Analysis of the wettability transition and the phase transition of nitrogen-doped titanium dioxide films: introduction of a graphical model
| Parent link: | Ceramics International.— .— Amsterdam: Elsevier Science Publishing Company Inc. Vol. 51, iss. 28, pt. C.— 2025.— P. 59297-59309 |
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| Other Authors: | , , , , , , , |
| Summary: | Title screen Titanium oxide films have raised great interest in various fields owing to its unique properties such as chemical stability, nontoxicity, high oxidation property and low cost. It is a general aim to obtain titanium oxide films with a certain phase structure and wettability in order to acquire or tailor specific surface properties of these films. Nitrogen doping and post-annealing are applied to optimizing the structure and properties of titanium oxide films. Nitrogen doping leads to a monotonic phase transition from anatase to rutile. As a result of the phase transition, a decrease in grain size and degree of crystallinity is observed. Nitrogen-doping and post-annealing altered the wettability of the titanium dioxide films investigated by changing the film tension, as revealed by Raman spectroscopy. Post-annealing contributes to the hydrophilization of the film, due to the stress relaxation of grains formed by pulsed DC magnetron sputtering and new grains formed during the annealing process. As nitrogen doping increases, a rutile titanium dioxide film with low crystallinity is obtained. Post-annealing decreases the nitrogen content and generates a biphasic anatase/rutile structure with higher crystallinity in nitrogen-doped films that can be used for photocatalytic application. Moreover, the wettability of titanium dioxide film is reduced by post-annealing and a film with a specific water contact angle is achieved. In order to explain the observed phase transition, a novel graphical model of the phase transition from anatase to rutile triggered by locally introduced compression is proposed. Based on this model, the observed effects of various parameters on the titanium oxide phase transition can be explained, as they have already been observed in other studies Текстовый файл AM_Agreement |
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2025
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| Online Access: | https://doi.org/10.1016/j.ceramint.2025.10.148 |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=684120 |