Matrix-assisted energy conversion in nanostructured piezoelectric arrays

Xianying Wang, Kanguk Kim, Yinmin Wang, Michael Stadermann, Aleksandr Noy, Alex V. Hamza, Junhe Yang, Donald J. Sirbuly

Research output: Contribution to journalArticlepeer-review

38 Scopus citations


We demonstrate an organic/inorganic hybrid energy-harvesting platform, based on nanostructured piezolelectric arrays embedded in an environmental-responsive polymer matrix, which can self-generate electrical power by scavenging energy from the environment. A proof of principle device is designed, fabricated, and tested using vertically aligned ZnO nanowires and heat as the local energy source. The device layout takes advantage of the collective stretching motion of piezoelectric ZnO NWs, induced by the shape-change of the matrix polymer, to convert the thermal energy into direct current with output power densities of ∼20 nW/cm2 at a heating temperature of ∼65 °C. The responsive nature of polymeric matrices to various stimuli makes this nanostructured piezoelectric architecture a highly versatile approach to scavenging energy from a multitude of environments including fluid-based and chemical-rich systems.

Original languageEnglish (US)
Pages (from-to)4901-4907
Number of pages7
JournalNano Letters
Issue number12
StatePublished - Dec 8 2010
Externally publishedYes


  • Energy-conversion
  • hybrid nanogenerator
  • piezoelectric
  • Seebeck effect
  • Si
  • ZnO

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanical Engineering


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