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Electrocaloric Effect in Relaxor Ferroelectric-Based Materials
2013Although electrocaloric effect (ECE) has been known for a reasonably long time, it is not until quite recently that the interest has renewed again due to pioneering work by Mischenko et al. (2006).
Jani Peräntie +3 more
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Electrocaloric Effect in Ferroelectric Rochelle Salt
Physical Review, 1963Measurements of the electrocaloric effect in crystalline Rochelle salt throughout the ferroelectric range have been made and have been used to determine the Devonshire "dielectric stiffness" coefficient, the ferroelectric Curie temperatures, and the spontaneous polarization close to both Curie temperatures.
Gordon G. Wiseman, Juergen K. Kuebler
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Positive and negative electrocaloric effects
Chinese Physics BAbstract Electrocaloric effect has attracted considerable attention for providing an eco-friendly and energy-efficient alternative to traditional vapor-compression refrigerators. In this review, we introduce theoretical explanations of positive and negative electrocaloric effects along with their measurements.
Hongrui 洪瑞 Xu 徐 +1 more
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Intrinsic electrocaloric effect in ultrathin ferroelectric capacitors
Applied Physics Letters, 2012Electrocaloric effect in ultrathin SrRuO3/BaTiO3/SrRuO3 capacitors is calculated using a multiscale thermodynamic model. It is found that the electrocaloric coefficient vs working temperature is shifted to higher temperatures with increasing the BaTiO3 layer thickness (above the critical thickness).
Yang Liu +3 more
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Electrocaloric and barocaloric effects in organic materials
2023Electrocaloric (EC) and barocaloric (BC) materials undergo reversible thermal changes in response to changes in applied electric field and pressure, respectively. These materials could potentially be exploited in novel solid-state cooling systems that may replace current vapour-compression systems, which are environmentally harmful, noisy, and ...
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Electrocaloric effect in potassium dihydrogen phosphate
IEEE Transactions on Electron Devices, 1969Measurements of the electrocaloric effect from 78 to 130 K were made on crystalline KH 2 PO 4 and are discussed in terms of the phenomenological theory of Devonshire and others. The predicted quadratic dependence of the electrocaloric effect upon applied field (and polarization) in the paraelectric phase was shown to occur; however, the constant of ...
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Thermodynamics of electrocaloric effect
2023Ivan A. Starkov, Alexander S. Starkov
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Electrocaloric Effect of Ferroelectrics and Relaxors
2018Since the discovery of the giant electrocaloric effect in PbZr0.95Ti0.05O3, the electrocaloric effect of ferroelectrics has received increasing research interest and has been demonstrated to have great potential for cooling application. For successful implementation and commercialization of electrocaloric refrigeration, it is necessary to reveal the ...
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Electrocaloric effect in low-crystallinity ferroelectric polymers
Applied Physics Letters, 2012The role of the sample crystallinity on the electrocaloric effect (ECE) of ferroelectric polymers was investigated in miscible blends of poly(vinylidene fluoride-trifluoroethylene) and poly(methyl methacrylate). Polarization switching measurements gave the electric field required to realize full dipole realignment.
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Electrocaloric effects in ferroelectric polymers
2022Heng Cui, Wen He, Qibing Pei, Rujun Ma
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