Preparation of c-axis-oriented zinc-oxide thin films and the study of their microstructure and optical properties


Aslan M., Oral A., Mensur E., Gul A., Basaran E.

SOLAR ENERGY MATERIALS AND SOLAR CELLS, cilt.82, ss.543-552, 2004 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 82 Konu: 4
  • Basım Tarihi: 2004
  • Doi Numarası: 10.1016/j.solmat.2003.06.016
  • Dergi Adı: SOLAR ENERGY MATERIALS AND SOLAR CELLS
  • Sayfa Sayısı: ss.543-552

Özet

c-axis-oriented zinc-oxide (ZnO) thin films were prepared on microscope glass substrates by sol-gel deposition. A homogeneous and stable solution was prepared by dissolving zinc-acetate 2-hydrate (ZnAc) in 2-propanol and diethanolamine. Crystalline ZnO thin films were obtained following an annealing process at temperatures between 450degreesC and 550degreesC for 1 h. Increasing annealing temperature increased the grain size and the c-axis orientation. The X-ray diffraction analysis revealed single-phase ZnO with hexagonal zincite structure. The absorption edge analysis revealed that the optical band-gap energy for the films were between 3.26 and 3.28 eV and electronic transition was direct transition type. (C) 2004 Published by Elsevier B.V.