%0 Journal Article
%A Sun, Zixiong
%A Wang, Linxi
%A Liu, Ming
%A Ma, Chunrui
%A Liang, Zhongshuai
%A Fan, Qiaolan
%A Lu, Lu
%A Lou, Xiaojie
%A Wang, Hong
%A Jia, Chun-Lin
%T Interface thickness optimization of lead-free oxide multilayer capacitors for high-performance energy storage
%J Journal of materials chemistry / A Materials for energy and sustainability A
%V 6
%N 4
%@ 2050-7496
%C London [u.a.]
%I RSC72819
%M FZJ-2019-01063
%P 1858 - 1864
%D 2018
%X The effects of interface density and total multilayer film thickness on the dielectric properties and breakdown behavior have been revealed in this work by investigating the environment-friendly energy storage multilayer films of Ba0.7Ca0.3TiO3 (BCT) and BaZr0.2Ti0.8O3 (BZT) dielectrics. Numerical simulations based on a finite element method have given the breakdown process vividly, which agreed well with the experimental results. Moreover, not only the ultrahigh energy storage density of 51.8 J cm−3 with a great efficiency of 81.2% at room temperature but also robust thermal stability has been obtained by optimizing the interface density and total thickness. High energy density above 25.1 J cm−3 and excellent efficiency over 63.6% from room temperature to 200 °C provide a solid basis for potential applications of the multilayer systems in harsh environments.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000423466100055
%R 10.1039/C7TA10271B
%U https://juser.fz-juelich.de/record/860288
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