Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Recent Development in Performance Enhancement of PVDF-Nanopowder Composite-based Energy Harvesting Devices

나노 분말 복합체 형성을 통한 PVDF 기반 에너지 하베스팅 소자 성능 향상 기술 동향

  • Choi, Geon-Ju (Department of Materials Science and Engineering, Seoul National University of Science and Technology) ;
  • Park, Il-Kyu (Department of Materials Science and Engineering, Seoul National University of Science and Technology)
  • 최건주 (서울과학기술대학교 신소재공학과) ;
  • 박일규 (서울과학기술대학교 신소재공학과)
  • Received : 2020.06.08
  • Accepted : 2020.06.14
  • Published : 2020.06.28
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Abstract

Recently, interest in technology for eco-friendly energy harvesting has been increasing. Polyvinylidene fluoride (PVDF) is one of the most fascinating materials that has been used in energy harvesting technology as well as micro-filters by utilizing an electrostatic effect. To enhance the performance of the electrostatic effect-based nanogenerator, most studies have focused on enlarging the contact surface area of the pair of materials with different triboelectric series. For this reason, one-dimensional nanofibers have been widely used recently. In order to realize practical energy-harvesting applications, PVDF nanofibers are modified by enlarging their contact surface area, modulating the microstructure of the surface, and maximizing the fraction of the ν-phase by incorporating additives or forming composites with inorganic nanoparticles. Among them, nanocomposite structures incorporating various nanoparticles have been widely investigated to increase the β-phase through strong hydrogen bonding or ion-dipole interactions with -CF2/CH2- of PVDF as well as to enhance the mechanical strength. In this study, we report the recent advances in the nanocomposite structure of PVDF nanofibers and inorganic nanopowders.

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