SnS and SnS : In films were deposited onto glass substrates by chemical bath technique. The structure and surface morphology of the SnS : In films were studied by X-ray diffraction (XRD) and scanning electron microscope (SEM) respectively. Energy dispersive spectroscopy (EDS) showed the existence of In in the films. The undoped SnS film exhibited a rather high resistivity and InCl3 could reduce the resistivity of these films by two orders approximately. The band gaps of the SnS and SnS : In films were evaluated from the optical transmission spectra.
The transient electro-osmotic flow of generalized second-grade fluid with fractional derivative in a narrow capillary tube is examined. With the help of the integral transform method, analytical expressions are derived for the electric potential and transient velocity profile by solving the linearized Poisson-Boltzmann equation and the Navier-Stokes equation. It was shown that the distribution and establishment of the velocity consists of two parts, the steady part and the unsteady one. The effects of retardation time, fractional derivative parameter, and the Debye-Hückel parameter on the generation of flow are shown graphically.
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