Superhydrophobic and low light reflectivity silicon surfaces fabricated by hierarchical etching

Langmuir : the ACS Journal of Surfaces and Colloids
Yonghao XiuC P Wong

Abstract

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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Citations

Apr 23, 2014·ACS Applied Materials & Interfaces·Longquan ChenKai Zhang
Aug 4, 2012·Journal of Colloid and Interface Science·Muhammad Akram RazaBene Poelsema
Jan 23, 2010·Journal of Colloid and Interface Science·Shoujun ZhuBai Yang
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Jul 21, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·Choongyeop Lee, Chang-Jin C J Kim
Mar 9, 2010·Langmuir : the ACS Journal of Surfaces and Colloids·Yan LiuC P Wong
Mar 12, 2010·Langmuir : the ACS Journal of Surfaces and Colloids·Jianguo Fan, Yiping Zhao
Dec 18, 2010·Langmuir : the ACS Journal of Surfaces and Colloids·Jung-Pil LeeSoojin Park
Mar 2, 2011·Langmuir : the ACS Journal of Surfaces and Colloids·M K DawoodW K Choi
Feb 13, 2020·Langmuir : the ACS Journal of Surfaces and Colloids·H Yildirim Erbil

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