Conciliating surface superhydrophobicities and mechanical strength of porous silicon films

doi:10.1016/j.apsusc.2010.10.056

CORC > 兰州理工大学 > 兰州理工大学

	Conciliating surface superhydrophobicities and mechanical strength of porous silicon films
	Wang, Fuguo 1,2; Zhao, Kun 3; Cheng, Jinchun 1; Zhang, Junyan 1
刊名	APPLIED SURFACE SCIENCE
	2011-01-15
卷号	257 期号:7 页码:2752-2755
关键词	Superhydrophobic surfaces Porous silicon Mechanical properties
ISSN号	0169-4332
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.
资助项目	National Natural Science Foundation of China[20673131]
WOS研究方向	Chemistry ; Materials Science ; Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000285963200056
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/35145]
专题	兰州理工大学石油化工学院
通讯作者	Zhang, Junyan
作者单位	1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Lanzhou Univ Technol, Coll Petrochem Technol, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Wang, Fuguo,Zhao, Kun,Cheng, Jinchun,et al. Conciliating surface superhydrophobicities and mechanical strength of porous silicon films[J]. APPLIED SURFACE SCIENCE,2011,257(7):2752-2755.
APA	Wang, Fuguo,Zhao, Kun,Cheng, Jinchun,&Zhang, Junyan.(2011).Conciliating surface superhydrophobicities and mechanical strength of porous silicon films.APPLIED SURFACE SCIENCE,257(7),2752-2755.
MLA	Wang, Fuguo,et al."Conciliating surface superhydrophobicities and mechanical strength of porous silicon films".APPLIED SURFACE SCIENCE 257.7(2011):2752-2755.