干旱区生态环境知识资源中心(Arid): Fabrication of Biomimetic Micropatterned Surfaces by Sol-Gel Dewetting

Arid

DOI	10.1002/admi.201801629
	Fabrication of Biomimetic Micropatterned Surfaces by Sol-Gel Dewetting
	Colusso, Elena 1,2,3; Martucci, Alessandro 3; Neto, Chiara 1,2
通讯作者	Neto, Chiara
来源期刊	ADVANCED MATERIALS INTERFACES
ISSN	2196-7350
出版年	2019
卷号	6 期号:4
英文摘要	Dewetting of thin polymer films has been extensively investigated as a way to generate patterned surfaces. In this paper, the controlled dewetting of sol-gel thin films induced by solvent annealing is reported. The key factors that control the dewetting process are identified and patterns with tunable diameter between 5 and 80 mu m and tunable height between 1 and 10 mu m are fabricated on a large scale. By changing the chemistry of the sol-gel system, patterns with wetting contrast, consisting of hydrophilic bumps on a hydrophobic layer, are realized. These surfaces are inspired by the exoskeleton of the Namib desert beetle and are amenable to application in atmospheric water capture, as they facilitate condensation and allow for water droplets to roll off at low critical volumes (6-8 mu L), similar to the value predicted for the Namib desert beetle. The approach presented is simple, scalable, and can be applied to a wide range of substrates including glass. Transparent micropatterns are realized with high transmittance in the visible range, suitable for fabrication of coatings on windows or microlens arrays.
英文关键词	biomimicry dewetting micropattern sol-gel water condensation wettability
类型	Article
语种	英语
国家	Australia ; Italy
收录类别	SCI-E
WOS记录号	WOS:000459485500007
WOS关键词	POLYMER-FILMS ; SELF-ORGANIZATION ; MICROLENS ARRAYS ; WATER CAPTURE ; HEAT-TRANSFER ; COATINGS ; SILICA ; CONDENSATION ; TEMPERATURE ; SUBSTRATE
WOS类目	Chemistry, Multidisciplinary ; Materials Science, Multidisciplinary
WOS研究方向	Chemistry ; Materials Science
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/213874
作者单位	1.Univ Sydney, Sch Chem, Sydney, NSW 2006, Australia; 2.Univ Sydney, Nano Inst, Sydney, NSW 2006, Australia; 3.Univ Padua, Dipartimento Ingn Ind, Via Marzolo 9, I-35131 Padua, Italy
推荐引用方式 GB/T 7714	Colusso, Elena,Martucci, Alessandro,Neto, Chiara. Fabrication of Biomimetic Micropatterned Surfaces by Sol-Gel Dewetting[J],2019,6(4).
APA	Colusso, Elena,Martucci, Alessandro,&Neto, Chiara.(2019).Fabrication of Biomimetic Micropatterned Surfaces by Sol-Gel Dewetting.ADVANCED MATERIALS INTERFACES,6(4).
MLA	Colusso, Elena,et al."Fabrication of Biomimetic Micropatterned Surfaces by Sol-Gel Dewetting".ADVANCED MATERIALS INTERFACES 6.4(2019).