High Temperature, High Energy Density Dielectrics for Power Electronics Applications

Shay, Dennis P.; Randall, Clive A.

doi:10.4271/2012-01-2208

Cited by 3 publications

(1 citation statement)

References 28 publications

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“…Nevertheless, the low driving electric field will limit the achievement of higher energy density. Recently, new linear dielectric systems, represented by Ca(Zr,Ti)O 3 with wide band gap and low temperature coefficient of capacitance, demonstrate high dielectric breakdown strength (150 kV/mm for capacitors with ceramic dielectric layers of 10 μm thickness), low energy loss (<0.1%) at elevated temperature and driving electric field (and minimal dielectric variation over a wide temperature and frequency range (TCC ~40 ppm/°C), being regarded as potential dielectric candidates for energy storage applications …”

Section: Introductionmentioning

confidence: 99%

Defect structure‐electrical property relationship in Mn‐doped calcium strontium titanate dielectric ceramics

et al. 2017

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Ca 0.6 Sr 0.4 TiO 3 (CST) ceramics with different amounts of Mn dopant (0-2.0 mol%) were prepared by solid-state reaction method. The electric field and temperature stability of energy storage performance was found to be greatly enhanced with moderate doped level of 0.5 mol%. The dielectric loss-frequency spectra revealed the existence and evolution of defect dipoles at elevated temperature, which was confirmed directly by electron paramagnetic resonance (EPR) spectra. The response of defect dipoles was characterized by thermally stimulated depolarization current (TSDC), where the activation energy and the concentration evolution of defect dipoles were calculated, with the highest values observed for 0.5% doped samples. The dissociation of defect dipoles and the movement of free V ÁÁ O were analyzed by high-temperature impedance spectra analysis, with the activation energy of 1.04-1.60 eV, and 0.5% doped samples also demonstrated the highest E a . The relationship between microscopic defect structure and macroscopic electrical behavior was established in this work. K E Y W O R D Sdefects, dielectric materials/properties, electrical properties, impedance spectroscopy, vacancies

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Section: Introductionmentioning

confidence: 99%

Defect structure‐electrical property relationship in Mn‐doped calcium strontium titanate dielectric ceramics

et al. 2017

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Optimized microstructure and enhanced breakdown strength in Ca<inf>1−x</inf>Sr<inf>x</inf>TiO<inf>3</inf> solid solutions

Zhang

Liu

Hao

et al. 2015

2015 Joint IEEE International Symposium on the Applications of Ferroelectric (ISAF), International Symposium on Integrated Func

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Dielectric properties and relaxation behavior in Mn-doped Ca<inf>0.6</inf>Sr<inf>0.4</inf>TiO<inf>3</inf> ceramics for energy storage

Zhang

Xie

et al. 2016

2016 Joint IEEE International Symposium on the Applications of Ferroelectrics, European Conference on Application of Polar Diel

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High Temperature, High Energy Density Dielectrics for Power Electronics Applications

Cited by 3 publications

References 28 publications

Defect structure‐electrical property relationship in Mn‐doped calcium strontium titanate dielectric ceramics

Defect structure‐electrical property relationship in Mn‐doped calcium strontium titanate dielectric ceramics

Optimized microstructure and enhanced breakdown strength in Ca<inf>1−x</inf>Sr<inf>x</inf>TiO<inf>3</inf> solid solutions

Dielectric properties and relaxation behavior in Mn-doped Ca<inf>0.6</inf>Sr<inf>0.4</inf>TiO<inf>3</inf> ceramics for energy storage

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High Temperature, High Energy Density Dielectrics for Power Electronics Applications

Cited by 3 publications

References 28 publications

Defect structure‐electrical property relationship in Mn‐doped calcium strontium titanate dielectric ceramics

Defect structure‐electrical property relationship in Mn‐doped calcium strontium titanate dielectric ceramics

Optimized microstructure and enhanced breakdown strength in Ca<inf>1&#x2212;x</inf>Sr<inf>x</inf>TiO<inf>3</inf> solid solutions

Dielectric properties and relaxation behavior in Mn-doped Ca<inf>0.6</inf>Sr<inf>0.4</inf>TiO<inf>3</inf> ceramics for energy storage

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Product

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Optimized microstructure and enhanced breakdown strength in Ca<inf>1−x</inf>Sr<inf>x</inf>TiO<inf>3</inf> solid solutions