Optical, electrical and structural properties of zinc stannate (zn2sn04) thin films prepared by spray pyrolysis technique.
Abstract
Highly transparent and conducting Zn2Sn04 films have been
prepared by spray pyrolysis technique. Films grown at a substrate
temperature of 440°C exhibit the best optical and electrical
properties. The microcrystals of these films had a preferred
orientation along c-axis normal to the surface. The direct band
gap was found to be 3.1 eV. Hall effect studies on these films
yielded a carrier concentration of 1.2x1020 cm" and a mobility of
2.5 cm2/v .sec. These films have a potential to perform as good
transparent conductors and can be used in solar energy devices
such as solar cells and solar collectors.
Citation
Masters of science in physicsSponsorhip
University of NairobiPublisher
Department of Physics University of Nairobi