Nanofabrication and characterization of ZnO nanorod arrays and branched microrods by aqueous solution route and rapid thermal processing

    Authors

    O. Lupan; L. Chow; G. Y. Chai; B. Roldan; A. Naitabdi; A. Schulte;H. Heinrich

    Comments

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    Abbreviated Journal Title

    Mater. Sci. Eng. B-Solid State Mater. Adv. Technol.

    Keywords

    ZnO nanorod; branched microrods; nanofabrication; transferable; nanoarchitectures; ROOM-TEMPERATURE; SOLAR-CELLS; ZINC-OXIDE; SOLVOTHERMAL ROUTE; OPTICAL-PROPERTIES; VAPOR-DEPOSITION; THIN-FILMS; GROWTH; XPS; NANOWIRES; Materials Science, Multidisciplinary; Physics, Condensed Matter

    Abstract

    This paper presents an inexpensive and fast fabrication method for one-dimensional (1D) ZnO nanorod arrays and branched two-dimensional (2D), three-dimensional (3D) - nanoarchitectures. Our synthesis technique includes the use of an aqueous solution route and post-growth rapid thermal annealing. It permits rapid and controlled growth of ZnO nanorod arrays of 1D - rods, 2D - crosses, and 3D - tetrapods without the use of templates or seeds. The obtained ZnO nanorods are uniformly distributed on the surface of Si substrates and individual or branched nano/microrods can be easily transferred to other substrates. Process parameters such as concentration, temperature and time, type of substrate and the reactor design are critical for the formation of nanorod arrays with thin diameter and transferable nanoarchitectures. X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy, transmission electron microscopy and Micro-Raman spectroscopy have been used to characterize the samples. (C) 2007 Elsevier B.V. All rights reserved.

    Journal Title

    Materials Science and Engineering B-Solid State Materials for Advanced Technology

    Volume

    145

    Issue/Number

    1-3

    Publication Date

    1-1-2007

    Document Type

    Article

    Language

    English

    First Page

    57

    Last Page

    66

    WOS Identifier

    WOS:000252194900010

    ISSN

    0921-5107

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