Advanced Materials

Flexible Nanocomposite Generator Made of BaTiO3 Nanoparticles and Graphitic Carbons

Authors

  • Kwi-Il Park,

    1. Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Republic of Korea
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  • Minbaek Lee,

    1. School of Materials Science and Engineering, Georgia Institute of Technology, 771 Ferst drive, Atlanta, Georgia, 30332-0245, USA
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  • Ying Liu,

    1. School of Materials Science and Engineering, Georgia Institute of Technology, 771 Ferst drive, Atlanta, Georgia, 30332-0245, USA
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  • San Moon,

    1. Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Republic of Korea
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  • Geon-Tae Hwang,

    1. Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Republic of Korea
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  • Guang Zhu,

    1. School of Materials Science and Engineering, Georgia Institute of Technology, 771 Ferst drive, Atlanta, Georgia, 30332-0245, USA
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  • Ji Eun Kim,

    1. Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Republic of Korea
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  • Sang Ouk Kim,

    1. Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Republic of Korea
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  • Do Kyung Kim,

    1. Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Republic of Korea
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  • Zhong Lin Wang,

    1. School of Materials Science and Engineering, Georgia Institute of Technology, 771 Ferst drive, Atlanta, Georgia, 30332-0245, USA
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  • Keon Jae Lee

    Corresponding author
    1. Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Republic of Korea
    • Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Republic of Korea.
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Abstract

A nanocomposite generator (NCG) is fabricated using piezoelectric BaTiO3 nanoparticles and universal graphitic carbons (carbon nanotubes and reduced graphene oxide). A piezoelectric nanocomposite is produced by the simple process of dispersing nanoparticles and carbon-based nanomaterials in a polydimethylsiloxane matrix and subsequent spin-casting onto a metal-coated plastic substrate. The NCG device generates an output voltage of ∼3.2 V and a current of ∼350 nA under periodic mechanical deformation to a strain of 0.33%. The generated electric energy is stored in capacitors and used to light up a commercial light-emitting diode.

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