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    Article

    Synergy of Polydopamine-Assisted Additive Modification and Hierarchical-Morphology Poly(Vinylidene Fluoride) Nanofiber Mat for Ferroelectric-Assisted Triboelectric Nanogenerator

    In the last decade, numerous physical modification methods have been introduced to enhance triboelectric nanogenerator (TENG) performance although they generally require complex and multiple fabrication proces...

    Junseo Gu, Donghyun Lee, Jeonghoon Oh, Hyeokjun Si, Kwanlae Kim in Advanced Fiber Materials (2024)

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    Article

    Flutter-Driven Piezoelectric Wind Energy Harvesting System Based on PVDF Nanofiber for Low Power Applications

    With the increase of low-powered electronic devices, there is growing social interest in environmentally friendly energy sources capable of replacing batteries. In this study, a flutter-driven piezoelectric na...

    Junseo Gu, Donghyun Lee, Heesung Park in International Journal of Precision Enginee… (2024)

  3. Article

    Open Access

    Engineered kirigami design of PVDF-Pt core–shell nanofiber network for flexible transparent electrode

    Nanofiber networks comprising polymer-metal core–shell structures exhibit several advantages, such as high uniformities and considerable flexibilities. Additionally, the flexibility of the nanofiber network ma...

    Heesung Park, Hyeokjun Si, Junseo Gu, Donghyun Lee, Donghyuck Park in Scientific Reports (2023)

  4. Article

    Open Access

    Simultaneous acquisition of current and lateral force signals during AFM for characterising the piezoelectric and triboelectric effects of ZnO nanorods

    Atomic force microscopy (AFM) is central to investigating the piezoelectric potentials of one-dimensional nanomaterials. The AFM probe is used to deflect individual piezoelectric nanorods and to measure the re...

    Yijun Yang, Kwanlae Kim in Scientific Reports (2021)