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Morphology and fractal dimension of tio2 thin films

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2013
450-1410-2-PB.pdf (1.218Mb)
Authors
Petrović, Srđan
Rožić, Ljiljana
Grbić, Boško
Radić, Nenad
Dostanić, Jasmina
Stojadinović, Stevan
Vasilic, Rastko
Article (Published version)
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Abstract
The influence of annealing temperature on the morphology and surface fractal dimension of titanium dioxide (TiO2) films prepared via the spray deposition process was investigated. Thin films with various morphologies were obtained at different temperatures and characterized by X-ray diffraction and atomic force microscopy (AFM). It was found that the crystalline structure of TiO2 films depends strongly on annealing temperature. At higher temperatures, the partial phase transformation of anatase-to-rutile was observed. The morphology and surface fractal dimensions were evaluated by image analysis methods based on AFM micrographs. The results indicate that the value of surface roughness (the standard deviation of the height values within the given area of AFM image) of TiO(2)films increases with increasing annealing temperature. Fractal analysis revealed that the value of the fractal dimension of the samples decreases slowly from 2.23 to 2.15 following the annealing process.
Keywords:
fractal characteristic / surface morphology / TiO2 thin films / atomic force microscopy / spray deposition
Source:
Macedonian Journal of Chemistry and Chemical Engineering, 2013, 32, 2, 309-317
Publisher:
  • Soc Chemists Technologists Madeconia, Skopje
Projects:
  • The study of physicochemical and biochemical processes in living environment that have impacts on pollution and the investigation of possibilities for minimizing the consequences (RS-172001)
  • Dynamics of nonlinear physicochemical and biochemical systems with modeling and predicting of their behavior under nonequilibrium conditions (RS-172015)
  • Graphitic and Inorganic Low-dimensional Nanostructures (RS-171035)
  • The development of efficient chemical-engineering processes based on the transport phenomena research and process intensification principles (RS-172022)
  • Chemical and structural designing of nanomaterials for application in medicine and tissue engineering (RS-172026)

ISSN: 1857-5552

WoS: 000329266800008

Scopus: 2-s2.0-84897597006
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URI
http://cer.ihtm.bg.ac.rs/handle/123456789/1233
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