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Antiferroelectric capacitors for power electronics
Conventional polymer-based film capacitors and multilayer ceramic capacitors (MLCCs) are restricted in terms of thermal stability and capacitance density or show a strong decrease in capacitance when …
Lead-free BiFeO3-BaTiO3 based high-Tc ferroelectric ceramics ...
Qi et al. reported a 0.76NaNbO 3 –0.24(Bi 0.5 Na 0.5)TiO 3 antiferroelectric ceramic that exhibits an ultrahigh energy-storage density of ≈12.2 J/cm 3 and an …
Antiferroelectric Ceramics for Energy‐Efficient Capacitors by …
Antiferroelectric ceramics, via the electric-field-induced antiferroelectric (AFE)–ferroelectric (FE) phase transitions, show great promise for high-energy-density …
Antiferroelectric Ceramics for Energy-Efficient Capacitors by …
Antiferroelectric ceramics, via the electric-field-induced antiferroelectric (AFE) - ferroelectric (FE) phase transitions, show great promise for high-energy-density capacitors. Yet, currently, only 70∼80% energy release is found during a charge-discharge cycle. Here, for PbZrO 3 -based oxi …
Giant dielectric tunability in ferroelectric ceramics with ultralow ...
Capacitors constitute the fundamental components of microwave-integrated devices within electronic systems, and their performance is primarily governed by the dielectric materials employed.
High energy-storage performance of PLZS antiferroelectric multilayer ...
Multilayer ceramic capacitors in energy-storage applications have received increasing attention due to the advantages of high power density, low drive voltage and fast charge/discharge rates. ... However, the low energy density is a great challenge which limits the applications of multilayer ceramic capacitors. Here, an antiferroelectric Pb 0. ...
High energy-storage density and efficiency in PbZrO3-based ...
The utilization of antiferroelectric (AFE) materials is commonly believed as an effective strategy to improve the energy-storage density of multilayer ceramic capacitors (MLCCs). Unfortunately, the inferior energy conversion efficiency ( η ) leads to high energy dissipation, which severely restricts the broader applications of MLCCs due …
A high energy density relaxor antiferroelectric pulsed capacitor ...
Pulsed capacitors require high energy density and low loss, properties that can be realized through selection of composition. Ceramic (Pb0.88La0.08)(Zr0.91Ti0.09)O3 was found to be an ideal candidate. La3+ doping and excess PbO were used to produce relaxor antiferroelectric behavior with slim and …
Novel lead-free NaNbO3-based relaxor antiferroelectric ceramics with ...
Temperature-dependent dielectric constant (ε r) under different frequencies of (1-x)NN-xBSFN ceramics are plotted in Fig. 2 (a).A sharp peak around 205 °C corresponding to the phase transition from antiferroelectric P phase to antiferroelectric R phase (T P-R) could be observed for x = 0.05 [28, 29], while the peak vanishes for x > …
Antiferroelectric Ceramics for Energy‐Efficient Capacitors by …
Antiferroelectric ceramics, via the electric‐field‐induced antiferroelectric (AFE)–ferroelectric (FE) phase transitions, show great promise for high‐energy‐density …
High energy storage properties of NaNbO3-based relaxor ...
A new generation of environmentally benign NaNbO 3 (NN)-based antiferroelectric ceramics have gained great interest in energy storage capacitors. Nevertheless, the low breakdown electric field (E b) and high energy density loss in pure NN ceramic restrict the improvement of the energy storage property.A combined …
Analysis on nonlinearity of antiferroelectric multilayer ceramic ...
The nonlinearity of a commercial antiferroelectric (AFE) multilayer ceramic capacitor (MLCC) was investigated via hysteresis loop and DC bias characteristics. Capacitors based on linear polypropylene and relaxor ferroelectric with similar initial capacitance were chosen for comparison. Higher stored charge and energy …
Anti-Ferroelectric Ceramics for High Energy Density Capacitors
The newly developed capacitor exhibits a wide temperature usage range of -60 to 120 °C, with an energy-density variation of less than 10%, and satisfactory cycling reliability, with degradation of more than 8% over 106 cycles demonstrate that the NBT-0.45SBT multilayer ceramic is a promising candidate for high-power energy storage …
Polarization of antiferroelectric ceramics for pulse capacitors …
Antiferroelectric (AFE) ceramics based on Pb(Zr,Sn,Ti)O 3 (PZST) have shown great potential for applications in pulsed power capacitors because of their fast charge-discharge rates (on the order ...
Regulating the switching electric field and energy-storage …
Temperature-dependent stability of energy storage properties of Pb 0.97 La 0.02 (Zr 0.58 Sn 0.335 Ti 0.085)O 3 antiferroelectric ceramics for pulse power capacitors Appl. Phys. Lett., 106 ( 2015 ), Article 262901
Antiferroelectric negative capacitance from a structural phase ...
where C para is the parasitic capacitance that appears in parallel to the dielectric/antiferroelectric capacitor, ... energy‐storage density in antiferroelectric ceramics with field‐induced ...
Evaluation of discharge energy density of antiferroelectric ceramics ...
The energy in pulse capacitors need to discharge rapidly to obtain high peak power. However, the discharge energy density of antiferroelectric (AFE) dielectrics for pulse capacitors is traditionally evaluated by hysteresis loop (defined as quasi-static method). To verify whether the quasi-static method is suitable for pulse applications, AFE …
Antiferroelectric Ceramics for Energy‐Efficient Capacitors by …
Antiferroelectric ceramics, via the electric-field-induced antiferroelectric (AFE)–ferroelectric (FE) phase transitions, show great promise for high-energy-density capacitors. Yet, currently, only 70–80% energy release is found during a …
Antiferroelectric Ceramics for Energy-Efficient Capacitors by …
Antiferroelectric ceramics, via the electric-field-induced antiferroelectric (AFE) – ferroelectric (FE) phase transitions, show great promise for high-energy-density capacitors. Yet, currently, only 70∼80% energy release is found during a charge-discharge cycle. Here, for PbZrO3-based oxides, we apply geometric nonlinear theory of martensitic phase …
Enhanced energy storage performance in AgNbO3 antiferroelectric ...
Dielectric capacitors are widely concerned because of high-power density. It is essential to develop lead-free materials with high recoverable energy density (Wrec). Herein, the Ag1–3xEuxNbO3 (AENx) ceramics with x = 0, 0.01, 0.02, and 0.04 were synthesized via a traditional solid-state reaction method. The effects of Eu3+ additions on …
Anti-Ferroelectric Ceramics for High Energy Density Capacitors
Consequently, a high energy storage density of 6.4 J/cm 3 was observed for a 50% PLZST sample with a material efficiency of 62.4%. A unique study by Chen et …
Design and Materials of Antiferroelectric Capacitors for High …
Comparisons of the film capacitor technology, the Barium-Titanate based, and the PLZT based MLCCs (multilayer ceramic capacitors), including the cost estimate show that there is a big future potential of the antiferroelectric material in the new design, and in turn also for innovations in high density electronic power packages.
Energy storage properties of NaNbO3-CaZrO3 ceramics with …
Dielectric energy‐storage capacitors have received increasing attention in recent years due to the advantages of high voltage, high power density, and fast charge/discharge rates. ... (Zr0.58Sn0.335Ti0.085)O3 antiferroelectric (AFE) ceramics were studied under the combined effects of electric field ...
Synergy of a Stabilized Antiferroelectric Phase and …
Relaxor antiferroelectric (AFE) ceramic capacitors have drawn growing attention in future advanced pulsed power devices for their superior energy storage performance. However, state of the art dielectric …
Antiferroelectric ceramic capacitors with high energy-storage …
Antiferroelectric ceramics, thanks to their remarkable energy storage density W, superior energy storage efficiency ... 1.5, 2, and 2.5) were selected to fabricate antiferroelectric capacitors by solid-state synthesis. Analytical reagents were employed as raw materials, including PbO, La 2 O 3, TiO 2, SnO 2, ZrO 2, and CdCO 3. All reagents …
Antiferroelectric Ceramics for Energy‐Efficient Capacitors by …
Antiferroelectric ceramics, via the electric‐field‐induced antiferroelectric (AFE)–ferroelectric (FE) phase transitions, show great promise for high‐energy‐density capacitors.
Superb energy density of PbHfO3-based antiferroelectric ceramics …
Antiferroelectric (AFE) ceramics are excellent candidates for developing capacitors with enhanced energy storage capabilities due to their unique field-induced …
Lead-free BiFeO3-BaTiO3 based high-Tc ferroelectric ceramics ...
Lead-free BiFeO 3-BaTiO 3 based high-T c ferroelectric ceramics: Antiferroelectric chemical modification leading to high energy storage performance. Author links open overlay panel Hongliang Wang, Liang Shu, Liyu Wei, ... As a significant type of dielectric capacitor, ceramic capacitors possess excellent thermal, frequency, and …