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See detailPreparation and characterisation of Ag incorporated Al2O3 nanocomposite films obtained by sol-gel method
Ivanova, T.; Harizanova, A.; Koutzarova, T. et al

in Crystal Research and Technology (2012), 47(5), 579-584

Sol-gel route has been applied for a deposition of the thin films of aluminum oxide and Ag embedded in Al2O3 films. The films are spin-coated on Si and quartz substrates with the film thickness of 120 nm ... [more ▼]

Sol-gel route has been applied for a deposition of the thin films of aluminum oxide and Ag embedded in Al2O3 films. The films are spin-coated on Si and quartz substrates with the film thickness of 120 nm. XRD analysis has been used for the determination of the film structure. FTIR spectroscopy is applied for studying vibrational properties of the obtained coatings. Optical characterization is done by UV-VIS spectroscopy. The formation of Ag nanoparticles has been confirmed by XRD and optical data. The sol-gel process is found to be useful technology for incorporation of Ag nanoparticles in the metal oxide matrices. (© 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim) Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. [less ▲]

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See detailEffect of annealing temperatures on properties of sol-gel grown ZnO-ZrO2 films
Ivanova, T.; Harizanova, A.; Koutzarova, T. et al

in Crystal Research And Technology (2010), 45(11), 1154-1160

Mixed ZnO-ZrO2 films have been obtained by sol-gel technology. By using spin coating method, the films were deposited on Si and glass substrates. The influence of thermal annealings (the temperatures vary ... [more ▼]

Mixed ZnO-ZrO2 films have been obtained by sol-gel technology. By using spin coating method, the films were deposited on Si and glass substrates. The influence of thermal annealings (the temperatures vary from 400 degrees C to 750 degrees C) on their structural properties has been studied. The structural behavior has been investigated by the means of XRD and FTIR techniques. The results revealed no presence of mixed oxide phases, the detected crystal phases were related to the hexagonal ZnO and to crystalline ZrO2. The sol-gel ZnO-ZrO2 films showed polycrystalline structure with a certain degree of an amorphous fraction. The optical transmittance reached 91% and it diminished with increasing the annealing temperatures. The optical properties of the sol-gel ZnO-ZrO2 films, deposited on glass substrates are excellent with high transparency and better then those of pure ZrO2 films, obtained at similar technological conditions. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim [less ▲]

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