Nanocrystalline Titanium Oxide thin Films Prepared by Sol-Gel Process
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| Format: | Artículo científico |
| Langue: | en |
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Sociedade Brasileira de Física
2006
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| _version_ | 1876425002909171712 |
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| author | Nelcy D. S. Mohallem |
| author_facet | Nelcy D. S. Mohallem |
| contents | Nanocrystalline Titanium Oxide thin Films Prepared by Sol-Gel Process Nelcy D. S. Mohallem Marcelo M. Viana Tarik D. S. Mohallem Gabriel L. T. Nascimento Física, Astronomía y Matemáticas Sol gel process Titanium oxide thin films Crystalline films of pure titanium oxide have been prepared on soda lime slide glasses by sol-gel processand dip-coating. The definition of various parameters such as chemical concentration, viscosity, catalyst typeand withdrawal speed led to the preparation of transparent, crystalline and adherent coatings with hydrophobiccharacteristics. Their crystalline structure was evaluated as anatase phase by low angle X-ray diffraction. Thicknesseswere measured by perfilometry, and the refractive indices were determined from transmittance spectrumtaking into consideration the layers deposited onto the two sides of the substrate. Porosity was also estimatedby UV-visible spectroscopy by using the Lorentz Lorenz equation. The average grain size was evaluated byatomic force microscopy. The thicker and denser films presented hydrophobicity, which decreased when thefilm porosity increased. 2006 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46436575 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.3B Vol.36 |
| format | Artículo científico |
| id | redalyc_46436575 |
| institution | Redalyc |
| language | en |
| publishDate | 2006 |
| publisher | Sociedade Brasileira de Física |
| spellingShingle | Nanocrystalline Titanium Oxide thin Films Prepared by Sol-Gel Process Nelcy D. S. Mohallem Física, Astronomía y Matemáticas Sol gel process Titanium oxide thin films Nanocrystalline Titanium Oxide thin Films Prepared by Sol-Gel Process Nelcy D. S. Mohallem Marcelo M. Viana Tarik D. S. Mohallem Gabriel L. T. Nascimento Física, Astronomía y Matemáticas Sol gel process Titanium oxide thin films Crystalline films of pure titanium oxide have been prepared on soda lime slide glasses by sol-gel processand dip-coating. The definition of various parameters such as chemical concentration, viscosity, catalyst typeand withdrawal speed led to the preparation of transparent, crystalline and adherent coatings with hydrophobiccharacteristics. Their crystalline structure was evaluated as anatase phase by low angle X-ray diffraction. Thicknesseswere measured by perfilometry, and the refractive indices were determined from transmittance spectrumtaking into consideration the layers deposited onto the two sides of the substrate. Porosity was also estimatedby UV-visible spectroscopy by using the Lorentz Lorenz equation. The average grain size was evaluated byatomic force microscopy. The thicker and denser films presented hydrophobicity, which decreased when thefilm porosity increased. 2006 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46436575 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.3B Vol.36 |
| title | Nanocrystalline Titanium Oxide thin Films Prepared by Sol-Gel Process |
| topic | Física, Astronomía y Matemáticas Sol gel process Titanium oxide thin films |
| url | https://www.redalyc.org/articulo.oa?id=46436575 |