Enhanced output power of PZT nanogenerator by controlling surface morphology of electrode

Woo Suk Jung, Won Hee Lee, Byeong Kwon Ju, Seok Jin Yoon, Chong-Yun Kang

Research output: Contribution to journalArticle

Abstract

Piezoelectric power generation using Pb(Zr,Ti)O3(PZT) nanowires grown on Nb-doped SrTiO3(nb:STO) substrate has been demonstrated. The epitaxial PZT nanowires prepared by a hydrothermal method, with a diameter and length of approximately 300 nm and 7 μm, respecively, were vertically aligned on the substrate. An embossed Au top electrode was applied to maximize the effective power generation area for non-uniform PZT nanowires. The PZT nanogenerator produced output power density of 0.56 μW/cm2 with a voltage of 0.9 V and current of 75 nA. This research suggests that the morphology control of top electrode can be useful to improve the efficiency of piezoelectric power generation.

Original languageEnglish
Pages (from-to)8907-8911
Number of pages5
JournalJournal of Nanoscience and Nanotechnology
Volume15
Issue number11
DOIs
Publication statusPublished - 2015 Nov 1

Keywords

  • Energy harvesting
  • Hydrothermal
  • Nanogenerator
  • Nanostructure
  • PZT

ASJC Scopus subject areas

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

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