한국분말야금학회지 Vol. 26 No. 2 (p.119-125)

압전 및 비압전 폴리머와 BaTiO3 나노입자로 제조된 유-무기 압전 나노복합체의 발전성능 비교연구

A Comparison Study of Output Performance of Organic-Inorganic Piezoelectric Nanocomposite Made of Piezoelectric/Non-piezoelectric Polymers and BaTiO3 Nanoparticles
키워드 :
Energy harvesting,Piezoelectric,BaTiO3,PVDF,Nanocomposite

목차

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

초록

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.