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Synthesis, Structure and Optical Properties of CdO Nanocrystals Directly Grown on Cd Foil

  • 1Department of Physics and Solar Energy Research Center, Pingdingshan University, Pingdingshan 467000

  • 2Department of Mathematics and Information Science, North China University of Water Resources and Electric Power, Zhengzhou 450045

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  • Received Date: May 11, 2015
  • Revised Date: September 17, 2015
  • Published Date: September 30, 2015
    Abstract
  • Semiconductor nanocrystals directly grown on the conducting metal can lower the contact resistance and can benefit the electron transfer between the semiconductor and the metal. In the present work, CdO nanocrystals are directly synthesized on the conducting Cd foil through a simple solvothermal method. Cd foil is used as the Cd2+ source and the substrate. The average size of CdO nanocrystals is ∼23.1 nm by analyzing the XRD data. Moreover the growth mechanism is discussed. A hierarchic structure characterized by the nano rods and nano particles in the top and bottom layers, respectively, can be observed. From the UV-vis absorption analyzed by Tauc's relation, the two different optical band gaps are obtained. The photoluminescence spectrum is obtained and studied.
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    • References (23)
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