Non-planar dielectrics derived thermal and electrostatic field inhomogeneity for boosted weather-adaptive energy harvesting

Zhou，Yi1,2; Ding，Tianpeng2,3; Cheng，Yin2; Huang，Yi1; Wang，Wu1; Yang，Jianmin1,4; Xie，Lin1; Ho，Ghim Wei2,4,5; He，Jiaqing1,6

2023-09-01

10.1093/nsr/nwad186

National Science Review   Impact Factor & Quartile

2095-5138

2053-714X

Weather-adaptive energy harvesting of omnipresent waste heat and rain droplets, though promising in the field of environmental energy sustainability, is still far from practice due to its low electrical output owing to dielectric structure irrationality and unscalability. Here we present atypical upcycling of ambient heat and raindrop energy via an all-in-one non-planar energy harvester, simultaneously increasing solar pyroelectricity and droplet-based triboelectricity by two-fold, in contrast to conventional counterparts. The delivered non-planar dielectric with high transmittance confines the solar irradiance onto a focal hotspot, offering transverse thermal field propagation towards boosted inhomogeneous polarization with a generated power density of 6.1 mW m-2 at 0.2 sun. Moreover, the enlarged lateral surface area of curved architecture promotes droplet spreading/separation, thus travelling the electrostatic field towards increased triboelectricity. These enhanced pyroelectric and triboelectric outputs, upgraded with advanced manufacturing, demonstrate applicability in adaptive sustainable energy harvesting on sunny, cloudy, night, and rainy days. Our findings highlight a facile yet efficient strategy, not only for weather-adaptive environmental energy recovery but also in providing key insights for spatial thermal/electrostatic field manipulation in thermoelectrics and ferroelectrics.

energy harvesting heat manipulation non-planar dielectrics pyroelectrics weather-adaptive

SCI

English

First ; Corresponding

Science & Technology - Other Topics

Multidisciplinary Sciences

WOS:001044965500022

OXFORD UNIV PRESS

2-s2.0-85168760417

Scopus

1.Shenzhen Key Laboratory of Thermoelectric Materials and Department of Physics,Southern University of Science and Technology,Shenzhen,518055,China
2.Department of Electrical and Computer Engineering,National University of Singapore,Singapore,117581,Singapore
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,611731,China
4.Department of Materials Science and Engineering,National University of Singapore,Singapore,117575,Singapore
5.Institute of Materials Research and Engineering,Agency for Science,Technology and Research (ASTAR),Singapore,138634,Singapore
6.Guangdong-Hong Kong-Macao Jt. Lab. for Photonic-Thermal-Electrical Energy Materials and Devices,Southern University of Science and Technology,Shenzhen,518055,China

Zhou，Yi,Ding，Tianpeng,Cheng，Yin,et al. Non-planar dielectrics derived thermal and electrostatic field inhomogeneity for boosted weather-adaptive energy harvesting[J]. National Science Review,2023,10(9).

Zhou，Yi.,Ding，Tianpeng.,Cheng，Yin.,Huang，Yi.,Wang，Wu.,...&He，Jiaqing.(2023).Non-planar dielectrics derived thermal and electrostatic field inhomogeneity for boosted weather-adaptive energy harvesting.National Science Review,10(9).

Zhou，Yi,et al."Non-planar dielectrics derived thermal and electrostatic field inhomogeneity for boosted weather-adaptive energy harvesting".National Science Review 10.9(2023).