Cha, Sung-Chul Her, Eun Kyu Ko, Tae-Jun Kim, Seong Jin Roh, Hyunchul Lee, Kwang-Ryeol Oh, Kyu Hwan Moon, Myoung-Woon 2024-01-20T13:01:57Z 2024-01-20T13:01:57Z 2021-09-01 2013-02-01 0021-9797 https://pubs.kist.re.kr/handle/201004/128368 The thermal stability of superhydrophobic, nanostructured surfaces after thermal annealing was explored. Flat surfaces coated with hydrophobic diamond-like carbon (DLC) via plasma polymerization of hexamethyldisiloxane (HMDSO) showed a gradual decrease in the water contact angle from 90 degrees to 60 degrees while nanostructured surfaces maintained superhydrophobicity with more than 150 degrees for annealing temperatures between 25 and 300 degrees C. It was also found that surfaces with nanostructures having an aspect ratio of more than 5.2 may maintain superhydrophobicity for annealing temperatures as high as 350 degrees C; above this temperature, however, the hydrophobicity on surfaces with lower aspect ratio nanostructures gradually degraded. It was observed that regardless of the aspect ratios of the nanostructure, all superhydrophobic surfaces became superhydrophilic after annealing at temperatures higher than 500 degrees C. (C) 2012 Elsevier Inc. All rights reserved. English ACADEMIC PRESS INC ELSEVIER SCIENCE TRANSITIONS WETTABILITY IMPALEMENT SILICON Thermal stability of superhydrophobic, nanostructured surfaces Article 10.1016/j.jcis.2012.09.052 1 JOURNAL OF COLLOID AND INTERFACE SCIENCE, v.391, pp.152 - 157 JOURNAL OF COLLOID AND INTERFACE SCIENCE 391 152 157 scie scopus 000312039000020 2-s2.0-84868658537 Chemistry, Physical Chemistry Article TRANSITIONS WETTABILITY IMPALEMENT SILICON Superhydrophobicity Nanostructure Thermal stability Wetting transition