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나노물질 및 화학반응 연구단
나노물질 및 화학반응 연구단
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Ferroelectric-Polymer-Enabled Contactless Electric Power Generation in Triboelectric Nanogenerators

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Title
Ferroelectric-Polymer-Enabled Contactless Electric Power Generation in Triboelectric Nanogenerators
Author(s)
Hyun Soo Kim; Dong Yeong Kim; Jae-Eun Kim; Jong Hun Kim; Dae Sol Kong; Gonzalo Murillo; Gwan-Hyoung Lee; Jeong Young Park; Jong Hoon Jung
Publication Date
2019-11
Journal
ADVANCED FUNCTIONAL MATERIALS, v.29, no.45, pp.1905816 -
Publisher
WILEY-V C H VERLAG GMBH
Abstract
© 2019 WILEY-VCH Verlag GmbH & Co. KGaA, WeinheimTriboelectric nanogenerators (TENGs) are considered as one of the most important renewable power sources for mobile electronic devices and various sensors in the Internet of Things era. However, their performance should inherently be degraded by the wearing of contact surfaces after long-term use. Here, a ferroelectric polymer is shown to enable TENGs to generate considerable electricity without contact. Ferroelectric-polymer-embedded TENG (FE-TENG) consists of indium tin oxide (ITO) electrodes, a polydimethylsiloxane (PDMS) elastomer, and a poly(vinylidene fluoride) (PVDF) polymer. In contrast to down- and non-polarization, up-polarized PVDF causes significantly large triboelectric charge, rapidly saturated voltage/current, and considerable remaining charge due to the modulated surface potential and increased capacitance. The remained triboelectric charges flow by just approaching/receding the ITO electrode to/from the PDMS without contact, which is sufficient to power light-emitting diodes and liquid crystal displays. Additionally, the FE-TENG can charge an Li-battery with a significantly reduced number of contact cycles. Furthermore, an arch-shaped FE-TENG is demonstrated to operate a wireless temperature sensor network by scavenging the irregular and random vibrations of water waves. This work provides an innovative and simple method to increase conversion efficiency and lifetime of TENGs; which widens the applications of TENG to inaccessible areas like the ocean
URI
https://pr.ibs.re.kr/handle/8788114/6817
ISSN
1616-301X
Appears in Collections:
Center for Nanomaterials and Chemical Reactions(나노물질 및 화학반응 연구단) > Journal Papers (저널논문)
Files in This Item:
Adv. Funct. Mater.2019, 29, 1905816.pdfDownload

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