期刊
APPLIED SURFACE SCIENCE
卷 254, 期 11, 页码 3269-3273出版社
ELSEVIER
DOI: 10.1016/j.apsusc.2007.11.013
关键词
chemical bath deposition; cadmium oxide; nanowires; structural; optical and electrical studies
A chemical synthesis process for the fabrication of CdO nanowires is described. In the present work, transparent and conductive CdO films were synthesized on the glass substrate using chemical bath deposition (CBD) at room temperature. These films were annealed in air at 623 K and characterized for the structural, morphological, optical and electrical properties were studied by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), optical and electrical resistivity. The XRD analysis showed that the as-deposited amorphous can be converted in to polycrystalline after annealing. Annealed CdO nanowires are 60-65 nm in diameter and length ranges typically from 2.5 to 3 mu m. The optical properties revealed the presence of direct and indirect band gaps with energies 2.42 and 2.04 eV, respectively. Electrical resistivity measurement showed semiconducting behavior and thermoemf measurement showed n-type electrical conductivity. (c) 2007 Elsevier B. V. All rights reserved.
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