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Keywords:

  • ZnO;
  • nano-scale;
  • EPR;
  • electronic properties;
  • surface effects;
  • defects

Abstract

ZnO nanoparticles were synthesized by solid coprecipitation method with consecutive high energy ball milling procedure. By reducing the particle size of ZnO to nano dimensions strong nano-size effects were observed. In order to characterize the ZnO defect structure, EPR has been applied. It was observed that below 50 nm the surface defects play a dominant role in the electronic properties of ZnO. (© 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)