Fractal properties of the percolation conductivity of polycrystalline PbS films
Gudaev O. A. , Malinovskii V. K., Paul' E. E.
Fractal properties of a percolation cluster may be manifested in a nonlinear relationship between the photoconductivity and the lifetime of photoexcited carriers. An effect has been observed experimentally in polycrystalline PbS films.