4.6 Article

Characterization of single transition metal oxide nanorods by combining atomic force microscopy and polarized micro-Raman spectroscopy

Journal

CHEMICAL PHYSICS LETTERS
Volume 514, Issue 1-3, Pages 128-133

Publisher

ELSEVIER SCIENCE BV
DOI: 10.1016/j.cplett.2011.08.039

Keywords

-

Funding

  1. Aquitaine region [20051304008AB]
  2. University Bordeaux 1
  3. CNRS

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Accurate chemical and structural characterization of free-standing zinc oxide (ZnO) and hematite (alpha-Fe(2)O3) nanorods has been carried out using an AFM/Raman correlative technique under polarized light. ZnO nanorods are found to be wurtzite-type single crystalline objects homogeneous in composition and grown along their principal axis of symmetry. Hematite specimens are rhombohedral corundum-type single crystals grown along a direction orthogonal to their principal axis of symmetry and exhibiting structural disorder. Certain hematite nanorods turn out to be very sensitive to laser heating. These studies reveal the high potential of the coupled AFM/Raman technique to examine the properties of these promising nanomaterials. (C) 2011 Elsevier B.V. All rights reserved.

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