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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.creator Peng, Biaolin
dc.creator Zhang, Qi
dc.creator Lyu, Yinong
dc.creator Liu, Laijun
dc.creator Lou, Xiaojie
dc.creator Shaw, Christopher
dc.creator Huang, Haitao
dc.creator Wang, Zhonglin
dc.date 2018-08-03T14:29:17Z
dc.date 2018-08-03T14:29:17Z
dc.date 2018-03-08
dc.date.accessioned 2022-05-25T16:37:28Z
dc.date.available 2022-05-25T16:37:28Z
dc.identifier Biaolin 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 285-293
dc.identifier 2211-2855
dc.identifier https://doi.org/10.1016/j.nanoen.2018.03.003
dc.identifier http://dspace.lib.cranfield.ac.uk/handle/1826/13375
dc.identifier 20511244
dc.identifier.uri http://localhost:8080/xmlui/handle/CUHPOERS/182233
dc.description Ferroelectric/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.
dc.language en
dc.publisher Elsevier
dc.rights Attribution-NonCommercial-NoDerivatives 4.0 International
dc.rights http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject Electrocaloric
dc.subject Antiferroelectric
dc.subject Relaxor
dc.subject Thin film
dc.subject Sol-gel
dc.title 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
dc.type Article


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