Thermal strain induced large electrocaloric effect of relaxor thin film on LaNiO3/Pt composite electrode with the coexistence of nanoscale antiferroelectric and ferroelectric phases in a broad temperature range

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dc.contributor.authorPeng, Biaolin
dc.contributor.authorZhang, Qi
dc.contributor.authorLyu, Yinong
dc.contributor.authorLiu, Laijun
dc.contributor.authorLou, Xiaojie
dc.contributor.authorShaw, Christopher
dc.contributor.authorHuang, Haitao
dc.contributor.authorWang, Zhonglin
dc.date.accessioned2018-08-03T14:29:17Z
dc.date.available2018-08-03T14:29:17Z
dc.date.issued2018-03-08
dc.description.abstractFerroelectric/antiferroelectric thin/thick films with large electrocaloric (EC) effect in a broad operational temperature range are very attractive in solid-state cooling devices. We demonstrated that a large positive electrocaloric (EC) effect (maximum ΔT ~ 20.7 K) in a broad temperature range (~ 110 K) was realized in Pb0.97La0.02(Zr0.65Sn0.3Ti0.05)O3 (PLZST) relaxor antiferroelectric (AFE) thin film prepared using a sol-gel method. The large positive EC effect may be ascribed to the in-plane residual thermal tensile stress during the layer-by-layer annealing process, and the high-quality film structure owing to the utilization of the LaNiO3/Pt composite bottom electrode. The broad EC temperature range may be ascribed to the great dielectric relaxor dispersion around the dielectric peak because of the coexistence of nanoscale multiple FE and AFE phases. Moreover, a large pyroelectric energy density (6.10 Jcm−3) was harvested by using an Olsen cycle, which is much larger than those (usually less than 10− Jcm−3) obtained by using direct thermal-electrical, Stirling and Carnot cycles, etc. These breakthroughs enable the PLZST thin film an attractive multifunctional material for applications in modern solid-state cooling and energy harvesting.en_UK
dc.identifier.citationBiaolin Peng, Qi Zhang, Yinong Lyu, et al., Thermal strain induced large electrocaloric effect of relaxor thin film on LaNiO3/Pt composite electrode with the coexistence of nanoscale antiferroelectric and ferroelectric phases in a broad temperature range. Nano Energy, Volume 47, May 2018, Pages 285-293en_UK
dc.identifier.cris20511244
dc.identifier.issn2211-2855
dc.identifier.urihttps://doi.org/10.1016/j.nanoen.2018.03.003
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/13375
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectElectrocaloricen_UK
dc.subjectAntiferroelectricen_UK
dc.subjectRelaxoren_UK
dc.subjectThin filmen_UK
dc.subjectSol-gelen_UK
dc.titleThermal strain induced large electrocaloric effect of relaxor thin film on LaNiO3/Pt composite electrode with the coexistence of nanoscale antiferroelectric and ferroelectric phases in a broad temperature rangeen_UK
dc.typeArticleen_UK

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