Induced slim ferroelectric hysteresis loops and enhanced energy-storage properties of Mn-doped (Pb0.93La0.07)(Zr0.82Ti0.18)O3 anti-ferroelectric thick films by aerosol deposition

2021 ◽  
Author(s):  
Ajeet Kumar ◽  
Geon Lee ◽  
Yeon Gyeong Chae ◽  
Atul Thakre ◽  
Han Seung Choi ◽  
...  
Keyword(s):  
Energy Storage ◽  
Thick Films ◽  
Hysteresis Loops ◽  
Aerosol Deposition ◽  
Energy Storage Properties ◽  
Ferroelectric Hysteresis ◽  
Mn Doped ◽  
Storage Properties

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.

Effect of the Ba/K ratio on structural, dielectric and energy storage properties of BaO–K2O–TiO2–P2O5 glass-ceramics

2020 ◽  
Vol 61 (6) ◽  
pp. 213-221
Author(s):  
E. Haily ◽  
◽  
L. Bih ◽  
A. El Bouari ◽  
A. Lahmar ◽  
...  
Keyword(s):  
Energy Storage ◽  
Glass Ceramics ◽  
Glass Network ◽  
Hysteresis Loops ◽  
X Ray Diffraction ◽  
Dielectric Parameters ◽  
Optimum Parameters ◽  
Energy Storage Properties ◽  
Volume Measurements ◽  
Storage Properties

xBaO–(20−x)K2O–30TiO2–50P2O5 with (0≤x≤20 mol%) glasses were successfully elaborated by the melt quenching while their related glass-ceramics were developed by controlled crystallisation. Density and molar volume measurements, differential thermal analysis and Raman spectroscopy were carried out to examine the glassy structure, the results revealed that the addition of BaO increases the reticulation and reinforces the glass network by the creation of strengthened linkages. X-ray diffraction has identified the formation of MTi2(PO4)3 with M=(K, Ba0·5) in all the glass-ceramics (GC) and the precipitation of a secondary BaTiP2O8 phase when x increase beyond 10 mol%. The dielectric properties of the glass-ceramics were studied by impedance spectroscopy, it showed that the addition of BaO induces an enhancement of both thermal and frequency stability of the dielectric parameters (εr and tanδ). The glass-ceramic with 5 mol% of BaO GC-(x=5) presents the highest dielectric constant and the lowest dielectric loss. The P-E hysteresis loops were recorded at room temperature and the energy storage parameters of the glass-ceramics were determined. These parameters were significantly improved by the increase of the BaO content and the optimum parameters were obtained for GC-(x=5). The dielectric and energy storage parameters were discussed according to the structure data.

scholarly journals Switching and energy-storage characteristics in PLZT 2/95/5 antiferroelectric ceramic system

2016 ◽  
Vol 06 (04) ◽  
pp. 1620003 ◽  
Author(s):  
A. Peláiz-Barranco ◽  
Y. Mendez-González ◽  
J. D. S. Guerra ◽  
Xiucai Wang ◽  
Tongqing Yang
Keyword(s):  
Energy Storage ◽  
Hysteresis Loops ◽  
Energy Storage Density ◽  
Ceramic System ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Electric Field Dependence ◽  
Energy Storage Properties ◽  
Storage Characteristics ◽  
Storage Properties

Switching mechanisms and energy-storage properties have been investigated in (Pb[Formula: see text]La[Formula: see text](Zr[Formula: see text]Ti[Formula: see text]O3 antiferroelectric ceramics. The electric field dependence of polarization ([Formula: see text]–[Formula: see text] hysteresis loops) indicates that both the ferroelectric (FE) and antiferroelectric (AFE) phases coexist, being the AFE more stable above 100[Formula: see text]C. It has been observed that the temperature has an important influence on the switching parameters. On the other hand, the energy-storage density, which has been calculated from the [Formula: see text]–[Formula: see text] hysteresis loops, shows values higher than 1[Formula: see text]J/cm3 for temperatures above 100[Formula: see text]C with around 73% of efficiency as average. These properties indicate that the studied ceramic system reveals as a promising AFE material for energy-storage devices application.

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