Low temperature growth and photoluminescence of well-aligned zinc oxide nanowires

Seung Chul Lyu, Ye Zhang, Hyun Ruh, Hwack Joo Lee, Hyun Wook Shim, Eun Kyung Suh, Cheol Jin Lee

Research output: Contribution to journalArticle

441 Citations (Scopus)

Abstract

Well-aligned single-crystalline zinc oxide (ZnO) nanowires with high density were successfully synthesized on nickel monoxide (NiO) catalyzed alumina substrate through a simple metal-vapor deposition method at an extremely low temperature (450 °C). The single-crystalline ZnO nanowires had a hexagonal wurzite structure and diameters of about 55 nm, and lengths up to 2.6 μm. The photoluminescence spectra under excitation 325 nm showed a ultra-violet (UV) emission at 3.26 eV and a green emission at 2.44 eV. The UV emission and green emission bands were attributed to near band-edge transition and radial combination of a singly ionized oxygen vacancy with a photo-induced hole, respectively.

Original languageEnglish
Pages (from-to)134-138
Number of pages5
JournalChemical Physics Letters
Volume363
Issue number1-2
DOIs
Publication statusPublished - 2002 Sep 2
Externally publishedYes

    Fingerprint

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this