TY  - JOUR
AU  - Liang, Zhongshuai
AU  - Liu, Ming
AU  - Ma, Chunrui
AU  - Shen, Lvkang
AU  - Lu, Lu
AU  - Jia, Chun-Lin
TI  - High-performance BaZr 0.35 Ti 0.65 O 3 thin film capacitors with ultrahigh energy storage density and excellent thermal stability
JO  - Journal of materials chemistry / A Materials for energy and sustainability A
VL  - 6
IS  - 26
SN  - 2050-7496
CY  - London
PB  - RSC72819
M1  - FZJ-2019-01062
SP  - 12291 - 12297
PY  - 2018
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000437469300010
DO  - DOI:10.1039/C7TA11109F
UR  - https://juser.fz-juelich.de/record/860287
ER  -