Photo-induced wettability of TiO{sub 2} film with Au buffer layer

Journal Article · Thu Apr 24 00:00:00 EDT 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4872789· OSTI ID:22271048

Purkayastha, Debarun Dhar; Sangani, L. D. Varma; Krishna, M. Ghanashyam ^[1]

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1. School of Physics, University of Hyderabad, Hyderabad-500046 (India)

The effect of thickness of Au buffer layer (15-25 nm) between TiO{sub 2} film and substrate on the wettability of TiO{sub 2} films is reported. TiO{sub 2} films grown on Au buffer layer have a higher contact angle of 96-;100° as compared to 47.6o for the film grown without buffer layer. The transition from hydrophobicity to hydrophilicity under UV irradiation occurs within 10 min. for the buffer layered films whereas it is almost 30 min. for the film grown without buffer layer. The enhanced photo induced hydrophilicity is shown to be surface energy driven.

• OSTI ID: 22271048
• Journal Information: AIP Conference Proceedings, Vol. 1591, Issue 1; Conference: 58. DAE solid state physics symposium 2013, Patiala, Punjab (India), 17-21 Dec 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
COMPARATIVE EVALUATIONS
GOLD
IRRADIATION
LAYERS
PHYSICAL RADIATION EFFECTS
SUBSTRATES
SURFACE ENERGY
THICKNESS
TITANIUM OXIDES
ULTRAVIOLET RADIATION
WETTABILITY