A Study of the Wettability of Single-Walled Carbon Nanotube Films on Flat and Textured Si Substrates
- Authors
- Lee, Jongtaek; Park, Taehee; Lee, Junyoung; Yang, Jonghee; Yi, Whikun
- Issue Date
- Apr-2019
- Publisher
- AMER SCIENTIFIC PUBLISHERS
- Keywords
- Superhydrophobic; Single-Walled Carbon Nanotube Film; Textured Si Substrate; Contact Angle; Surface Treatments
- Citation
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.19, no.4, pp.2426 - 2430
- Indexed
- SCIE
- Journal Title
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
- Volume
- 19
- Number
- 4
- Start Page
- 2426
- End Page
- 2430
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/148010
- DOI
- 10.1166/jnn.2019.16011
- ISSN
- 1533-4880
- Abstract
- Contact angle measurements are investigated on the surface of single-walled carbon nanotube (SWNT) films directly formed on flat and textured Si substrates using a thermal chemical vapor deposition method. The SWNT films on the textured Si consist of a multiscale structure composed of nanoscale SWNTs and a microscale textured Si. They show superhydrophobic properties in which the water contact angle was around 161 degrees. A direct surface treatment to them increase the contact angle to 174 degrees. The reversible wettability of the SWNT films formed on the textured Si substrates is confirmed through the oxidation process using an acid mixture of nitric and sulfuric acids and a successive reduction procedure via heating treatment in an NH3 environment.
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