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Dey, B., Bulou, S., Gaulain, T., Ravisy, W., Richard-Plouet, M., Goullet, A., Granier, A. & Choquet, P. (2020) Anatase TiO2 deposited at low temperature by pulsing an electron cyclotron wave resonance plasma source. Sci Rep, 10 21952. 
Added by: Richard Baschera (2021-01-14 08:19:03)   Last edited by: Richard Baschera (2021-01-14 08:19:58)
Type de référence: Article
DOI: 10.1038/s41598-020-78956-1
Numéro d'identification (ISBN etc.): 2045-2322
Clé BibTeX: Dey2020
Voir tous les détails bibliographiques
Créateurs: Bulou, Choquet, Dey, Gaulain, Goullet, Granier, Ravisy, Richard-Plouet
Collection: Sci Rep
Consultations : 8/413
Indice de consultation : 7%
Indice de popularité : 1.75%
Liens URLs     http://www.nature. ... s41598-020-78956-1
Photocatalytic surfaces have the potentiality to respond to many of nowadays societal concerns such as clean H 2 generation, CO 2 conversion, organic pollutant removal or virus inactivation. Despite its numerous superior properties, the wide development of TiO 2 photocatalytic surfaces suffers from important drawbacks. Hence, the high temperature usually required ({>} 450 °C) for the synthesis of anatase TiO 2 is still a challenge to outreach. In this article, we report the development and optimisation of an ECWR-PECVD process enabling the deposition of anatase TiO 2 thin films at low substrate temperature. Scanning of experimental parameters such as RF power and deposition time was achieved in order to maximise photocatalytic activity. The careful selection of the deposition parameters (RF power, deposition time and plasma gas composition) enabled the synthesis of coatings exhibiting photocatalytic activity comparable to industrial references such as P25 Degussa and Pilkington Activ at a substrate temperature below 200 °C. In addition, to further decrease the substrate temperature, the interest of pulsing the plasma RF source was investigated. Using a duty cycle of 50%, it is thus possible to synthesise photocatalytic anatase TiO 2 thin films at a substrate temperature below 115 °C with a deposition rate around 10 nm/min.
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