Foldable RF Energy Harvesting System Based on Vertically Layered Metal Electrodes within a Single Sheet of Paper

In Hyeok Oh; Eiyong Park; Suk Tai ChangSungjoon Lim

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Foldable RF Energy Harvesting System Based on Vertically Layered Metal Electrodes within a Single Sheet of Paper

机译：Foldable RF Energy Harvesting System Based on Vertically Layered Metal Electrodes within a Single Sheet of Paper

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Radio frequency energy harvesting (RFEH) systems have emerged as a criticalcomponent for powering devices and replacing traditional batteries, withpaper being one of the most promising substrates for use in flexible RFEHsystems. However, previous paper-based electronics with optimized porosity,surface roughness, and hygroscopicity still face limitations in terms of thedevelopment of integrated foldable RFEH systems within a single sheet ofpaper. In the present study, a novel wax-printing control and water-basedsolution process are used to realize an integrated foldable RFEH systemwithin a single sheet of paper. The proposed paper-based device includesvertically layered foldable metal electrodes, a via-hole, and stable conductivepatterns with a sheet resistance of less than 1 Ω sq~(?1). The proposed RFEHsystem exhibits an RF/DC conversion efficiency of 60 and an operatingvoltage of 2.1 V in 100 s at a distance of 50 mm and a transmitted power of50 mW. The integrated RFEH system also demonstrates stable foldability,with RFEH performance maintained up to a folding angle of 150°. The singlesheetpaper-based RFEH system thus has the potential for use in practicalapplications associated with the remote powering of wearable and Internetof-Things devices and in paper electronics.

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来源
《Advanced Materials》 |2023年第20期|2300197.1-2300197.10|共10页
作者
In Hyeok Oh; Eiyong Park; Suk Tai ChangSungjoon Lim;
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作者单位

School of Chemical Engineering and Materials ScienceChung-Ang University84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea;

School of Electrical and Electronics EngineeringChung-Ang University84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea;

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正文语种英语
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energy storage devices; foldable radio frequency energy harvesting systems; hydrophobic wax printing; paper-based supercapacitors; vertically layered electrodes;

Foldable RF Energy Harvesting System Based on Vertically Layered Metal Electrodes within a Single Sheet of Paper

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