TY - JOUR
T1 - Fatigue-Free Aurivillius Phase Ferroelectric Thin Films with Ultrahigh Energy Storage Performance
AU - Pan, Zhongbin
AU - Wang, Peng
AU - Hou, Xu
AU - Yao, Lingmin
AU - Zhang, Guangzu
AU - Wang, Jie
AU - Liu, Jinjun
AU - Shen, Meng
AU - Zhang, Yujing
AU - Jiang, Shenglin
AU - Zhai, Jiwei
AU - Wang, Qing
N1 - Funding Information:
Z.P., P.W., and X.H. contributed equally to this work. This work was supported by the National Nature Science Foundation of China (Grant No. 51902167, 51972126, 11672264, and 51772108), Ningbo Nature Science Foundation of China (Grant No. 2019A610001), and Key Laboratory of Engineering Dielectrics and Its Application (Harbin University of Science and Technology), Ministry of Education of China.
Publisher Copyright:
© 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
PY - 2020/8/1
Y1 - 2020/8/1
N2 - Dielectric capacitors have become a key enabling technology for electronics and electrical systems. Although great strides have been made in the development of ferroelectric ceramic and thin films for capacitors, much less attention has been given to preventing polarization fatigue, while improving the energy density, of ferroelectrics. Here superior capacitive properties and outstanding stability are reported over 107 charge/discharge cycles and a wide temperature range of −60 to 200 °C of ferroelectric Aurivillius phase Bi3.25La0.75Ti3O12-BiFeO3 (BLT-BFO), which represents one of the best capacitive performances recorded for the ferroelectric materials. The modification of BLT thin films with BFO overcomes the constraints of ferroelectric Aurivillius compounds and presents an unprecedented combination of the ideal features including improved polarization, reduced ferroelectric hysteresis, and lowered leakage current for high-energy-density capacitors. Given the lead-free and fatigue-free nature of this Aurivillius phase ferroelectric, this work unveils a new approach towards high-performance eco-friendly ferroelectric materials for electrical energy storage applications.
AB - Dielectric capacitors have become a key enabling technology for electronics and electrical systems. Although great strides have been made in the development of ferroelectric ceramic and thin films for capacitors, much less attention has been given to preventing polarization fatigue, while improving the energy density, of ferroelectrics. Here superior capacitive properties and outstanding stability are reported over 107 charge/discharge cycles and a wide temperature range of −60 to 200 °C of ferroelectric Aurivillius phase Bi3.25La0.75Ti3O12-BiFeO3 (BLT-BFO), which represents one of the best capacitive performances recorded for the ferroelectric materials. The modification of BLT thin films with BFO overcomes the constraints of ferroelectric Aurivillius compounds and presents an unprecedented combination of the ideal features including improved polarization, reduced ferroelectric hysteresis, and lowered leakage current for high-energy-density capacitors. Given the lead-free and fatigue-free nature of this Aurivillius phase ferroelectric, this work unveils a new approach towards high-performance eco-friendly ferroelectric materials for electrical energy storage applications.
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U2 - 10.1002/aenm.202001536
DO - 10.1002/aenm.202001536
M3 - Article
AN - SCOPUS:85087149987
SN - 1614-6832
VL - 10
JO - Advanced Energy Materials
JF - Advanced Energy Materials
IS - 31
M1 - 2001536
ER -
