Piezoelectric energy harvesting technology is attracting attention, as it can be used to convert more accessible mechanical energy resources to periodic electricity. Recent developments in the field of piezoelectric energy harvesters (PEHs) are associated with nanocomposites made from inorganic piezoelectric nanomaterials and organic elastomers. Here, we used the BaTiO3 nanoparticles and piezoelectric poly(vinylidene fluoride) (PVDF) polymeric matrix to fabricate the nanocomposites-based PEH to improve the output performance of PEHs. The piezoelectric nanocomposite is produced by dispersing the inorganic piezo-ceramic nanoparticles inside an organic piezo-polymer and subsequently spin-coat it onto a metal plate. The fabricated organic-inorganic piezoelectric nanocomposite-based PEH harvested the output voltage of ~1.5 V and current signals of ~90 nA under repeated mechanical pushings: these values are compared to those of energy devices made from non-piezoelectric polydimethylsiloxane (PDMS) elastomers and supported by a multiphysics simulation software.

Abstract
 1. 서 론
 2. 실험방법
  2.1. BaTiO3 압전 나노입자 제조
  2.2. 압전 나노복합소재 제조 및 에너지 하베스터 제작
  2.3. 생성 전압 및 전류 신호 측정
 3. 결과 및 고찰
 4. 결 론
 References

• 현동열(경북대학교 신소재공학부) | Dong Yeol Hyeon (School of Materials Science and Engineering, Kyungpook National University)
• 박귀일(경북대학교 신소재공학부) | Kwi-Il Park (School of Materials Science and Engineering, Kyungpook National University) Corresponding Author