Transition from superhydrophilic to superhydrophobic of silicon water by a combination of laser treatment and fluoropolymer deposition

0492626 - FZÚ 2019 RIV GB eng J - Článek v odborném periodiku
Starinskiy, S.V. - Bulgakov, Alexander - Gatapova, E.Y. - Shukhov, Y.G. - Sulyaeva, V.S. - Timoshenko, N.I. - Safonov, A.I.
Transition from superhydrophilic to superhydrophobic of silicon water by a combination of laser treatment and fluoropolymer deposition.
Journal of Physics D-Applied Physics. Roč. 51, č. 25 (2018), s. 1-7, č. článku 255307. ISSN 0022-3727. E-ISSN 1361-6463
Grant CEP: GA MŠMT LO1602; GA ČR GA16-12960S; GA MŠMT EF15_003/0000445
Grant ostatní: OP VVV - BIATRI(XE) CZ.02.1.01/0.0/0.0/15_003/0000445
Institucionální podpora: RVO:68378271
Klíčová slova: superhydrophilic * superhydrophobic * fluoropolymer * laser treatment * HWCVD
Obor OECD: Optics (including laser optics and quantum optics)
Impakt faktor: 2.829, rok: 2018

We propose a novel approach for synthesizing silicon surfaces ensuring arbitrary apparent contact angle within the range from 0 degrees to 170 degrees for water. Superhydrophilicity of silicon substrates is achieved by nanosecond laser treatment and subsequent change in the contact angle is obtained by deposition of fluoropolymer films with different thicknesses by a hot wire chemical vapor deposition (HWCVD) method. The deposited film thickness needed to obtain superhydrophobicity was determined. The wettability properties of the produced fluoropolymer-silicon system are analyzed using the Wenzel and Cassie theories.
Trvalý link: http://hdl.handle.net/11104/0286078