Tailoring the electrocaloric effect of Pb0.78Ba0.2La0.02ZrO3 relaxor thin film by GaN substrates

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dc.contributor.authorPeng, Biaolin
dc.contributor.authorJiang, Jintao
dc.contributor.authorTang, Silin
dc.contributor.authorZhang, Miaomiao
dc.contributor.authorLiu, Laijun
dc.contributor.authorZou, Bingsuo
dc.contributor.authorLeighton, Glenn J. T.
dc.contributor.authorShaw, Christopher
dc.contributor.authorLuo, Nengneng
dc.contributor.authorZhang, Qi
dc.contributor.authorSun, Wenhong
dc.date.accessioned2020-01-17T13:58:08Z
dc.date.available2020-01-17T13:58:08Z
dc.date.issued2019-11-06
dc.description.abstractThe electrocaloric (EC) effect in ferroelectric/antiferroelectric thin films has been widely investigated due to its potential applications in solid state cooling devices. It is demonstrated that the EC effect of the Pb0.78Ba0.2La0.02ZrO3 (PBLZ) relaxor thin films prepared by using a sol–gel method strongly depends on the substrates. The maximum ΔT of PBLZ thin films deposited on Pt(111)/TiOx/SiO2/Si(100) (Pt), LaNiO3/Pt(111)/TiOx/SiO2/Si(100) (LaNiO3/Pt), LaNiO3/n-type GaN (LaNiO3/n-GaN) and LaNiO3/p-type GaN (LaNiO3/p-GaN) substrates is ∼13.08 K, 16.46 K, 18.70 K, and 14.64 K, respectively. Moreover, negative EC effects in a broad temperature range (∼340 K to 440 K) could be obtained in the thin films deposited on LaNiO3/n-GaN and LaNiO3/p-GaN substrates, which is ascribed to higher proportions of orthorhombic antiferroelectric phase to rhombohedral ferroelectric phase induced by the GaN substrates. These results indicate that tailoring the EC effects by changing the substrates could provide a new strategy in designing an EC cooling device with high cooling efficiency.en_UK
dc.identifier.citationPeng B, Jiang J, Tang S, et al., (2019) Tailoring the electrocaloric effect of Pb0.78Ba0.2La0.02ZrO3 relaxor thin film by GaN substrates. Journal of Materials Chemistry C, Volume 7, Issue 45, 2019, Article number 14109en_UK
dc.identifier.issn2050-7526
dc.identifier.urihttps://doi.org/10.1039/C9TC05208A
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/14945
dc.language.isoenen_UK
dc.publisherRoyal Society of Chemistryen_UK
dc.rightsAttribution-NonCommercial 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.subjectelectrocaloric effecten_UK
dc.subjectthin filmen_UK
dc.subjectPBLZen_UK
dc.subjectsubstrateen_UK
dc.titleTailoring the electrocaloric effect of Pb0.78Ba0.2La0.02ZrO3 relaxor thin film by GaN substratesen_UK
dc.typeArticleen_UK

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