Pou Liu

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Field emission properties of individual multi-walled carbon nanotubes (MWNT) have been investigated and applied to several nano devices. Field emission current changes with the distance between the tip of a carbon nanotube (CNT) emitter and a counterpart anode, which can be applied as the principle for an approaching sensor to detect nanometer scale(More)
Prototypes of individual carlbon nanotube (CNT)l based position sensors are presented on the bases of the field emission from a nanotube emitter, a telescoping (inter-layer sliding) multi-walled nanotube and a sliding nanotube on an Aui substrate. These sensors are constructed by nanomanipulation and featured by their compact sizes, simple structures, andl(More)
We report a single tungsten nanowire successfully grown by controlling the distance between the emitter and substrates with a robotic nanomanipulator moved at a speed of 15 nm/s. When we draw the emitter far from the substrates during electron emission, the longest nanowire at the tip can grow continually, because the electron field at the tip is stronger(More)
In this paper, a series of in situ nanofabrication techniques of nanostructures, including cutting, bending and welding of carbon nanotubes (CNTs), inside a field emission scanning electron microscope (FE-SEM) is reported. In the CNT cutting technique, a CNT was exposed to a low energy beam assisted with 1 seem oxygen gas flow. The proposed technique is(More)
We report that a series of in situ nanofabrication techniques of nanostructures, including cutting, bending and soldering of carbon nanotubes (CNTs), inside a field emission scanning electron microscope (FE-SEM) used for nanoassembly of nanostructures. The CNTs can be cut with electron beam assisted with oxygen gas. The cutting was developed for the bending(More)
We report nanomanipulation and nanoassembly of carbon nanotubes (CNTs) through nanorobotic manipulation inside electron microscopes. A hybrid nanorobotic manipulation system, which is integrated with a nanorobotic manipulator inside a transmission electron microscope (TEM) and nanorobotic manipulators inside a scanning electron microscope (SEM), is used.(More)
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