The effect of stacking fault formation on optical properties in vertically aligned ZnO nanowires

Min Chang Jeong, Sang Won Lee, Ji Min Seo, Jae Min Myoung

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Vertically aligned ZnO nanowire arrays were grown on Al2O 3 (006) and Zn/Al2O3 (006) substrates under the same fabrication condition using metal-organic chemical vapour deposition. The single-crystalline ZnO nanowires grown on Al2O3 and Zn/Al2O3 exhibited different morphology and crystalline characteristics. ZnO nanowires having in-plane or 30°-twist orientations to the Al2O3 were grown on the Zn/Al2O3 while the nanowires fabricated on the Al2O3 exhibited the 30°-twist orientation. In addition, I1 intrinsic stacking faults were observed only in the nanowires grown on the Zn/Al2O 3. The insertion of Zn layers changed the growth direction of the ZnO nanowires that induced the difference in their morphology and crystalline structures. Deterioration of the optical characteristics in the ZnO nanowires due to the crystalline defects, i.e. the stacking faults, was also observed.

Original languageEnglish
Article number305701
JournalNanotechnology
Volume18
Issue number30
DOIs
Publication statusPublished - 2007 Aug 8

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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