Optical Properties of Thick TiO<sub>2</sub>-P25 Films
In this study, TiO<sub>2</sub>-P25 films on FTO substrates were synthesized using the sol-gel process and studied using Variable Angle Spectroscopy Ellipsometry (VASE) to determine their optical constants and thickness. The measurements were carried out at room temperature in the wavelen...
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MDPI AG
2025-01-01
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| author | Grazia Giuseppina Politano |
| author_facet | Grazia Giuseppina Politano |
| author_sort | Grazia Giuseppina Politano |
| collection | DOAJ |
| description | In this study, TiO<sub>2</sub>-P25 films on FTO substrates were synthesized using the sol-gel process and studied using Variable Angle Spectroscopy Ellipsometry (VASE) to determine their optical constants and thickness. The measurements were carried out at room temperature in the wavelength range of (300–900) nm at incident angles varying from 55° to 70°. The resulting thicknesses were found to be around 1000 nm. A graded layer model, which allowed for accurate representation of the depth-dependent optical variations, was employed to model the properties of these TiO<sub>2</sub>-P25 films. This modeling approach provided deeper insights into the internal structure of the films, particularly how the graded structural characteristics impact the overall optical behavior. Understanding these depth-dependent variations is essential for optimizing the use of TiO<sub>2</sub>-P25 films in technologies such as solar cells and optical devices. |
| format | Article |
| id | doaj-art-8d800d7826694cebae682cc35c8d28df |
| institution | Kabale University |
| issn | 2079-4991 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj-art-8d800d7826694cebae682cc35c8d28df2025-01-24T13:44:08ZengMDPI AGNanomaterials2079-49912025-01-011529910.3390/nano15020099Optical Properties of Thick TiO<sub>2</sub>-P25 FilmsGrazia Giuseppina Politano0Department of Environmental Engineering, University of Calabria, 87036 Rende, ItalyIn this study, TiO<sub>2</sub>-P25 films on FTO substrates were synthesized using the sol-gel process and studied using Variable Angle Spectroscopy Ellipsometry (VASE) to determine their optical constants and thickness. The measurements were carried out at room temperature in the wavelength range of (300–900) nm at incident angles varying from 55° to 70°. The resulting thicknesses were found to be around 1000 nm. A graded layer model, which allowed for accurate representation of the depth-dependent optical variations, was employed to model the properties of these TiO<sub>2</sub>-P25 films. This modeling approach provided deeper insights into the internal structure of the films, particularly how the graded structural characteristics impact the overall optical behavior. Understanding these depth-dependent variations is essential for optimizing the use of TiO<sub>2</sub>-P25 films in technologies such as solar cells and optical devices.https://www.mdpi.com/2079-4991/15/2/99titanium dioxidecoatingsfilms |
| spellingShingle | Grazia Giuseppina Politano Optical Properties of Thick TiO<sub>2</sub>-P25 Films Nanomaterials titanium dioxide coatings films |
| title | Optical Properties of Thick TiO<sub>2</sub>-P25 Films |
| title_full | Optical Properties of Thick TiO<sub>2</sub>-P25 Films |
| title_fullStr | Optical Properties of Thick TiO<sub>2</sub>-P25 Films |
| title_full_unstemmed | Optical Properties of Thick TiO<sub>2</sub>-P25 Films |
| title_short | Optical Properties of Thick TiO<sub>2</sub>-P25 Films |
| title_sort | optical properties of thick tio sub 2 sub p25 films |
| topic | titanium dioxide coatings films |
| url | https://www.mdpi.com/2079-4991/15/2/99 |
| work_keys_str_mv | AT graziagiuseppinapolitano opticalpropertiesofthicktiosub2subp25films |