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Nanogenerator-based dual-functional and self-powered thin patch loudspeaker or microphone for flexible electronics

Author

Listed:
  • Wei Li

    (Michigan State University)

  • David Torres

    (Michigan State University)

  • Ramón Díaz

    (Michigan State University)

  • Zhengjun Wang

    (School of Materials Science and Engineering, Georgia Institute of Technology)

  • Changsheng Wu

    (School of Materials Science and Engineering, Georgia Institute of Technology)

  • Chuan Wang

    (Michigan State University)

  • Zhong Lin Wang

    (School of Materials Science and Engineering, Georgia Institute of Technology)

  • Nelson Sepúlveda

    (Michigan State University
    Michigan State University)

Abstract

Ferroelectret nanogenerators were recently introduced as a promising alternative technology for harvesting kinetic energy. Here we report the device’s intrinsic properties that allow for the bidirectional conversion of energy between electrical and mechanical domains; thus extending its potential use in wearable electronics beyond the power generation realm. This electromechanical coupling, combined with their flexibility and thin film-like form, bestows dual-functional transducing capabilities to the device that are used in this work to demonstrate its use as a thin, wearable and self-powered loudspeaker or microphone patch. To determine the device’s performance and applicability, sound pressure level is characterized in both space and frequency domains for three different configurations. The confirmed device’s high performance is further validated through its integration in three different systems: a music-playing flag, a sound recording film and a flexible microphone for security applications.

Suggested Citation

  • Wei Li & David Torres & Ramón Díaz & Zhengjun Wang & Changsheng Wu & Chuan Wang & Zhong Lin Wang & Nelson Sepúlveda, 2017. "Nanogenerator-based dual-functional and self-powered thin patch loudspeaker or microphone for flexible electronics," Nature Communications, Nature, vol. 8(1), pages 1-9, August.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms15310
    DOI: 10.1038/ncomms15310
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    Cited by:

    1. Lin Xu & Md Al Mahadi Hasan & Heting Wu & Ya Yang, 2021. "Electromagnetic–Triboelectric Hybridized Nanogenerators," Energies, MDPI, vol. 14(19), pages 1-27, September.

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