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Formation of textured Al thin film on periodic microswelling structure fabricated on silicone rubber surface to realize superhydrophobicity
Author(s) -
Okoshi Masayuki
Publication year - 2019
Publication title -
electronics and communications in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.131
H-Index - 13
eISSN - 1942-9541
pISSN - 1942-9533
DOI - 10.1002/ecj.12176
Subject(s) - silicone rubber , materials science , scanning electron microscope , thin film , composite material , silicone , deposition (geology) , natural rubber , contact angle , excimer laser , optics , laser , nanotechnology , paleontology , sediment , biology , physics
Periodic microswelling structure was fabricated on silicone rubber by the 193‐nm ArF excimer laser induced photodissociation of silicone; subsequent deposition of Al thin film on the sample surface significantly improved the superhydrophobicity. To discuss the improvement, Al thin film was deposited on a flat slide glass, silicone rubber, and silicone resin substrates. Under a scanning electron microscope, textured structure of Al thin film was found only on the silicone rubber. As a result, contact angle of water on the sample with the textured Al indicated to be approximately 165°, compared with the case of 155° before Al deposition.