Simultaneously achieved high energy density and excellent thermal stability of lead-free barium titanate-based relaxor ferroelectric under low electric field

2019 ◽  
Vol 30 (17) ◽  
pp. 15912-15922 ◽  
Author(s):  
Xiuli Chen ◽  
Xu Li ◽  
Huanfu Zhou ◽  
Jie Sun ◽  
Xiaoxia Li ◽  
...  
2018 ◽  
Vol 6 (38) ◽  
pp. 10211-10217 ◽  
Author(s):  
Ningtao Liu ◽  
Ruihong Liang ◽  
Zhiyong Zhou ◽  
Xianlin Dong

The strategy of constructing weakly coupled polar structures is feasible and effective to boost the energy density and efficiency for bismuth ferrite-based bulk ceramics.


RSC Advances ◽  
2019 ◽  
Vol 9 (14) ◽  
pp. 7706-7717 ◽  
Author(s):  
Shuangshuang Yue ◽  
Baoquan Wan ◽  
Yunying Liu ◽  
Qiwei Zhang

The semiconductor properties of reduced barium titanate, with a high energy density of 9.7 J cm−3.


RSC Advances ◽  
2016 ◽  
Vol 6 (17) ◽  
pp. 14273-14282 ◽  
Author(s):  
Longwen Wu ◽  
Xiaohui Wang ◽  
Longtu Li

High energy density BaTiO3–Bi(Zn2/3Nb1/3)O3 materials with concurrently high energy efficiency.


2017 ◽  
Vol 164 (7) ◽  
pp. A1552-A1558 ◽  
Author(s):  
Xiaoya Wang ◽  
Yiqing Huang ◽  
Dongsheng Ji ◽  
Fredrick Omenya ◽  
Khim Karki ◽  
...  

2021 ◽  
Author(s):  
Hao Yan ◽  
Baijie Song ◽  
Kun Zhu ◽  
Liuxue Xu ◽  
Bo Shen ◽  
...  

Abstract In this work, lead-free (1-x)(Bi0.5Na0.5)0.94Ba0.06TiO3-xBi(Mg0.5Ti0.5)O3 (abbreviated as BNBT-xBMT, x = 0.3, 0.4, 0.5 and 0.6) thin films were prepared on Pt/Ti/SiO2/Si substrates using sol-gel method. The microstructures, dielectric and energy storage properties were investigated. The results showed that the addition of BMT disrupted the long-range ferroelectric order and enhanced the relaxor behavior of BNBT-xBMT thin films. In addition, the leakage current density of thin films was also reduced by the doping of moderate amount of BMT. A high recoverable energy density of 34.36 J/cm3 with an efficiency of 56.63% was achieved in the BNBT-0.5BMT thin film under the electric field of 2149 kV/cm. Furthermore, BNBT-0.5BMT thin film exhibited superior stability in the temperature range of 30°C − 145°C and frequency range of 500 Hz − 5 kHz, as well as long-term fatigue durability after 1 × 105 cycles. These results suggest that BNBT-0.5BMT thin film may be a promising material for lead-free dielectric energy storage applications.


2017 ◽  
Vol 5 (21) ◽  
pp. 10437-10441 ◽  
Author(s):  
Dheeraj Kumar ◽  
Gregory H. Imler ◽  
Damon A. Parrish ◽  
Jean'ne M. Shreeve

A rare high energy density oxidizer with excellent thermal stability along with good oxygen balance and energetic properties was synthesized and fully characterized.


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