Aligned ZnO nanorods synthesized by a simple hydrothermal reaction
Date of Issue2006
School of Materials Science and Engineering
Zinc oxide (ZnO) nanorods were fabricated by a hydrothermal reaction in ammonia and zinc chloride solution without any surfactant at 95◦C in a sealed bottle. In the area near the solution surface, the product presented urchin-like arrays composed of needle-tipped nanorods with about 40 nm diameter. In the middle and the bottom of the solution, the ZnO nanorods grew vertically on the substrate and showed tapered and flat ends and bigger diameters of about 300–400 nm. The microstructure characterization of x-ray diffraction and high resolution transmission electron microscopy images demonstrated that all ZnO nanorods grew along the  direction. The influence of the chemical reactions and the depth-dependent growth along various facets of ZnO are discussed.
Journal of physics D: applied physics
© 2006 Institute of Physics Publishing. This is the author created version of a work that has been peer reviewed and accepted for publication by Journal of Physics D: Applied Physics, Institute of Physics Publishing. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: http://dx.doi.org/10.1088/0022-3727/39/8/032.