مشخصات پژوهش

عنوان	Design and fabrication of highly hydrophobic Mn nano-sculptured thin films and evaluation of surface properties on hydrophobicity
نوع پژوهش	مقاله چاپ‌شده
کلیدواژه‌ها	Sculptured thin films Hydrophobicity Surface free energy Cassie–Baxter state Wenzel state  Petal effect
چکیده	The wettability of solid surfaces is important from the aspects of both science and technology. The Mn nano-sculptured thin films were designed and fabricated by oblique angle deposition of Mn on glass substrates at room temperature. The obtained structure was characterized by field emission scanning electron microscopy and atomic force microscopy. The wettability of thin films samples was investigated by water contact angle (WCA). The 4-pointed helical star-shaped structure exhibits hydrophobicity with static WCAs of more than 133 for a 10-mg distilled water droplet. This sample also shows the rose petal effect with the additional property of high adhesion. The Mn nano-sculptured thin films also act as a sticky surface which is confirmed by hysteresis of the contact angle obtained from advancing and receding contact angles measurements. Physicochemical property of liquid phase could effectively change the contact angle, and polar solvents in contact with hydrophobic solid surfaces do not necessarily show high contact angle value.
پژوهشگران	هادی سوالونی (نفر دوم)، مهران قلی پور شهرکی (نفر سوم)، سمیه حسینی (نفر اول)