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Ga2-2xIn2xO3 films with different indium content x [In/(Ga+In) atomic ratio] have been prepared on α-Al2O3 (0001) substrates by the metalorganic chemical vapor deposition (MOCVD) method. The preparation, structural and photoluminescence (PL) properties of the Ga2-2xIn2xO3 films were investigated. The XRD analysis revealed that the film with high Ga content exhibited monoclinic structure of Ga2O3 and...
A simple process is presented for the preparation of TiO2 nanoparticles by Co-precipitation method. This process is relatively cheaper and by using different variation we can control particle size and shape. TiCl4 was used as primary precursor along with Na2CO3 for synthesis of Rutile nanoparticles. Synthesis was done with and without modifier. Structural characterizations of samples were performed...
Lattice-matched (x =0.18) AlxIn1- xN epilayers were grown on GaN/ patterned sapphire substrate (PSS ) (0 0 0 1) and GaN/ unpatterned sapphire substrate (UPSS) (0 0 0 1) by metal-organic chemical vapor deposition (MOCVD). The quality of the grown AlInN epilayers on the PSS and UPSS were compared. Structural characteristics and surface morphology optical properties of the AlInN epilayers were investigated...
Nanostructured multilayered Fe2O3 films have been deposited onto commercial glass slides by spray pyrolysis using FeCl3 solution and nitrogen as carrier gas. The influences of thermal treatment and of the number of layers on the optical properties of the films have been studied. Structural investigations on the films were performed using X-ray diffraction.
A growing need for eco-friendly energy sources have led recently to a frantic search of new compositional systems for photovoltaic applications. The nanocomposite titania-germanium (TiO2-Ge) systems represent a new viable family of optoelectronic materials. Their structural, optical and electronic properties can be easily tailored by customizing the density and size of Ge dots in the TiO2 matrix....
Titanium oxide thin films on glass substrates were prepared by resistance evaporation method under UHV conditions, with different 13, 30 and 58 nm thicknesses in room temperature. The structural and optical properties of the films were systematically examined. The nano-structure of the films were obtained using X-ray diffraction (XRD), and atomic force microscopy (AFM) and their optical properties...
Undoped and Mn doped ZnO films with different doping concentration were synthesized by sol gel method using a spin coating technique. Zn1-xMnxO thin films are prepared using 2-methoxyethanol solution of zinc acetate dehydrate and manganese acetate tetrahydrate. The solution was stabilized by MEA. The quantity of Mn in the sol was varied from x = 0, 0.02 and 0.04 with annealing temperature of 700°C...
ZnS thin films are prepared by pulsed laser deposition and the effect of annealing temperature on the structural and optical properties of ZnS films is investigated systematically using techniques like X-ray diffraction (XRD), Atomic force microscopy (AFM), UV-VIS spectroscopy and Photoluminescence spectroscopy (PL). The XRD pattern of the film annealed at 600??C show a less intense XRD peak of hexagonal...
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