Tailoring the structural and optical properties of TiO2 thin films: A study of undoped, N-doped, and Fe-doped variants via sol-gel spin coating
In this study, pristine, nitrogen-doped, and iron-doped TiO2 films were individually prepared using the sol-gel spin coating method, focusing on analyzing their structural, morphological, and optical properties. Both undoped and doped TiO2 thin films had been deposited on glass substrates and anneal...
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| Language: | English |
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Elsevier
2025-07-01
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| Series: | Next Materials |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2949822825002758 |
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| author | Sondip Ghosh Shrabonti Saha Abdullah Al Moyeen Abdullah Al Mahmood M. Bodiul Islam |
| author_facet | Sondip Ghosh Shrabonti Saha Abdullah Al Moyeen Abdullah Al Mahmood M. Bodiul Islam |
| author_sort | Sondip Ghosh |
| collection | DOAJ |
| description | In this study, pristine, nitrogen-doped, and iron-doped TiO2 films were individually prepared using the sol-gel spin coating method, focusing on analyzing their structural, morphological, and optical properties. Both undoped and doped TiO2 thin films had been deposited on glass substrates and annealed at 500 °C. The structural characteristics of the films were examined through XRD, which confirmed their crystalline nature, with a preferred growth orientation along the (101) plane. Doping with nitrogen and iron individually caused variations in dislocation density, crystallite size, and micro strain. EDS verified the presence of the required elements. Optical properties were assessed using UV–vis spectroscopy over a wavelength range of 200–900 nm. Nitrogen doping resulted in a significant reduction in the band gap, while iron doping led to a smaller reduction. The nitrogen-doped TiO2 films exhibited a higher absorption coefficient and extinction coefficient compared to the iron-doped films. |
| format | Article |
| id | doaj-art-a1835b2652af4c839b49d5e332774e13 |
| institution | OA Journals |
| issn | 2949-8228 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Next Materials |
| spelling | doaj-art-a1835b2652af4c839b49d5e332774e132025-08-20T02:17:33ZengElsevierNext Materials2949-82282025-07-01810075710.1016/j.nxmate.2025.100757Tailoring the structural and optical properties of TiO2 thin films: A study of undoped, N-doped, and Fe-doped variants via sol-gel spin coatingSondip Ghosh0Shrabonti Saha1Abdullah Al Moyeen2Abdullah Al Mahmood3M. Bodiul Islam4Nano Synthesis Laboratory, Department of Glass & Ceramic Engineering, Rajshahi University of Engineering & Technology (RUET), Rajshahi 6204, BangladeshNano Synthesis Laboratory, Department of Glass & Ceramic Engineering, Rajshahi University of Engineering & Technology (RUET), Rajshahi 6204, BangladeshNano Synthesis Laboratory, Department of Glass & Ceramic Engineering, Rajshahi University of Engineering & Technology (RUET), Rajshahi 6204, BangladeshNano Synthesis Laboratory, Department of Glass & Ceramic Engineering, Rajshahi University of Engineering & Technology (RUET), Rajshahi 6204, BangladeshCorresponding author.; Nano Synthesis Laboratory, Department of Glass & Ceramic Engineering, Rajshahi University of Engineering & Technology (RUET), Rajshahi 6204, BangladeshIn this study, pristine, nitrogen-doped, and iron-doped TiO2 films were individually prepared using the sol-gel spin coating method, focusing on analyzing their structural, morphological, and optical properties. Both undoped and doped TiO2 thin films had been deposited on glass substrates and annealed at 500 °C. The structural characteristics of the films were examined through XRD, which confirmed their crystalline nature, with a preferred growth orientation along the (101) plane. Doping with nitrogen and iron individually caused variations in dislocation density, crystallite size, and micro strain. EDS verified the presence of the required elements. Optical properties were assessed using UV–vis spectroscopy over a wavelength range of 200–900 nm. Nitrogen doping resulted in a significant reduction in the band gap, while iron doping led to a smaller reduction. The nitrogen-doped TiO2 films exhibited a higher absorption coefficient and extinction coefficient compared to the iron-doped films.http://www.sciencedirect.com/science/article/pii/S2949822825002758Titanium dioxideThin filmsSol-gel spin coatingXRDSEM |
| spellingShingle | Sondip Ghosh Shrabonti Saha Abdullah Al Moyeen Abdullah Al Mahmood M. Bodiul Islam Tailoring the structural and optical properties of TiO2 thin films: A study of undoped, N-doped, and Fe-doped variants via sol-gel spin coating Next Materials Titanium dioxide Thin films Sol-gel spin coating XRD SEM |
| title | Tailoring the structural and optical properties of TiO2 thin films: A study of undoped, N-doped, and Fe-doped variants via sol-gel spin coating |
| title_full | Tailoring the structural and optical properties of TiO2 thin films: A study of undoped, N-doped, and Fe-doped variants via sol-gel spin coating |
| title_fullStr | Tailoring the structural and optical properties of TiO2 thin films: A study of undoped, N-doped, and Fe-doped variants via sol-gel spin coating |
| title_full_unstemmed | Tailoring the structural and optical properties of TiO2 thin films: A study of undoped, N-doped, and Fe-doped variants via sol-gel spin coating |
| title_short | Tailoring the structural and optical properties of TiO2 thin films: A study of undoped, N-doped, and Fe-doped variants via sol-gel spin coating |
| title_sort | tailoring the structural and optical properties of tio2 thin films a study of undoped n doped and fe doped variants via sol gel spin coating |
| topic | Titanium dioxide Thin films Sol-gel spin coating XRD SEM |
| url | http://www.sciencedirect.com/science/article/pii/S2949822825002758 |
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