Anisotropic outputs of a nanogenerator from oblique-aligned ZnO nanowire arrays

Cheng Ying Chen, Jun Han Huang, Jinhui Song, Yusheng Zhou, Long Lin, Po Chien Huang, Yan Zhang, Chuan Pu Liu, Jr Hau He*, Zhong Lin Wang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

49 Scopus citations

Abstract

We studied the dependence of the output of the piezoelectric nanogenerator (NG) on the inclining orientation of the ZnO nanowire arrays (NWAs). The oblique-aligned NWAs were grown by combing a modified oblique-angle sputtering technique for preparing the seed layer and hydrothermal growth. The piezoelectric output of the NWAs was studied by scanning the tip of an atomic force microscope along four different directions in reference to the inclining direction of the NWs. The statistical outputs were analyzed in reference to the theoretically calculated piezopotential distribution in the NWs. Our study provides in-depth understanding about the performance of NGs.

Original languageEnglish (US)
Pages (from-to)6707-6713
Number of pages7
JournalACS Nano
Volume5
Issue number8
DOIs
StatePublished - Aug 23 2011

Keywords

  • ZnO
  • atomic force microscope
  • nanogenerator
  • nanowire

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

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