Tin disulfide β-SnS2 thin films have been prepared on pyrex substrates by
the spray pyrolysis technique using tin tetrachloride and thiourea as starting materials. The
depositions were carried out in the range of substrate temperatures from 240 to
400 °C. Highly c-axis oriented β-SnS2 films, having a strong (001) X-ray
diffraction line are obtained at temperature 280 °C and using concentration ratio
in solution $\Re = [{\rm S}]/[{\rm Sn}] = 2.5$. Films surfaces were analyzed by contact
Atomic Force Microscopy (AFM) and by Scanning Electron Microscopy (SEM) in order to
understand the effect of the deposited temperature on the surface structure. On the other
hand, from transmission and reflection spectra, the band gap energy determined is about
2.71 eV. Finally using the photodeflection spectroscopy technique, the thermal conductivity
Kc and diffusivity Dc were obtained. Their values are 10 Wm−1K−1
and 10−5 m2s−1 respectively.