,Liu, Yao,et al. Ultrahigh-energy density lead-free dielectric films via polymorphic nanodomain design[J]. SCIENCE,2019,365(6453):578-582. |
APA | Pan, Hao.,Li, Fei.,Liu, Yao.,Zhang, Qinghua.,Wang, Meng.,...&Nan, Ce-Wen.(2019).Ultrahigh-energy density lead-free dielectric films via polymorphic nanodomain design.SCIENCE,365(6453),578-582. |
MLA | Pan, Hao,et al."Ultrahigh-energy density lead-free dielectric films via polymorphic nanodomain design".SCIENCE 365.6453(2019):578-582. |
条目包含的文件 | 条目无相关文件。 |
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