Electrical and optical properties of fluorine-doped CdO films deposited by ultrasonic spray pyrolysis

Kul M., Zor M., Aybek A. S., Irmak S., Turan E.

SOLAR ENERGY MATERIALS AND SOLAR CELLS, vol.91, no.10, pp.882-887, 2007 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 91 Issue: 10
  • Publication Date: 2007
  • Doi Number: 10.1016/j.solmat.2007.01.020
  • Journal Name: SOLAR ENERGY MATERIALS AND SOLAR CELLS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.882-887
  • Keywords: cadmium oxide, fluorine doping, Moss-Burstein effect, band broadening, conductivity, OXIDE THIN-FILMS, ACTIVATED REACTIVE EVAPORATION, PHYSICAL-PROPERTIES, ZINC-OXIDE, DEPENDENCE, PRESSURE
  • Anadolu University Affiliated: Yes

Abstract

The CdO:F samples have been deposited onto microscope glass substrates at 250 degrees C by ultrasonic spray pyrolysis method. With the incorporation of fluorine into CdO, the direct optical transition has shifted towards the shorter wavelengths, and the transparency of the material has increased at a given wavelength above the fundamental absorption edge. The shift in the absorption edge is explained by means of the Moss-Burstein effect, which is also supported with the results of the current-voltage characteristics. Here, a correlation has been established between the band broadening and the increase in conductivity due to the increase in carrier density. (C) 2007 Elsevier B.V. All rights reserved.