Flexible nanocomposite generator made of BaTiO 3 nanoparticles and graphitic carbons

Kwi Il Park, Minbaek Lee, Ying Liu, San Moon, Geon Tae Hwang, Guang Zhu, Ji Eun Kim, Sang Ouk Kim, Do Kyung Kim, Zhong Lin Wang, Keon Jae Lee

Research output: Journal PublicationArticlepeer-review

386 Citations (Scopus)


A nanocomposite generator (NCG) is fabricated using piezoelectric BaTiO 3 nanoparticles and universal graphitic carbons (carbon nanotubes and reduced graphene oxide). A piezoelectric nanocomposite is produced by the simple process of dispersing nanoparticles and carbon-based nanomaterials in a polydimethylsiloxane matrix and subsequent spin-casting onto a metal-coated plastic substrate. The NCG device generates an output voltage of ∼3.2 V and a current of ∼350 nA under periodic mechanical deformation to a strain of 0.33%. The generated electric energy is stored in capacitors and used to light up a commercial light-emitting diode.

Original languageEnglish
Pages (from-to)2999-3004
Number of pages6
JournalAdvanced Materials
Issue number22
Publication statusPublished - 12 Jun 2012
Externally publishedYes


  • BaTiO nanoparticles
  • carbon nanotubes
  • energy harvesting
  • nanocomposite generators
  • reduced graphene oxides

ASJC Scopus subject areas

  • Materials Science (all)
  • Mechanics of Materials
  • Mechanical Engineering


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