Growth of Highly Oriented ZnO Nanorods by Chemical Vapor Deposition

Abstract

Highly-oriented ZnO nanorods were grown on the fused silica substrates by a thermal CVD technique using Zinc acetylacetonate (Zn(C5H7O2)2). The substrate was heated to 500 deg C and the vaporization temperature of Zn(C5H7O2)2 was keep at around 135 deg C. X-ray diffraction and TEM analyses reveal that the nanorods are preferentially oriented toward the c-axis direction. Photoluminescence (PL) and absorption measurements show a strong emission at around 380nm which corresponds to the near band-edge emission of the bulk ZnO. Moreover, the negligible green emission band in PL spectrum and the absence of E1(LO) mode of the ZnO crystal in Raman spectrum indicate a low concentration of oxygen vacancy in the highly-oriented ZnO nanorods.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Nov 01, 2001
Accession Number
ADP012180

Entities

People

  • Jih-jen Wu
  • Sai-chang Liu

Organizations

  • National Cheng Kung University

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Absorption
  • Absorption Spectra
  • Chemical Vapor Deposition
  • Crystal Structure
  • Energy Bands
  • Films
  • Flow Rate
  • Low Temperature
  • Materials
  • Materials Processing
  • Materials Science
  • Nanocomposites
  • Nanotechnology
  • Optical Materials
  • Optical Properties
  • Physical Properties
  • Spectra

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Nanoscale Plasmonic Nanotechnology
  • Semiconductor Device Technology