Rewritable printing of ionic liquid nanofilm utilizing focused ion beam induced film wetting

Manipulating liquid flow over open solid substrate at nanoscale is important for printing, sensing, and energy devices. The predominant methods of liquid maneuvering usually involve complicated surface fabrications, while recent attempts employing external stimuli face difficulties in attaining nano...

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Bibliographic Details
Published in:Nature communications 2024-04, Vol.15 (1), p.2949-14, Article 2949
Main Authors: Gu, Haohao, Meng, Kaixin, Yuan, Ruowei, Xiao, Siyang, Shan, Yuying, Zhu, Rui, Deng, Yajun, Luo, Xiaojin, Li, Ruijie, Liu, Lei, Chen, Xu, Shi, Yuping, Wang, Xiaodong, Duan, Chuanhua, Wang, Hao
Format: Article
Language:English
Subjects:
639/766/189
639/925/927/351
639/925/930/543
Controllability
Deposition
Electrochemistry
Electrons
Electrostatic properties
External stimuli
Fabrication
Flow control
Fluidics
Helium
Humanities and Social Sciences
Ion beams
Ionic liquids
Liquid flow
multidisciplinary
Nanofluids
Science
Science (multidisciplinary)
Substrates
Wetting
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Summary:Manipulating liquid flow over open solid substrate at nanoscale is important for printing, sensing, and energy devices. The predominant methods of liquid maneuvering usually involve complicated surface fabrications, while recent attempts employing external stimuli face difficulties in attaining nanoscale flow control. Here we report a largely unexplored ion beam induced film wetting (IBFW) technology for open surface nanofluidics. Local electrostatic forces, which are generated by the unique charging effect of Helium focused ion beam (HFIB), induce precursor film of ionic liquid and the disjoining pressure propels and stabilizes the nanofilm with desired patterns. The IBFW technique eliminates the complicated surface fabrication procedures to achieve nanoscale flow in a controllable and rewritable manner. By combining with electrochemical deposition, various solid materials with desired patterns can be produced. With a helium focused ion beam, an ionic liquid can undergo induced wetting to flow into a desired pattern on a surface in a controllable, rewriteable manner. Combined with electrochemical deposition, patterned solid materials can be produced.
ISSN:2041-1723
2041-1723
DOI:10.1038/s41467-024-47018-9