Abstract
A pyramid/nanowire binary structure is fabricated on the silicon surface via a NaOH anisotropic etching technique followed by a silver-catalyzed chemical etching process. The silicon surface shows a stable superhydrophobicity with high contact angle of 162° and small sliding angle less than 2° after being modified with octadecyltrichlorosilane (ODTS). The binary roughness of pyramid/nanowire structure presents a stable composite interface of silicon-air-water and responsible for the superhydrophobicity of silicon surface.
Original language | English |
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Pages (from-to) | 7147-7152 |
Number of pages | 6 |
Journal | Applied Surface Science |
Volume | 255 |
Issue number | 16 |
DOIs | |
Publication status | Published - May 30 2009 |
Externally published | Yes |
ASJC Scopus Subject Areas
- Condensed Matter Physics
- Surfaces and Interfaces
- Surfaces, Coatings and Films
Keywords
- Binary roughness
- Contact angle hysteresis
- Pyramid/nanowire binary structure
- Silicon
- Superhydrophobicity