Title of Paper:Catalyst-free growth of well-aligned arsenic-doped ZnO nanowires by chemical vapor deposition method

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Date of Publication:2010-11-15

Journal:APPLIED SURFACE SCIENCE

Included Journals:SCIE、EI、Scopus

Volume:257

Issue:3

Page Number:1084-1087

ISSN No.:0169-4332

Key Words:ZnO nanowires; Arsenic; Chemical vapor deposition; Photoluminescence

Abstract:ZnO nanowires with different arsenic concentration were grown on Si (100) substrates by chemical vapor deposition method without using catalyst. Zn/GaAs mixed powders were used as Zn and As source, respectively. Oxygen was used as oxidant. The images of scanning electron microscope show that the arsenic-doped ZnO nanowires with preferred c-axial orientation were obtained, which is in well accordance with the X-ray diffraction analysis. The arsenic related acceptor emission was observed in the photoluminescence spectra at 11 K for all arsenic-doped ZnO samples. This method for the preparation of arsenic-doped ZnO nanowires may open the way to realize the ZnO nanowires based light-emitting diode and laser diode. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.