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Issue 10, 2018
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Automated characterization and assembly of individual nanowires for device fabrication

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Abstract

The automated sorting and positioning of nanowires and nanotubes is essential to enabling the scalable manufacturing of nanodevices for a variety of applications. However, two fundamental challenges still remain: (i) automated placement of individual nanostructures in precise locations, and (ii) the characterization and sorting of highly variable nanomaterials to construct well-controlled nanodevices. Here, we propose and demonstrate an integrated, electric-field based method for the simultaneous automated characterization, manipulation, and assembly of nanowires (ACMAN) with selectable electrical conductivities into nanodevices. We combine contactless and solution-based electro-orientation spectroscopy and electrophoresis-based motion-control, planning and manipulation strategies to simultaneously characterize and manipulate multiple individual nanowires. These nanowires can be selected according to their electrical characteristics and precisely positioned at different locations in a low-conductivity liquid to form functional nanodevices with desired electrical properties. We validate the ACMAN design by assembling field-effect transistors (FETs) with silicon nanowires of selected electrical conductivities. The design scheme provides a key enabling technology for the scalable, automated sorting and assembly of nanowires and nanotubes to build functional nanodevices.

Graphical abstract: Automated characterization and assembly of individual nanowires for device fabrication

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Publication details

The article was received on 16 Jan 2018, accepted on 23 Apr 2018 and first published on 25 Apr 2018


Article type: Paper
DOI: 10.1039/C8LC00051D
Citation: Lab Chip, 2018,18, 1494-1503
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    Automated characterization and assembly of individual nanowires for device fabrication

    K. Yu, J. Yi and J. W. Shan, Lab Chip, 2018, 18, 1494
    DOI: 10.1039/C8LC00051D

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