Polymorphic Localized Heterostructure Design for High-Performance Amorphous/Nanocrystalline Composite Film

Huang, Rui1; Wang, Jian1; Wang, Hongye2; Tao, Cheng1; Hao, Hua1; Yao, Zhonghua1; Liu, Hanxing3; Shen, Zhonghui3; Cao, Minghe1

2024-07-01

10.1002/adma.202406625

ADVANCED MATERIALS   影响因子和分区

0935-9648

1521-4095

["Analogous to linear dielectric, amorphous perovskite dielectrics characterized of high breakdown strength and low remanent polarization possess in-depth application in the sea, land, and air fields. Amorphous engineering is a common approach to balance the inverse relationship between polarization and breakdown strength in dielectric ceramic capacitor, however, the low polarization is the major barrier limiting the improvement of energy storage density. To address this concern, the polymorphic localized heterostructure confirmed by high-resolution transmission electron microscope (HR-TEM) and HADDF images is constructed in BaTiO3-Bi(Ni0.5Zr0.5)O3 amorphous/nanocrystalline composite film with SiO2 addition (BT-BNZ-xS, x = 3, 5, 7, 10 mol%). The stability of nanocrystalline region achieved by Si-rich transition region and the enhancive ultra-short-range ordering in the amorphous region synergistically result in large breakdown strength and nonhysteretic polarized response. This polymorphic localized heterostructure optimizes the thermal stability in a wide temperature range and contributes ultrahigh energy storage density of 149.9 J cm-3 with markedly enhanced efficiency of 79.0%. This study provides a universal strategy to design the polarization behavior in other amorphous perovskite-based dielectrics.","A polymorphic localized heterostructure (including nanocrystalline region with long-range order, Si-rich transition region, and amorphous region with locally ultra-short-range ordered structure) design is proposed to optimize the polarization behavior and breakdown strength in amorphous perovskite-based dielectrics for high-performance energy storage capacitor. image"]

amorphous energy storage dielectrics heterostructure thin film

SCI ; EI

英语

通讯

Guangdong Basic And Applied Basic Research Foundation["2022B1515120041","2022A1515010073"] ; Major Program of the Natural Science Foundation of China[51790490] ; Major Research Plan of the Natural Science Foundation of China[92066103] ; Natural Science Foundation of China[52002300]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:001263130100001

WILEY-V C H VERLAG GMBH

MATERIALS SCIENCE

Web of Science

1.Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
2.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
3.Wuhan Univ Technol, Int Sch Mat Sci & Engn, Wuhan 430070, Peoples R China

Huang, Rui,Wang, Jian,Wang, Hongye,et al. Polymorphic Localized Heterostructure Design for High-Performance Amorphous/Nanocrystalline Composite Film[J]. ADVANCED MATERIALS,2024.

Huang, Rui.,Wang, Jian.,Wang, Hongye.,Tao, Cheng.,Hao, Hua.,...&Cao, Minghe.(2024).Polymorphic Localized Heterostructure Design for High-Performance Amorphous/Nanocrystalline Composite Film.ADVANCED MATERIALS.

Huang, Rui,et al."Polymorphic Localized Heterostructure Design for High-Performance Amorphous/Nanocrystalline Composite Film".ADVANCED MATERIALS (2024).