TY  - JOUR
AU  - Sun, Zixiong
AU  - Wang, Linxi
AU  - Liu, Ming
AU  - Ma, Chunrui
AU  - Liang, Zhongshuai
AU  - Fan, Qiaolan
AU  - Lu, Lu
AU  - Lou, Xiaojie
AU  - Wang, Hong
AU  - Jia, Chun-Lin
TI  - Interface thickness optimization of lead-free oxide multilayer capacitors for high-performance energy storage
JO  - Journal of materials chemistry / A Materials for energy and sustainability A
VL  - 6
IS  - 4
SN  - 2050-7496
CY  - London ˜[u.a.]œ
PB  - RSC72819
M1  - FZJ-2019-01063
SP  - 1858 - 1864
PY  - 2018
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000423466100055
DO  - DOI:10.1039/C7TA10271B
UR  - https://juser.fz-juelich.de/record/860288
ER  -