中文版 | English
Title

Giant polarization ripple in transverse pyroelectricity

Author
Corresponding AuthorHe,Jiaqing; Ho,Ghim Wei
Publication Years
2023-12-01
DOI
Source Title
EISSN
2041-1723
Volume14Issue:1
Abstract
Pyroelectricity originates from spontaneous polarization variation, promising in omnipresent non-static thermodynamic energy harvesting. Particularly, changing spontaneous polarization via out-of-plane uniform heat perturbations has been shown in solar pyroelectrics. However, these approaches present unequivocal inefficiency due to spatially coupled low temperature change and duration along the longitudinal direction. Here we demonstrate unconventional giant polarization ripples in transverse pyroelectrics, without increasing the total energy input, into electricity with an efficiency of 5-fold of conventional longitudinal counterparts. The non-uniform graded temperature variation arises from decoupled heat localization and propagation, leading to anomalous in-plane heat perturbation (29-fold) and enhanced thermal disequilibrium effects. This in turn triggers an augmented polarization ripple, fundamentally enabling unprecedented electricity generation performance. Notably, the device generates a power density of 38 mW m at 1 sun illumination, which is competitive with solar thermoelectrics and ferrophotovoltaics. Our findings provide a viable paradigm, not only for universal practical pyroelectric heat harvesting but for flexible manipulation of transverse heat transfer towards sustainable energy harvesting and management.
URL[Source Record]
Language
English
Important Publications
NI Journal Papers
SUSTech Authorship
Corresponding
Scopus EID
2-s2.0-85146834878
Data Source
Scopus
Citation statistics
Cited Times [WOS]:0
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/430772
DepartmentDepartment of Physics
工学院_材料科学与工程系
Affiliation
1.Department of Electrical and Computer Engineering,National University of Singapore,Singapore,Singapore
2.Department of Physics,Southern University of Science and Technology,Shenzhen,China
3.School of Electronic Science and Engineering,State Key Laboratory of Electronic Thin Film and Integrated Devices,University of Electronic Science and Technology of China,Chengdu,China
4.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,China
5.Department of Materials Science and Engineering,National University of Singapore,Singapore,Singapore
6.Institute of Materials Research and Engineering,A*STAR (Agency for Science,Technology and Research),Singapore,Singapore
First Author AffilicationDepartment of Physics
Corresponding Author AffilicationDepartment of Physics
Recommended Citation
GB/T 7714
Zhou,Yi,Ding,Tianpeng,Guo,Jun,et al. Giant polarization ripple in transverse pyroelectricity[J]. Nature Communications,2023,14(1).
APA
Zhou,Yi.,Ding,Tianpeng.,Guo,Jun.,Xu,Guoqiang.,Cheng,Mingqiang.,...&Ho,Ghim Wei.(2023).Giant polarization ripple in transverse pyroelectricity.Nature Communications,14(1).
MLA
Zhou,Yi,et al."Giant polarization ripple in transverse pyroelectricity".Nature Communications 14.1(2023).
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