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Meniscus-on-Demand Parallel 3D Nanoprinting.

Authors
  • Chen, Mojun1
  • Xu, Zhaoyi1
  • Kim, Jung Hyun2, 3
  • Seol, Seung Kwon2, 3
  • Kim, Ji Tae1
  • 1 Department of Mechanical Engineering , The University of Hong Kong , Pokfulam Road , Hong Kong , China. , (China)
  • 2 Nano Hybrid Technology Research Center , Korea Electrotechnology Research Institute (KERI) , Changwon-si , Gyeongsangnam-do 51543 , Republic of Korea. , (North Korea)
  • 3 Electrical Functional Material Engineering , Korea University of Science and Technology (UST) , Changwon-si , Gyeongsangnam-do 51543 , Republic of Korea. , (North Korea)
Type
Published Article
Journal
ACS Nano
Publisher
American Chemical Society
Publication Date
May 22, 2018
Volume
12
Issue
5
Pages
4172–4177
Identifiers
DOI: 10.1021/acsnano.8b00706
PMID: 29672027
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

Exploiting a femtoliter liquid meniscus formed on a nanopipet is a powerful approach to spatially control mass transfer or chemical reaction at the nanoscale. However, the insufficient reliability of techniques for the meniscus formation still restricts its practical use. We report on a noncontact, programmable method to produce a femtoliter liquid meniscus that is utilized for parallel three-dimensional (3D) nanoprinting. The method based on electrohydrodynamic dispensing enables one to create an ink meniscus at a pipet-substrate gap without physical contact and positional feedback. By guiding the meniscus under rapid evaporation of solvent in air, we successfully fabricate freestanding polymer 3D nanostructures. After a quantitative characterization of the experimental conditions, we show that we can use a multibarrel pipet to achieve parallel fabrication process of clustered nanowires with precise placement. We expect this technique to advance productivity in nanoscale 3D printing.

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