Journal
LANGMUIR
Volume 24, Issue 18, Pages 10421-10426Publisher
AMER CHEMICAL SOC
DOI: 10.1021/la801206m
Keywords
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Funding
- National Science Foundation [0422553]
- National Electric Energy Testing Research and Applications Center (NEETRAC)
- Div Of Civil, Mechanical, & Manufact Inn
- Directorate For Engineering [0422553] Funding Source: National Science Foundation
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Silicon is employed in a variety of electronic and optical devices such as integrated circuits, photovoltaics, sensors, and detectors. In this paper, Au-assisted etching of silicon has been used to prepare superhydrophobic surfaces that may add unique properties to such devices. Surfaces were characterized by contact angle and contact angle hysteresis. Superhydrophobic surfaces with reduced hysteresis were prepared by Au-assisted etching of pyramid-structured silicon surfaces to generate hierarchical surfaces. Consideration of the Laplace pressure on hydrophobized hierarchical surfaces gives insight into the manner by which contact is established at the liquid/composite surface interface. Light reflectivity from the etched surfaces was also investigated to assess application of these structures to photovoltaic devices.
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