期刊
CERAMICS INTERNATIONAL
卷 40, 期 4, 页码 5327-5332出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2013.10.110
关键词
A. Sol gel processes; B. Composites; C. Ferroelectric properties; E. Capacitors
资金
- National Natural Science Foundation of China [11072208, 11272274, 11032010]
- Research Fund for the Doctoral Program of Higher Education of China [20114301110004]
- Hunan Provincial Natural Science Foundation of China [12111007]
- Foundation for the Author of National Excellent Doctoral Dissertation of PR China [201143]
Multilayered thin films consisting of both 0.88BaTiO(3)-0.12Bi(Mg-0.5,Ti-0.5)O-3 ferroelectric layers and PbZrO3 antiferroelectric layers were prepared by sol gel method, exhibiting high dielectric permittivity, large polarization, high recoverable energy storage density and high energy storage efficiency. A maximum polarization of 93 mu C/cm(2), recoverable energy storage density of 24.7 J/cm(3) and energy storage efficiency of 60% have been achieved at an electric field of 1050 kV/cm. Furthermore, the energy storage performance of the muliilayered thin films was improved by modified layer-by-layer annealing process, where larger polarization (115 mu C/cm(2)), higher recoverable energy storage density (33 J/cm(3)) and higher energy storage efficiency (similar to 70%) were obtained. (c) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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