Synthesis of TiO2 thin films by the SILAR method and study of the influence of annealing on its structural, morphological and optical properties

Preparation and characterization of TiO2 films were made. Films were synthesized on glass substrates by the SILAR (Successive Ionic Layer Adsorption and Reaction) method. The preparation consisted of 150 cycles of a successive and alternate immersion of substrates in the precursor solution and in di...

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Autores principales:	Jiménez-García,F. N, Segura-Giraldo,B, Restrepo-Parra,E, López-López,G.A
Lenguaje:	English
Publicado:	Universidad de Tarapacá. 2015
Materias:	TiO2 anatase SILAR XRD SEM UV-Vis
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-33052015000400012
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spelling	oai:scielo:S0718-330520150004000122016-03-22Synthesis of TiO2 thin films by the SILAR method and study of the influence of annealing on its structural, morphological and optical propertiesJiménez-García,F. NSegura-Giraldo,BRestrepo-Parra,ELópez-López,G.A TiO2 anatase SILAR XRD SEM UV-Vis Preparation and characterization of TiO2 films were made. Films were synthesized on glass substrates by the SILAR (Successive Ionic Layer Adsorption and Reaction) method. The preparation consisted of 150 cycles of a successive and alternate immersion of substrates in the precursor solution and in distilled water at 353 K. Growing was conducted at two conditions of the precursor solution which contained TiCl3 and NH2CONH2: at room temperature and at 343 K. After the growth, films were annealed at 723 K for 2 hours. Regarding characterization, samples were studied using XRD, SEM and UV-Vis. Structural characterization results showed that, in general, the films presented an amorphous crystalline structure except those which were grown with precursor solution at 343 K and thermally treated after the growths, which presented an anatase crystalline structure. Concerning their morphology, a granular structure and a random distribution of a flower-like structure were observed. Grain sizes did not change significantly after annealing. The optical study was carried out taking into account an indirect transition allowed determining the band gap energy to be around 3.1 eV. This value, which is typical for TiO2, decreases after annealing, usual for this type of films.info:eu-repo/semantics/openAccessUniversidad de Tarapacá.Ingeniare. Revista chilena de ingeniería v.23 n.4 20152015-10-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-33052015000400012en10.4067/S0718-33052015000400012
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	TiO2 anatase SILAR XRD SEM UV-Vis
spellingShingle	TiO2 anatase SILAR XRD SEM UV-Vis Jiménez-García,F. N Segura-Giraldo,B Restrepo-Parra,E López-López,G.A Synthesis of TiO2 thin films by the SILAR method and study of the influence of annealing on its structural, morphological and optical properties
description	Preparation and characterization of TiO2 films were made. Films were synthesized on glass substrates by the SILAR (Successive Ionic Layer Adsorption and Reaction) method. The preparation consisted of 150 cycles of a successive and alternate immersion of substrates in the precursor solution and in distilled water at 353 K. Growing was conducted at two conditions of the precursor solution which contained TiCl3 and NH2CONH2: at room temperature and at 343 K. After the growth, films were annealed at 723 K for 2 hours. Regarding characterization, samples were studied using XRD, SEM and UV-Vis. Structural characterization results showed that, in general, the films presented an amorphous crystalline structure except those which were grown with precursor solution at 343 K and thermally treated after the growths, which presented an anatase crystalline structure. Concerning their morphology, a granular structure and a random distribution of a flower-like structure were observed. Grain sizes did not change significantly after annealing. The optical study was carried out taking into account an indirect transition allowed determining the band gap energy to be around 3.1 eV. This value, which is typical for TiO2, decreases after annealing, usual for this type of films.
author	Jiménez-García,F. N Segura-Giraldo,B Restrepo-Parra,E López-López,G.A
author_facet	Jiménez-García,F. N Segura-Giraldo,B Restrepo-Parra,E López-López,G.A
author_sort	Jiménez-García,F. N
title	Synthesis of TiO2 thin films by the SILAR method and study of the influence of annealing on its structural, morphological and optical properties
title_short	Synthesis of TiO2 thin films by the SILAR method and study of the influence of annealing on its structural, morphological and optical properties
title_full	Synthesis of TiO2 thin films by the SILAR method and study of the influence of annealing on its structural, morphological and optical properties
title_fullStr	Synthesis of TiO2 thin films by the SILAR method and study of the influence of annealing on its structural, morphological and optical properties
title_full_unstemmed	Synthesis of TiO2 thin films by the SILAR method and study of the influence of annealing on its structural, morphological and optical properties
title_sort	synthesis of tio2 thin films by the silar method and study of the influence of annealing on its structural, morphological and optical properties
publisher	Universidad de Tarapacá.
publishDate	2015
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-33052015000400012
work_keys_str_mv	AT jimenezgarciafn synthesisoftio2thinfilmsbythesilarmethodandstudyoftheinfluenceofannealingonitsstructuralmorphologicalandopticalproperties AT seguragiraldob synthesisoftio2thinfilmsbythesilarmethodandstudyoftheinfluenceofannealingonitsstructuralmorphologicalandopticalproperties AT restrepoparrae synthesisoftio2thinfilmsbythesilarmethodandstudyoftheinfluenceofannealingonitsstructuralmorphologicalandopticalproperties AT lopezlopezga synthesisoftio2thinfilmsbythesilarmethodandstudyoftheinfluenceofannealingonitsstructuralmorphologicalandopticalproperties
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Synthesis of TiO2 thin films by the SILAR method and study of the influence of annealing on its structural, morphological and optical properties

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