Structural, optical and magnetic properties of Ni-doped ZnO micro-rods grown by the spray pyrolysis method

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YILMAZ Ş., McGlynn E., BACAKSIZ E., Cullen J., Chellappan R. K.

CHEMICAL PHYSICS LETTERS, ss.72-76, 2012 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası:
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1016/j.cplett.2012.01.003
  • Dergi Adı: CHEMICAL PHYSICS LETTERS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.72-76
  • Karadeniz Teknik Üniversitesi Adresli: Evet

Özet

Undoped and Ni-doped ZnO micro-rod arrays were successfully synthesized by the spray pyrolysis method on glass substrates. Analysis of the samples with X-ray diffraction and scanning electron microscopy showed that these micro-rod arrays had a polycrystalline wurtzite structure with a highly c-axis preferred orientation. Photoluminescence studies at both 300 and 10 K show that the incorporation of nickel leads to a relative increase in the visible blue light band intensity. Magnetic measurements indicated that Ni-doped ZnO samples exhibit ferromagnetic behavior at room temperature, which is possibly related to the presence of point defects. Crown Copyright (C) 2012 Published by Elsevier B.V. All rights reserved.