Journal of Materials Science Materials in Electronics, Journal Year: 2024, Volume and Issue: 35(31)
Published: Nov. 1, 2024
Language: Английский
Journal of Materials Science Materials in Electronics, Journal Year: 2024, Volume and Issue: 35(31)
Published: Nov. 1, 2024
Language: Английский
Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)
Published: Feb. 28, 2025
Lead-free BiFeO3-based (BF) materials with colossal spontaneous polarization and high Curie temperatures exhibit considerable potential for groundbreaking developments in dielectric capacitors. However, their inherent limitations, such as restricted breakdown strength (Eb) pronounced remanent polarization, critically restrict advancements energy storage capabilities. Herein, we achieve an exceptional recoverable density of 12.2 J cm−3 impressive efficiency 90.1% via the strategic design a dipolar region resilience to electric fields within ceramics. Guided by phase-field simulations validated through atomic-scale observations, superior performance is attributed incorporation aliovalent ions, which disrupt long-range ordered single-phase distribution, thus enhancing disorder vectors drastically reducing hysteresis. Simultaneously, refinement microstructural scale, coupled introduction high-bandgap synergistically improves durability. This study provides feasible blueprint leveraging high-performance ceramics, further facilitates progress lead-free capacitors next-generation systems. The authors make multi-oriented nanodomain ceramics fields, achieving 90.1%.
Language: Английский
Citations
2Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)
Published: Feb. 22, 2025
Language: Английский
Citations
1Journal of the European Ceramic Society, Journal Year: 2025, Volume and Issue: unknown, P. 117219 - 117219
Published: Jan. 1, 2025
Language: Английский
Citations
0physica status solidi (RRL) - Rapid Research Letters, Journal Year: 2025, Volume and Issue: unknown
Published: March 21, 2025
Bi 0.5 Na TiO 3 ‐based lead‐free ceramics have received much attention in the field of energy storage; however, their widespread use is hindered by high residual polarization. Herein, Bi(Mg 2/3 Nb 1/3 )O (BMN) incorporated into 0.41 Ca 0.18 (BNCT) using solid‐state reaction method. The with a perovskite structure (1− x )Bi ‐ (the abbreviation )BNCT‐ BMN, where = 0.00, 0.05, 0.10, 0.15, 0.20) are successfully synthesized. phase structure, microstructure, high‐temperature impedance, and storage properties BNCT investigated varying BMN content. Following that, 0.90BNCT–0.10BMN exhibits recoverable density 4.04 J cm −3 an efficiency 84.9% under electric strength 164 kV −1 . Furthermore, these demonstrate excellent frequency temperature stability 140 These results highlight promising potential 0.9BNCT‐0.10BMN for applications.
Language: Английский
Citations
0ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown
Published: March 23, 2025
Ceramic dielectric capacitors have gained significant attention due to their ultrahigh power density, current and ultrafast charge-discharge speed. However, potential applications been limited by relatively low energy storage density. Researchers employed various approaches enhance In this study, (1 - x)(Bi0.5Na0.5)0.7Sr0.3TiO3-xCa(Mg1/3Ta2/3)O3 ceramics were prepared via a solid-phase reaction, the effect of structure on properties was investigated. The results indicate that introduction Ca(Mg1/3Ta2/3)O3 significantly alters multiscale structures (Bi0.5Na0.5)0.7Sr0.3TiO3 ceramic, including transformation from T-phase C-phase, refinement ceramic grains, formation polar nanoregions (PNRs), accompanied an increase in bandgap relaxation degree. These structural changes collectively contributed improved overall modified ceramics. Notably, 0.92(Bi0.5Na0.5)0.7Sr0.3TiO3-0.08Ca(Mg1/3Ta2/3)O3 demonstrated recoverable density (Wrec) 8.37 J/cm3 with efficiency (η) 87.7% at electric field 530 kV/cm. It also exhibited good temperature stability (25-120 °C), frequency (1-100 Hz), fatigue (1-105). Furthermore, it displayed exceptional charge discharge properties, (WD), time (t0.9), (CD), (PD) attaining 4.06 J/cm3, 35.2 ns, 2143.28 A/cm2, 460.71 MW/cm3, respectively. findings suggest are promising candidates for high-power pulsed electronic systems.
Language: Английский
Citations
0ACS Applied Electronic Materials, Journal Year: 2025, Volume and Issue: unknown
Published: March 7, 2025
Language: Английский
Citations
0Journal of Materials Science, Journal Year: 2025, Volume and Issue: unknown
Published: March 17, 2025
Language: Английский
Citations
0Ceramics International, Journal Year: 2025, Volume and Issue: unknown
Published: April 1, 2025
Language: Английский
Citations
0Journal of Materials Chemistry C, Journal Year: 2024, Volume and Issue: unknown
Published: Jan. 1, 2024
A schematic diagram of the design strategy to achieve high energy storage performance via phase structure strategy: (a) and (b) dielectric temperature spectra, (c) PFM images, (d) slim unipolar P–E hysteresis loop.
Language: Английский
Citations
0Journal of Materials Science Materials in Electronics, Journal Year: 2024, Volume and Issue: 35(31)
Published: Nov. 1, 2024
Language: Английский
Citations
0