Study of the morphological evolution of ZnO nanostructures on various sapphire substrates

J. P. Kar, S. N. Das, J. H. Choi, T. I. Lee, J. M. Myoung

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Zinc oxide (ZnO) nanostructures were grown on A-, C- and R-plane sapphires by metal organic chemical vapor deposition (MOCVD) technique. The shape of nanostructures was greatly influenced by the underlying sapphire substrate. Vertical aligned nanowires were observed on A- and C-plane sapphires, whereas the nanopencils were grown on R-plane sapphire. A correlation between the morphological and optical properties of the nanostructures has been established, where the morphological and structural characteristics are responsible for the evolution of optical properties. The nanowires, grown on C-plane sapphires, have shown superior optical properties. Comparatively higher photo-induced wettability transition has also been observed for ZnO nanostructures on R-plane sapphire.

Original languageEnglish
Pages (from-to)4995-4999
Number of pages5
JournalApplied Surface Science
Volume256
Issue number16
DOIs
Publication statusPublished - 2010 Jun 1

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

Cite this