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Gas‐Driven Ultrafast Reversible Switching of Super‐hydrophobic Adhesion on Palladium‐Coated Silicon Nanowires
Author(s) -
Seo Jungmok,
Lee Soonil,
Han Heetak,
Jung Hwae Bong,
Hong Juree,
Song Giyoung,
Cho Suk Man,
Park Cheolmin,
Lee Wooyoung,
Lee Taeyoon
Publication year - 2013
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201300979
Subject(s) - materials science , adhesion , palladium , adhesive , silicon , nanowire , nanotechnology , hydrophobic effect , chemical engineering , layer (electronics) , optoelectronics , composite material , organic chemistry , chemistry , engineering , catalysis
A gas‐driven ultrafast adhesion switching of water droplets on palladium‐coated Si nanowire arrays is demonstrated. By regulating the gas‐ambient between the atmosphere and H 2 , the super‐hydrophobic adhesion is repeatedly switched between water‐repellent and water‐adhesive. The capability of modulating the super‐hydrophobic adhesion on a super‐hydrophobic surface with a non‐contact mode could be applicable to novel functional lab‐on‐a‐chip platforms.