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题名: Mechanically Modulated Dewetting by Atomic Force Microscope for Micro- and Nano- Droplet Array Fabrication
作者: 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 WR(李文荣)
作者部门: 机器人学研究室
关键词: ULTRATHIN POLYMER-FILMS ; THIN LIQUID-FILMS ; PATTERNED SURFACES ; LENS ARRAYS ; RUPTURE ; INSTABILITY
刊名: SCIENTIFIC REPORTS
ISSN号: 2045-2322
出版日期: 2014
卷号: 4, 页码:1-7
收录类别: SCI
产权排序: 1
摘要: Organizing 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.
语种: 英语
WOS记录号: WOS:000342907100006
WOS标题词: Science & Technology
类目[WOS]: Multidisciplinary Sciences
关键词[WOS]: ULTRATHIN POLYMER-FILMS ; THIN LIQUID-FILMS ; PATTERNED SURFACES ; LENS ARRAYS ; RUPTURE ; INSTABILITY
研究领域[WOS]: Science & Technology - Other Topics
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内容类型: 期刊论文
URI标识: http://ir.sia.cn/handle/173321/15267
Appears in Collections:机器人学研究室_期刊论文

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文件名: Mechanically Modulated Dewetting by Atomic Force Microscope for Micro- and Nano- Droplet Array Fabrication.pdf
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