PMN-PT nanowires with a very high piezoelectric constant

Shiyou Xu, Gerald Poirier, Nan Yao

Research output: Contribution to journalArticle

53 Scopus citations

Abstract

A profound way to increase the output voltage (or power) of the piezoelectric nanogenerators is to utilize a material with higher piezoelectric constants. Here we report the synthesis of novel piezoelectric 0.72Pb(Mg 1/3Nb 2/3)O 3-0.28PbTiO 3 (PMN-PT) nanowires using a hydrothermal process. The unpoled single-crystal PMN-PT nanowires show a piezoelectric constant (d 33) up to 381 pm/V, with an average value of 373 ± 5 pm/V. This is about 15 times higher than the maximum reported value of 1-D ZnO nanostructures and 3 times higher than the largest reported value of 1-D PZT nanostructures. These PMN-PT nanostructures are of good potential being used as the fundamental building block for higher power nanogenerators, high sensitivity nanosensors, and large strain nanoactuators.

Original languageEnglish (US)
Pages (from-to)2238-2242
Number of pages5
JournalNano Letters
Volume12
Issue number5
DOIs
StatePublished - May 9 2012

All Science Journal Classification (ASJC) codes

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

Keywords

  • hydrothermal
  • nanogenerators
  • PFM
  • piezoelectric constant
  • PMN-PT nanowires

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