Low-temperature growth of ZnO nanowire array by a simple physical vapor-deposition method

Seung Chul Lyu, Ye Zhang, Cheol Jin Lee, Hyun Ruh, Hwack Joo Lee

Research output: Contribution to journalArticle

313 Citations (Scopus)

Abstract

Well-aligned single-crystalline wurzite zinc oxide (ZnO) nanowire array was successfully fabricated on an Al2O3 substrate by a simple physical vapor-deposition method at a low temperature of 450°C. The diameter and growth rate of ZnO nanowires increased as a function of growth temperature. TEM observation showed that the ZnO nanowires were synthesized along the c-axial direction of the hexagonal crystal structure. We demonstrate that ZnO nanowires followed the self-catalyzed growth mechanism on the ZnO nuclei. Besides high-quality ZnO nanowires, sometimes a fascinating hierarchically ordered ZnO structure was also observed.

Original languageEnglish
Pages (from-to)3294-3299
Number of pages6
JournalChemistry of Materials
Volume15
Issue number17
DOIs
Publication statusPublished - 2003 Aug
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

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