Abstract
ZnO:Ga:Cl ceramics were sintered using chemical vapor transport technique. Ga content was varied in a range of 0−10 mol %. The wettability of unpolished and polished surface of ZnO:Ga:Cl ceramics was investigated. The polished and etched surface of ZnO ceramics is in a hydrophilic state. The presence of Ga impurity leads to a strong increase in the water contact angle to 131°. This behavior is attributed to a high concentration of free electrons, which suppress the formation of intrinsic surface defects acting as traps for water molecules. Air pockets on unpolished surfaces of ZnO:Ga:Cl ceramics are an additional factor that increases the water contact angle.
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Acknowledgment
This work was supported by the Ministry of Education, Culture and Research of Moldova under the project No. 20.80009.5007.16 (Photosensitizers for applications in pharmaceutical medicine and photovoltaics).
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Colibaba, G.V., Costriucova, N., Rusnac, D., Busuioc, S., Monaico, E.V. (2022). Wettability of Highly Conductive ZnO:Ga:Cl CVT Ceramics with Various Ga Content. In: Tiginyanu, I., Sontea, V., Railean, S. (eds) 5th International Conference on Nanotechnologies and Biomedical Engineering. ICNBME 2021. IFMBE Proceedings, vol 87. Springer, Cham. https://doi.org/10.1007/978-3-030-92328-0_78
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