Giant electrocaloric effect in the thin film relaxor ferroelectric 0.9 PbMg(1/3)Nb(2/3)O(3)-0.1 PbTiO(3) near room temperature
By A. Mischenko, Qi Zhang, R. Whatmore, J. Scott, N. Mathur. 2006
353 citations recorded by the source corpus.
The authors have recently observed a giant electrocaloric effect (12K in 25V) in 350nm sol-gel PbZr0.95Ti0.05O3 films near the ferroelectric Curie temperature of 242°C. Here the authors demonstrate a giant electrocaloric effect (5K in 25V) in 260nm sol-gel films of the relaxor ferroelectric 0.9PbMg1∕3Nb2∕3O3–0.1PbTiO3 near the Curie temperature of 60°C. This reduction in operating temperature widens the potential for applications in cooling systems.
Subfields: Biomedical Engineering, Electronic, Optical and Magnetic Materials, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/58b927b82eebc018ecf28f5e82d3cc4186954252
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Citations in the corpus
- On thermoelectric and pyroelectric energy harvesting (2009, neutral): “10PbTiO3 thin film TF 15 90 75 4320 [15]”
- Pyroelectric energy harvesting using Olsen cycles in purified and porous poly(vinylidene fluoride-trifluoroethylene) [P(VDF-TrFE)] thin films (2011, methodology): “The authors calculated a 5 K temperature rise as the electric field increased from 588 to 895 kV cm−1 near the Curie temperature of 60 ◦C. Similarly, studies on 210 nm thick 0.93PMN–0.07PT films predicted a 9 K temperature rise for electric field between 0 and 723 kV cm−1 near 25 ◦C [27].”
- Electrocaloric effect of PMN-PT thin films near morphotropic phase boundary (2009, methodology): “EC effect was hence considered to be too weak for practical applications, until recently when Mischenko et al (2006a) reported a giant electrocaloric effect in perovskite PZT thin films with an adiabatic temperature change, ΔT = 12 K at a maximum applied voltage of 25 V i.e. EC effect = 0⋅48 KV–1…”