A high energy density relaxor antiferroelectric pulsed capacitor dielectric

Jo, Hwan R.; Lynch, Christopher S.

doi:10.1063/1.4939617

Cited by 130 publications

(51 citation statements)

References 55 publications

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“…Figure A‐C show the frequency ( f )‐dependent P‐E loops taken at room temperature. The curves were stable for 10 kHz ≤ f ≤ 100 kHz in all three oriented films, which show their capabilities of the working frequency range of typical pulsed capacitor devices . The changes in the P‐E loops at lower frequencies are probably caused by leakage currents with decreasing AC frequencies .…”

Section: Resultsmentioning

confidence: 64%

“…La 3+ doping onto the Pb 2+ site is an effective way to stabilize the AFE orthorhombic (O) phase of PZT to higher titanium contents, over a FE rhombohedral (R) phase. Ten‐millimeter thick (Pb 0.88 , La 0.08 )(Zr 0.91 , Ti 0.09 )O 3 (PLZT, 8/91/9) ceramics have been reported to have a recoverable energy storage density of 3 J/cm 3 , with an efficiency of 92% at an E‐field of 180 kV/cm …”

Section: Introductionmentioning

confidence: 99%

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Phase transition and energy storage behavior of antiferroelectric PLZT thin films epitaxially deposited on SRO buffered STO single crystal substrates

et al. 2019

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(Pb0.98, La0.02)(Zr0.95, Ti0.05)O3 (PLZT) thin films of 300 nm thickness were epitaxially deposited on (100), (110), and (111) SrTiO3 single crystal substrates by pulsed laser deposition. X‐ray diffraction line and reciprocal space mapping scans were used to determine the crystal structure. Tetragonal ((001) PLZT) and monoclinic MA ((011) and (111) PLZT) structures were found, which influenced the stored energy density. Electric field‐induced antiferroelectric to ferroelectric (AFE→FE) phase transitions were found to have a large reversible energy density of up to 30 J/cm3. With increasing temperature, an AFE to relaxor ferroelectric (AFE→RFE) transition was found. The RFE phase exhibited lower energy loss, and an improved energy storage efficiency. The results are discussed from the perspective of crystal structure, dielectric phase transitions, and energy storage characteristics. Besides, unipolar drive was also performed, providing notably higher energy storage efficiency values due to low energy losses.

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Section: Resultsmentioning

confidence: 64%

Section: Introductionmentioning

confidence: 99%

Phase transition and energy storage behavior of antiferroelectric PLZT thin films epitaxially deposited on SRO buffered STO single crystal substrates

et al. 2019

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“…The slope is a parameter which is related to the capacitance of CB80, the parasitic resistance and inductance of the circuit, according to equation (4). Fig.…”

Section: Resultsmentioning

confidence: 99%

“…Generally, the energy density of AFEs is higher than those of FEs and linear dielectrics because the total stored charges can be released due to the absence of any remnant polarization. 3 Many efforts [4][5][6][7] have been made to investigate the energy store performance of these dielectric materials and improve the energy density.…”

Section: Introductionmentioning

confidence: 99%

Pulse discharge properties of PLZST antiferroelectric ceramics compared with ferroelectric and linear dielectrics

Liu

Chen

et al. 2017

AIP Advances

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The pulse discharge properties of lead lanthanum zirconate stannate titanate (PLZST) antiferroelectric (AFE) ceramics, ferroelectric (FE) dielectrics, and linear dielectrics were compared in this paper. It is found that as the voltage increases, those three types of dielectrics display three different voltage-dependent regularities: the peak current (Imax) of linear dielectrics increases linearly with increasing voltage; the Imax of FE dielectrics rises up with a gradually declined increase rate; the Imax of PLZST AFE ceramics presents a three-stage growth and during the third stage, the regularity is similar with that of FE dielectrics. Furthermore, three advantages of PLZST AFE ceramics for pulse discharge can be determined: a large increase rate of Imax due the field-forced AFE-FE phase transition, a great enhanced power density and a relatively short discharge period time. These results would pave the way for understanding and utilizing AFE ceramics in pulse power application.

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“…Hwan et al developed (Pb 0.88 La 0.08 )(Zr 0.91 Ti 0.09 )O 3 AFE ceramics with a high recoverable energy density of 3.04 J/cm 3 and efficiency of 92%. The obtained ceramics are also with good temperature stability and can be cycled at repeated electric field over 10 000 times without degradation of performance . Till now, the largest energy density in AFE bulks is 6.04 J/cm 3 achieved in (Pb 0.858 Ba 0.1 La 0.02 Y 0.008 )(Zr 0.65 Sn 0.3 Ti 0.05 )O 3 –(Pb 0.97 La 0.02 )(Zr 0.9 Sn 0.05 Ti 0.05 )O 3 ceramics via spark plasma sintering.…”

Section: Introductionmentioning

confidence: 96%

PLZST antiferroelectric ceramics with promising energy storage and discharge performance for high power applications

Zhu

et al. 2019

J Am Ceram Soc

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Capacitors are widely used as energy storage elements in electric vehicles (EVs) and pulsed power. At present, it is still challenging to develop capacitor dielectrics with good energy storage and discharge performance. In this work, antiferroelectric (AFE) ceramics (Pb0.94La0.04)[(Zr0.6Sn0.4)0.92Ti0.08]O3 with enhanced antiferroelectricity were fabricated by a rolling process. The obtained ceramics have a high recoverable energy density of 5.2 J/cm3 and an extremely high efficiency of 91.2% at 327 kV/cm. The ceramics have good energy storage and discharge performance in the temperature range from −40°C to 100°C due to the existence of AFE phase. An energy density of 3.7 J/cm3 can be released at 200 kV/cm in less than 500 ns and the discharge current keeps stable after 1000 charge‐discharge cycles. By direct short experiment, a current density of 1657 A/cm2, which is the highest result in recently developed AFE ceramics, and a power density of 228 MW/cm3 were achieved. The possibility of using AFEs at low temperature was confirmed. The excellent energy storage and discharge performance prove the great potential of the obtained ceramics in high energy and power density applications.

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A high energy density relaxor antiferroelectric pulsed capacitor dielectric

Cited by 130 publications

References 55 publications

Phase transition and energy storage behavior of antiferroelectric PLZT thin films epitaxially deposited on SRO buffered STO single crystal substrates

Phase transition and energy storage behavior of antiferroelectric PLZT thin films epitaxially deposited on SRO buffered STO single crystal substrates

Pulse discharge properties of PLZST antiferroelectric ceramics compared with ferroelectric and linear dielectrics

PLZST antiferroelectric ceramics with promising energy storage and discharge performance for high power applications

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