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Mechanically Modulated Dewetting by Atomic Force Microscope for Micro- and Nano- Droplet Array Fabrication
Wang FF(王飞飞); Li P(李盼); Wang D(王栋); Li LH(李龙海); Xie, Shuangxi; Liu LQ(刘连庆); Wang YC(王越超); Li WJ(李文荣)
Department机器人学研究室
Source PublicationSCIENTIFIC REPORTS
ISSN2045-2322
2014
Volume4Pages:1-7
Indexed BySCI
WOS IDWOS:000342907100006
Contribution Rank1
Funding OrganizationNational Natural Science Foundation of China [61304251]; CAS-Croucher Joint Lab Scheme [9500011]; CAS FEA International Partnership Program for Creative Research Teams; Hong Kong Research Grants Council [CityU 116912]
KeywordUltrathin Polymer-films Thin Liquid-films Patterned Surfaces Lens Arrays Rupture Instability
AbstractOrganizing a material into well-defined patterns during the dewetting process provides an attractive micro-/nano-fabrication method without using a conventional lithographic process, and hence, offers potential applications in organic electronics, optics systems, and memory devices. We report here how the mechanical modification of polymer surface by an Atomic Force Microscope (AFM) can be used to guide thin film dewetting evolution and break the intrinsic spatial correlation of spontaneous instability. An AFM is used to implement the mechanical modification of progressively narrow grids to investigate the influence of pattern size on the modulation of ultrathin polystyrene films dewetting evolution. For films with different initial thicknesses, when grid size is close to or below the characteristic wavelength of instability, the spinodal dewetting is suppressed, and film rupture is restricted to the cutting trench. We will show in this paper it is possible to generate only one droplet per gridded area on a thin film subsequent to nucleation dominated dewetting on a non-patterned substrate. Furthermore, when the grid periodicity exceeds the spinodal length, the number of droplets in predefined areas gradually approaches that associated with unconfined dewetting.
Language英语
WOS HeadingsScience & Technology
WOS SubjectMultidisciplinary Sciences
WOS KeywordULTRATHIN POLYMER-FILMS ; THIN LIQUID-FILMS ; PATTERNED SURFACES ; LENS ARRAYS ; RUPTURE ; INSTABILITY
WOS Research AreaScience & Technology - Other Topics
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sia.cn/handle/173321/15267
Collection机器人学研究室
Corresponding AuthorLiu LQ(刘连庆); Li WJ(李文荣)
Affiliation1.State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
2.University of Chinese Academy of Sciences, Beijing 100049, China
3.Department of Mechanical and Biomedical Engineering, City University of Hong Kong, Kowloon Tong, Hong Kong
Recommended Citation
GB/T 7714
Wang FF,Li P,Wang D,et al. Mechanically Modulated Dewetting by Atomic Force Microscope for Micro- and Nano- Droplet Array Fabrication[J]. SCIENTIFIC REPORTS,2014,4:1-7.
APA Wang FF.,Li P.,Wang D.,Li LH.,Xie, Shuangxi.,...&Li WJ.(2014).Mechanically Modulated Dewetting by Atomic Force Microscope for Micro- and Nano- Droplet Array Fabrication.SCIENTIFIC REPORTS,4,1-7.
MLA Wang FF,et al."Mechanically Modulated Dewetting by Atomic Force Microscope for Micro- and Nano- Droplet Array Fabrication".SCIENTIFIC REPORTS 4(2014):1-7.
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