Ultrahigh energy-storage performance in lead-free BZT thin-films by tuning relaxor behavior

2021 ◽  
Vol 133 ◽  
pp. 111072
Author(s):  
Minh D. Nguyen
Keyword(s):  
Thin Films ◽  
Energy Storage ◽  
Lead Free ◽  
Relaxor Behavior ◽  
Ultrahigh Energy ◽  
Storage Performance

Composition and Structure Optimized BiFeO 3 ‐SrTiO 3 Lead‐Free Ceramics with Ultrahigh Energy Storage Performance

Small ◽  
2022 ◽  
pp. 2106515
Author(s):  
Fei Yan ◽  
Hairui Bai ◽  
Guanglong Ge ◽  
Jinfeng Lin ◽  
Cheng Shi ◽  
...  
Keyword(s):  
Energy Storage ◽  
Lead Free ◽  
Ultrahigh Energy ◽  
Storage Performance ◽  
Lead Free Ceramics ◽  
Composition And Structure

scholarly journals Enhanced energy storage performance and fatigue resistance of Mn-doped 0.7Na0.5Bi0.5TiO3–0.3Sr0.7Bi0.2TiO3 lead-free ferroelectric ceramics

2020 ◽  
pp. 1-10
Author(s):  
Jinbo Wang ◽  
Huiqing Fan
Keyword(s):  
Energy Storage ◽  
Fatigue Resistance ◽  
Dielectric Response ◽  
Lead Free ◽  
Ferroelectric Ceramics ◽  
Relaxor Behavior ◽  
Storage Performance ◽  
Energy Storage Properties ◽  
Mn Doped ◽  
Storage Properties

The validity of Mn element on enhanced energy storage performance and fatigue resistance of Mn-doped 0.7Na0.5Bi0.5TiO3–0.3Sr0.7Bi0.2TiO3 lead-free ferroelectric ceramics (BNT–BST–xMn) is certified by doping. The effects of Mn modification on the dielectric behavior, ferroelectric, energy storage properties, and AC impedance are comprehensively investigated. It is found that the average grain size of the ceramics modified by Mn additions is reduced slightly. Moreover, the relaxor properties are evidently enhanced with the increased Mn content. The AC impedance spectra can even better clarify the dielectric response and relaxor behavior. The results suggest that both of the dielectric response and relaxor behavior are determined by defects especially concentration of the oxygen vacancy. The superior energy storage properties are realized at x = 0.05 with an energy storage density (Wrec) of 1.33 J/cm3 as well as energy storage efficiency (η) of 86.2% at 100 kV/cm, accompanied with a superior thermal stability. BNT–BST–5Mn ceramics can maintain a stable energy storage performance within 106 fatigue cycles, indicating an excellent fatigue resistance.

BiFeO3–SrTiO3 thin film as a new lead-free relaxor-ferroelectric capacitor with ultrahigh energy storage performance

2017 ◽  
Vol 5 (12) ◽  
pp. 5920-5926 ◽  
Author(s):  
Hao Pan ◽  
Yi Zeng ◽  
Yang Shen ◽  
Yuan-Hua Lin ◽  
Jing Ma ◽  
...  
Keyword(s):  
Energy Storage ◽  
Relaxor Ferroelectric ◽  
Lead Free ◽  
Dielectric Films ◽  
Energy Storage Density ◽  
Ultrahigh Energy ◽  
Storage Density ◽  
Ferroelectric Capacitor ◽  
Storage Performance ◽  
Thermal Stability Of

We report ultrahigh energy storage density of 51 J cm−3 and good fatigue & thermal stability of BiFeO3-based lead-free dielectric films.

Relaxor behavior and energy storage performance of ferroelectric PLZT thin films with different Zr/Ti ratios

2014 ◽  
Vol 40 (1) ◽  
pp. 557-562 ◽  
Author(s):  
Zhongqiang Hu ◽  
Beihai Ma ◽  
Shanshan Liu ◽  
Manoj Narayanan ◽  
Uthamalingam Balachandran
Keyword(s):  
Thin Films ◽  
Energy Storage ◽  
Relaxor Behavior ◽  
Storage Performance ◽  
Plzt Thin Films

Achieved High Energy Density and Excellent Thermal Stability in (1-x)(Bi0.5Na0.5)0.94Ba0.06TiO3-xBi(Mg0.5Ti0.5)O3 Relaxor Ferroelectric Thin Films

2021 ◽  
Author(s):  
Hao Yan ◽  
Baijie Song ◽  
Kun Zhu ◽  
Liuxue Xu ◽  
Bo Shen ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Energy Storage ◽  
Energy Density ◽  
High Energy ◽  
High Energy Density ◽  
Lead Free ◽  
Relaxor Behavior ◽  
Moderate Amount ◽  
Excellent Thermal Stability

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.

Ultrahigh Energy Storage Performance of Lead-Free Oxide Multilayer Film Capacitors via Interface Engineering

2016 ◽  
Vol 29 (5) ◽  
pp. 1604427 ◽  
Author(s):  
Zixiong Sun ◽  
Chunrui Ma ◽  
Ming Liu ◽  
Jin Cui ◽  
Lu Lu ◽  
...  
Keyword(s):  
Energy Storage ◽  
Multilayer Film ◽  
Lead Free ◽  
Ultrahigh Energy ◽  
Interface Engineering ◽  
Storage Performance

Mn doping to enhance energy storage performance of lead-free 0.7NBT-0.3ST thin films with weak oxygen vacancies

2017 ◽  
Vol 110 (24) ◽  
pp. 243901 ◽  
Author(s):  
Yulei Zhang ◽  
Weili Li ◽  
Wenping Cao ◽  
Yu Feng ◽  
Yulong Qiao ◽  
...  
Keyword(s):  
Thin Films ◽  
Energy Storage ◽  
Oxygen Vacancies ◽  
Lead Free ◽  
Mn Doping ◽  
Storage Performance

scholarly journals Fatigue resistant lead-free multilayer ceramic capacitors with ultrahigh energy density

2020 ◽  
Vol 8 (22) ◽  
pp. 11414-11423 ◽  
Author(s):  
Ge Wang ◽  
Zhilun Lu ◽  
Huijing Yang ◽  
Hongfen Ji ◽  
Ali Mostaed ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Electric Field ◽  
Lead Free ◽  
Ultrahigh Energy ◽  
Multilayer Ceramic Capacitors ◽  
Storage Performance ◽  
Multilayer Capacitors ◽  
Multilayer Ceramic ◽  
Recoverable Energy

Electrical homogeneity is vital in optimising energy storage performance in BiFeO3–BaTiO3–xBi(Li0.5Nb0.5)O3 ceramic multilayer capacitors, giving rise to high recoverable energy density ∼13.8 J cm−3 under electric field ∼950 kV cm−1 and fatigue resistance behaviour.

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