Conciliating surface superhydrophobicities and mechanical strength of porous silicon films

doi:10.1016/j.apsusc.2010.10.056

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	Conciliating surface superhydrophobicities and mechanical strength of porous silicon films
	Fuguo Wang 2,3; Kun Zhao 1; Jinchun Cheng 3; Junyan Zhang 3
刊名	Applied Surface Science
	2010-10
卷号	257 期号:257 页码:2752–2755
关键词	Superhydrophobic surfaces Porous silicon Mechanical properties
ISSN号	01694332
DOI	10.1016/j.apsusc.2010.10.056
英文摘要	Hydrophobic surfaces on Mechanical stable macroporous silicon films were prepared by electrochemical etching with subsequent octadecyltrichlorosilane (OTS) modification. The surface morphologies were controlled by current densities and the mechanical properties were adjusted by their corresponding porosities. Contrast with the smooth macroporous silicon films with lower porosities (34.1%) and microporous silicon with higher porosities (97%), the macroporous film with a rough three-dimension (3D) surface and a moderate pore to cross-section area ratio (37.8%, PSi2') exhibited both good mechanical strength (Yong' modulus, shear modulus and collapse strength are 64.2, 24.1 and 0.32 GPa, respectively) and surface superhydrophobicity (water contact angle is 158.4 +/- 2 degrees and sliding angle is 2.7 +/- 1 degrees). This result revealed that the surface hydrophobicities (or the surface roughness) and mechanical strength of porous films could be conciliated by pore to cross-section area ratios control and 3D structures construction. Thus, the superhydrophobic surfaces on mechanical stable porous films could be obtained by 3D structures fabrication on porous film with proper pore to cross-section area ratios. (C) 2010 Elsevier B. V. All rights reserved.
WOS研究方向	Chemistry ; Materials Science ; Physics
语种	英语
出版者	Elsevier B.V., Netherlands
WOS记录号	WOS:000285963200056
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/103291]
专题	兰州理工大学研究生院
通讯作者	Junyan Zhang
作者单位	1.Graduate School of the Chinese Academy of Sciences, Beijing 100039, China 2.College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, China 3.State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
推荐引用方式 GB/T 7714	Fuguo Wang,Kun Zhao,Jinchun Cheng,et al. Conciliating surface superhydrophobicities and mechanical strength of porous silicon films[J]. Applied Surface Science,2010,257(257):2752–2755.
APA	Fuguo Wang,Kun Zhao,Jinchun Cheng,&Junyan Zhang.(2010).Conciliating surface superhydrophobicities and mechanical strength of porous silicon films.Applied Surface Science,257(257),2752–2755.
MLA	Fuguo Wang,et al."Conciliating surface superhydrophobicities and mechanical strength of porous silicon films".Applied Surface Science 257.257(2010):2752–2755.