Morphology and fractal dimension of TiO<sub>2</sub> thin films

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...

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Main Author: Srdjan P Petrović
Format: Article
Language:English
Published: Society of Chemists and Technologists of Macedonia 2013-12-01
Series:Macedonian Journal of Chemistry and Chemical Engineering
Subjects:
Online Access:https://mjcce.org.mk/index.php/MJCCE/article/view/450
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author Srdjan P Petrović
author_facet Srdjan P Petrović
author_sort Srdjan P Petrović
collection DOAJ
description 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 TiO2 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.
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spelling doaj.art-35a5c9b61b7347bc92ebf903df623d252022-12-21T19:48:02ZengSociety of Chemists and Technologists of MacedoniaMacedonian Journal of Chemistry and Chemical Engineering1857-55521857-56252013-12-0132210.20450/mjcce.2013.450202Morphology and fractal dimension of TiO<sub>2</sub> thin filmsSrdjan P Petrović0IChTM-Department of Catalysis and Chemical Engineering, University of Belgrade, Njegoševa 12, BelgradeThe 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 TiO2 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.https://mjcce.org.mk/index.php/MJCCE/article/view/450fractal characteristicsurface morphologytio2 thin filmsatomic force microscopy
spellingShingle Srdjan P Petrović
Morphology and fractal dimension of TiO<sub>2</sub> thin films
Macedonian Journal of Chemistry and Chemical Engineering
fractal characteristic
surface morphology
tio2 thin films
atomic force microscopy
title Morphology and fractal dimension of TiO<sub>2</sub> thin films
title_full Morphology and fractal dimension of TiO<sub>2</sub> thin films
title_fullStr Morphology and fractal dimension of TiO<sub>2</sub> thin films
title_full_unstemmed Morphology and fractal dimension of TiO<sub>2</sub> thin films
title_short Morphology and fractal dimension of TiO<sub>2</sub> thin films
title_sort morphology and fractal dimension of tio sub 2 sub thin films
topic fractal characteristic
surface morphology
tio2 thin films
atomic force microscopy
url https://mjcce.org.mk/index.php/MJCCE/article/view/450
work_keys_str_mv AT srdjanppetrovic morphologyandfractaldimensionoftiosub2subthinfilms