1.6 v nanogenerator for mechanical energy harvesting using PZT nanofibers

Xi Chen, Shiyou Xu, Nan Yao, Yong Shi

Research output: Contribution to journalArticlepeer-review

806 Scopus citations


Energy harvesting technologies that are engineered to miniature sizes, while still increasing the power delivered to wireless electronics, 1,2 portable devices, stretchable electronics,3 and implantable biosensors,4,5 are strongly desired. Piezoelectric nanowire- and nanofiber-based generators have potential uses for powering such devices through a conversion of mechanical energy into electrical energy. 6 However, the piezoelectric voltage constant of the semiconductor piezoelectric nanowires in the recently reported piezoelectric nanogenerators7-12is lower than that of lead zirconate titanate (PZT) nanomaterials. Here we report a piezoelectric nanogenerator based on PZT nanofibers. The PZT nanofibers, with a diameter and length of approximately 60 nm and 500 μm, were aligned on interdigitated electrodes of platinum fine wires and packaged using a soft polymer on a silicon substrate. The measured output voltage and power under periodic stress application to the soft polymer was 1.63 V and 0.03 μW, respectively.

Original languageEnglish (US)
Pages (from-to)2133-2137
Number of pages5
JournalNano Letters
Issue number6
StatePublished - Jun 9 2010

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • General Chemistry
  • General Materials Science
  • Condensed Matter Physics
  • Mechanical Engineering


  • Bio-MEMS
  • Electrospinning
  • Lead zirconate titanate (PZT)
  • Mechanical energy
  • Nanofiber
  • Piezoelectric nanogenerator


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