화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Materials Research, Vol.29, No.6, 371-377, June, 2019
Export Citation
유기-무기 하이브리드 압전 나노복합체 기반의 플렉서블 에너지 하베스터 제작 및 발전성능 평가
Flexible Energy Harvester Made of Organic-Inorganic Hybrid Piezoelectric Nanocomposite
권유정, 현동열, 박귀일†
  • 경북대학교 신소재공학부 금속신소재공학전공
Yu Jeong Kwon, Dong Yeol Hyeon, and Kwi-Il Park†
  • School of Materials Science and Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea
E-mail:
A flexible piezoelectric energy harvester(f-PEH) that converts tiny mechanical and vibrational energy resources into electric signals without any restraints is drawing attention as a self-powered source to operate flexible electronic systems. In particular, the nanocomposites-based f-PEHs fabricated by a simple and low-cost spin-coating method show a mechanically stable and high output performance compared to only piezoelectric polymers or perovskite thin films. Here, the non-piezoelectric polymer matrix of the nanocomposite-based f-PEH is replaced by a P(VDF-TrFE) piezoelectric polymer to improve the output performance generated from the f-PEH. The piezoelectric hybrid nanocomposite is produced by distributing the perovskite PZT nanoparticles inside the piezoelectric elastomer; subsequently, the piezoelectric hybrid material is spin-coated onto a thin metal substrate to achieve a nanocomposite-based f-PEH. A fabricated energy device after a two-step poling process shows a maximum output voltage of 9.4 V and a current of 160 nA under repeated mechanical bending. Finite element analysis(FEA) simulation results support the experimental results.
Keywords:energy harvesting;piezoelectric;PZT;P(VDF-TrFE);nanocomposite
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