%0 Journal Article
%A Liang, Zhongshuai
%A Liu, Ming
%A Ma, Chunrui
%A Shen, Lvkang
%A Lu, Lu
%A Jia, Chun-Lin
%T High-performance BaZr 0.35 Ti 0.65 O 3 thin film capacitors with ultrahigh energy storage density and excellent thermal stability
%J Journal of materials chemistry / A Materials for energy and sustainability A
%V 6
%N 26
%@ 2050-7496
%C London
%I RSC72819
%M FZJ-2019-01062
%P 12291 - 12297
%D 2018
%X The ability to work at ultralow (−90 °C) or ultrahigh (200 °C) temperature with superior energy storage properties is essential for dielectric capacitors to operate in harsh environments. Here, we realized an ultrahigh recoverable energy density (Wrec) (78.7 J cm−3) and efficiency (η) (80.5%) in BaZr0.35Ti0.65O3 film capacitors through enhancing the breakdown electric field strength at room temperature. Moreover, the BaZr0.35Ti0.65O3 film capacitor exhibits great energy storage properties when measured from −150 °C to 200 °C. Wrec and η can reach the value of 41.9 J cm−3 and 66.4% under an electric strength of 4.0 MV cm−1 even at 200 °C, respectively. Especially, the variation of both Wrec and η at 200 °C during 1 × 106 cycles (ferroelectric fatigue tests) is less than 3%. All these reveal that the BZT film capacitor is a commendable material for application in equipment working in harsh environments.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000437469300010
%R 10.1039/C7TA11109F
%U https://juser.fz-juelich.de/record/860287