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This paper reports on the preparation of nano-structured of MgxZn1-xO thin films by sol-gel spin coating method which will be used as a template layer to grow carbon nanotubes. The MgxZn1-xO films were deposited on Pt/Si (100) substrates. In this work, we focused on the effect of sol aging and Mg content on the film structure and resistivity. Sols with Mg content of x = 0.1, 0.3 and 0.5 were subjected...
In this study, nanostructured composite coatings of hydroxyapatite (HA)/ 30wt% yttria stabilized zirconia (YSZ) coatings containing 0, 3, 5, and 8 mol% Y2O3 were successfully synthesized using the sol-gel method. The crystallite size of the coating was about ~44-58 nm for tetragonal and cubic zirconia grain size and 75-87 nm for hydroxyapatite grain size. Crack-free and homogeneous HA-YSZ composite...
GeSiO nanosystems were obtained using two different preparation methods, sol-gel and magnetron-sputtering. Transmission electron microscopy measurements were performed to investigate the films structure. Amorphous and crystalline Ge dots embedded in amorphous silicon dioxide were observed. The Ge concentration in the GeSiO films was by Energy-dispersive X-ray spectroscopy.
Zinc oxide (ZnO) is an emerging optoelectronic material in large area electronic applications due to its various functional behaviors. We present the fabrication and characterizations of ZnO nanostructures. The ZnO nanostructures consisting of nanorods were synthesized using sol-gel hydrothermal technique on oxidized silicon (Si) substrates. In the fabrication of ZnO nanorods, the oxidized Si substrates...
Sol-gel route is employed to prepare three nanostructured systems, namely core-shell Er3+-activated silica particles, Er3+-activated silica inverse opal; and spherical microresonators coated by Er3+-activated silica-hafnia film. Fabrication protocol, morphology, and spectroscopic assessment are presented. All the structures exhibit high compositional homogeneity leading to a significant 4I13/2 luminescence...
Carbon doped TiO2 nanocrystal powder samples with various C contents were synthesized by a low-temperature sol-gel method, and a large lattice C contents of 12.7% was obtained. We demonstrated that the C ions were homogenously doped into the TiO2 matrix at the form of substitutional C (Cs-o) and interstitial C (CI), without precipitation of TiC and other impurity phase. Our results show that C-doped...
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