Synthesis of Zinc Oxide Nanotetrapods and Nanorods by Thermal Evaporation without Catalysis
ZnO nanotetrapods and nanorods have been synthesized by a simple thermal evaporation of Zn powder (300 mesh, 99.99% purity) under simultaneous flow of oxygen and argon gases in two-zone furnace in two different temperature regions. These ZnO nanostructures have hexagonal structure,
which grow along the [001] direction in the form of nanotetrapods (diameter ∼60–150 nm, length ∼1–4 μm) and nanorods (diameter ∼30–60 nm, length ∼2–5 μm). The morphologies of these ZnO nanostructures have been investigated by scanning
electron microscopy (SEM) and transmission electron microscopy (TEM). It has been found that growth parameters like temperature, gas flow rate etc., control the diameter of the nanotetrapods and nanorods. These novel structures of ZnO nanorods and nanotetrapods may be attractive for optical
and other nanodevices.
Keywords: NANORODS; NANOTETRAPODS; SEM; TEM
Document Type: Research Article
Publication date: 01 June 2007
- Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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