The effects of zinc nitrate, zinc acetate and zinc chloride precursors on investigation of structural and optical properties of ZnO thin films

BACAKSIZ E., PARLAK M., TOMAKİN M., Ozcelik A., Karakiz M., Altunbas M.

JOURNAL OF ALLOYS AND COMPOUNDS, cilt.466, ss.447-450, 2008 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 466
  • Basım Tarihi: 2008
  • Doi Numarası: 10.1016/j.jallcom.2007.11.061
  • Dergi Adı: JOURNAL OF ALLOYS AND COMPOUNDS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.447-450
  • Anahtar Kelimeler: Zinc oxide, Microrods, Spray pyrolysis, Transmittance, SPRAY-PYROLYSIS, ROOM-TEMPERATURE, DEPOSITION, GROWTH
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

ZnO thin films were prepared using zinc chloride, zinc acetate and zinc nitrate precursors by spray pyrolysis technique oil glass substrates at 550 degrees C. Structural and optical properties of ZnO films were investigated by X-ray diffraction (XRD), scanning electron microscope (SEM) and optical transmittance spectra. Regardless of precursors, ZnO thin films are all in hexagonal crystallographic phase and have to (0 0 2) preferred orientation. SEM images show completely different surface morphologies for each precursor in ZnO thin films. ZnO rod was observed only for zinc chloride precursor. The optical measurements reveal that films have a low transmittance and a direct band gap approximately 3.30 eV, which is very close to band gap of intrinsic ZnO. (C) 2007 Elsevier B.V. All rights reserved.