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Mass transport at attogram (10−18 g) level inside, from, between, and into nanochannels is of growing interest from both fundamental and application perspectives. Nanorobotic manipulation inside a transmission electron microscope (TEM) enables these investigations through its ability to position and assemble pipes, to deliver the mass in a controlled way, and to tune and characterize these systems...
A nanotube fountain pen (NFP) is designed for the fabrication of three-dimensional (3D) complex nanostructures by adding a reservoir to the injector for electromigration-based deposition (EMBD). This enhanced EMBD technique is prototyped using a metal-filled carbon nanotude (m@CNT) as an pen-tip injector and a network of m@CNTs as a reservoir for continuous mass feeding. The deposition is based on...
Electromigration-based deposition (EMBD) is an additive nanolithography technology for the fabrication of three-dimensional (3D) nanostructures. Key techniques for extending the capability of EMBD have been tackled experimentally including the deposition against a non-conductive surface, shape control of the as-deposited nanostructure, and continuous mass feeding. The process is based on nanofluidic...
Electromigration-based deposition (EMBD) is proposed for the fabrication of three-dimensional (3D) metallic nanostructures. The process is based on nanofluidic mass delivery at the attogram scale from metal-filled carbon nanotubes (m@CNTs) using nanorobotic manipulation inside a transmission electron microscope. By attaching a conductive probe to the sidewall of the CNT, it has been shown that mass...
We report an experimental investigation into the controlled fabrication of metallic nanospheres on the tip of nanotubes. The fabrication process, nanobubbling, is based on nanofluidic mass delivery at the attogram scale using metal-filled carbon nanotubes (CNTs). Two methods have been investigated including electron-beam-induced bubbling (EBIB) and electromigration-based bubbling (EMBB). Under the...
Nanometer-scale plumbing systems that can transport attograms of material are no longer a pipe dream. Carbon nanotubes (CNTs), with their extremely strong mechanical strength and nanometer-sized hollow cores, are ideal candidates for nanochannels. Experimental setup for investigating the mechanisms of mass delivery is demonstrated in this article. Two Cu-filled CNTs supported on a sample holder and...
Inter-nanotube mass transport along the central pores of carbon nanotubes (CNTs) is a fundamental problem for CNT-based nanofluidic devices. Besides the interest for testing classical theories of fluid flow at the nanoscale, CNT fluidic junctions are basic elements for more complex fluidic systems. Controlled melting, evaporation and flowing of copper and tin intra-/inter-nanotube shells are investigated...
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