ZnMgO thin films were prepared on Si substrates by aerosol deposition method using zinc acetate and magnesium acetate as precursors. The obtained films were investigated by scanning electron microscopy (SEM), energy dispersive xray (EDX) and X-Ray Diffraction (XRD) analysis. SEM and EDX investigations showed that the produced thin films are homogeneous from the point of view of morphology and composition. The investigation of photosensitivity demonstrated that the heterostructures of ZnMgO thin films deposited on Si substrates are sensitive in a wide spectral range from ultraviolet (UV) to infrared (IR) radiation, with a highest sensitivity in the UV region.
Highly-ordered two dimensional arrays of monodisperse silver and nickel nanowires were prepared in an alumina matrix. The nearly 100% filling of the template with metal was obtained by improved electrochemical deposition technique. The light propagation in the direction of the long axis of the metal nanowires were studied by far field spectroscopy and the results were compared with the generalized Mie theory. By selectively dissolving the matrix at a constant etching rate the we investigate the surface enhanced Raman scattering (SERS) and the results are interpreted with theoretical models. The enhanced SERS signal can be recorded until the whole matrix was removed and the ordering of the metal nanowires collapses.
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