Flexible Piezoelectric Energy Harvesting Circuit With Printable Supercapacitor and Diodes

Juho Pörhönen, Satu Rajala, Suvi Lehtimäki, Sampo Tuukkanen

    Research output: Contribution to journalArticleScientificpeer-review

    27 Citations (Scopus)
    442 Downloads (Pure)


    We report a flexible energy harvesting circuit fabricated by roll-to-roll compatible, solution-processable methods. The circuit incorporates a supercapacitor fabricated from a viscous carbon nanotube dispersion, printed Schottky diodes, and a piezoelectric element. Used low-temperature materials enabled component integration on poly(ethylene terephthalate) substrate. The supercapacitor was built with a paper separator and an aqueous NaCl electrolyte. Together with carbon-based electrodes, these materials translated into a disposable and environmentally safe electronic device. The energy harvested from mechanical movement was used to drive a commercial electrochromic display.

    Translated title of the contributionFlexible Piezoelectric Energy Harvesting Circuit with Printable Supercapacitor and Diodes
    Original languageEnglish
    Pages (from-to)3303-3308
    Number of pages6
    JournalIEEE Transactions on Electron Devices
    Issue number9
    Publication statusPublished - Sept 2014
    Publication typeA1 Journal article-refereed


    • Energy harvesting
    • piezoelectricity
    • printed electronics
    • supercapacitor

    Publication forum classification

    • Publication forum level 3


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