High-purity carbon nanotubes synthesis method by an arc discharging in magnetic field
Метод синтеза высокочистых углеродных нанотрубок дуговым разрядом в магнитном поле
2002-07-22
SCID: 54.1/q795u7bc
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arc dischargeballistic transportcurrent densitymagnetic fieldmultiwalled carbon nanotubes
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Abstract (AI)
We developed a synthesis method of multiwalled carbon nanotubes (MWNTs), in which an arc discharging was controlled by a magnetic field. Using this method, we can obtain high-purity MWNTs (purity >95%) without purification which disorders walls of MWNTs. The current–voltage measurements show that the carriers would transport ballistically through our defect-free MWNTs with the maximum current density of ∼1011 A/m2. Therefore, our method provides defect-free/high-purity MWNTs as nanosized electric wires for device fabrication.
Key Findings
1
A magnetic-field-controlled arc-discharge method was developed to synthesize multiwalled carbon nanotubes (MWNTs).
2
Current–voltage measurements indicate ballistic carrier transport through the resulting defect-free MWNTs.
3
The MWNTs sustain a maximum current density of approximately 10^11 A/m², supporting their use as nanoscale electrical wires.
4
The method produces MWNTs with purity above 95% without post-synthesis purification that could damage their walls.
5
The method provides high-purity, defect-free MWNTs suitable for device fabrication.
Research Object
High-purity, defect-free multiwalled carbon nanotubes (MWNTs) synthesized by arc discharge in a magnetic field
Research Subject
The synthesis quality and ballistic electrical transport of MWNTs, including purity, preservation of wall structure, carrier transport, and maximum current density
Publication Details
Publication Date
2002-07-22
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