Electrical Conductivity Enhancement of a Large-scale Composite Film Containing Electrically Aligned Carbon Nanotubes

2012 ◽  
Vol 132 (11) ◽  
pp. 980-981
Author(s):  
Yu Kitamura ◽  
Shinya Hasegawa ◽  
Hiroaki Tone ◽  
Michihiko Nakano ◽  
Junya Suehiro
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Conductivity ◽  
Composite Film ◽  
Large Scale ◽  
Conductivity Enhancement ◽  
Aligned Carbon Nanotubes

Fabrication of a Large-Scale Conductive Composite Film Containing Electrically Aligned Carbon Nanotubes

2013 ◽  
Vol 699 ◽  
pp. 513-518 ◽  
Author(s):  
Yu Kitamura ◽  
Hiroaki Tone ◽  
Michihiko Nakano ◽  
Junya Suehiro
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Conductivity ◽  
Electric Field ◽  
Composite Film ◽  
Large Scale ◽  
Electrode System ◽  
Voltage Source ◽  
Conductive Composite ◽  
Array Electrode ◽  
Conductive Composite Film

Application of high electric field is effective for the alignment of carbon nanotubes (CNTs) in a nanocomposite film. The conventionally used one pair of parallel plate electrode is not applicable to large-sized nanocomposite fabrication due to limited output voltage of high voltage source. We have proposed a new method using parallel array electrode system to prepare large-scale conductive composite film containing aligned CNTs. In the electrode system, the electric field generated by an array of interdigitated parallel wire electrodes was applied to the CNTs by using an electric field averaging scheme. The array electrode system made a large-scale (15 × 15 cm2) composite film containing uniformly aligned CNTs. In this study, we investigated the relationship between weight fraction of the CNTs and electrical conductivity of the composite film. Measurement of the surface electric potential of the composite film after corona discharge exposure revealed that the film with an electrical conductivity increased by electric field-induced CNTs alignment could serve as an antistatic film.

Covalent Atomic Bridges Enable Unidirectional Enhancement of Electronic Transport in Aligned Carbon Nanotubes

2019 ◽  
Author(s):  
Mingguang Chen ◽  
Wangxiang Li ◽  
Anshuman Kumar ◽  
Guanghui Li ◽  
Mikhail Itkis ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Transport ◽  
Large Scale ◽  
The Novel ◽  
Electrical Measurements ◽  
Metal Atoms ◽  
Aligned Carbon Nanotubes ◽  
Transport Channels ◽  
Walled Carbon Nanotubes ◽  
Bulk Structures

<p>Interconnecting the surfaces of nanomaterials without compromising their outstanding mechanical, thermal, and electronic properties is critical in the design of advanced bulk structures that still preserve the novel properties of their nanoscale constituents. As such, bridging the p-conjugated carbon surfaces of single-walled carbon nanotubes (SWNTs) has special implications in next-generation electronics. This study presents a rational path towards improvement of the electrical transport in aligned semiconducting SWNT films by deposition of metal atoms. The formation of conducting Cr-mediated pathways between the parallel SWNTs increases the transverse (intertube) conductance, while having negligible effect on the parallel (intratube) transport. In contrast, doping with Li has a predominant effect on the intratube electrical transport of aligned SWNT films. Large-scale first-principles calculations of electrical transport on aligned SWNTs show good agreement with the experimental electrical measurements and provide insight into the changes that different metal atoms exert on the density of states near the Fermi level of the SWNTs and the formation of transport channels. </p>

An array of interdigitated parallel wire electrodes for preparing a large-scale nanocomposite film with aligned carbon nanotubes

2011 ◽  
Vol 44 (44) ◽  
pp. 445303 ◽  
Author(s):  
W Sun ◽  
H Tomita ◽  
S Hasegawa ◽  
Y Kitamura ◽  
M Nakano ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Nanocomposite Film ◽  
Large Scale ◽  
Parallel Wire ◽  
Aligned Carbon Nanotubes

Towards the production of large-scale aligned carbon nanotubes

2003 ◽  
Vol 372 (5-6) ◽  
pp. 860-865 ◽  
Author(s):  
Charanjeet Singh ◽  
Milo S.P Shaffer ◽  
Krzysztof K.K Koziol ◽  
Ian A Kinloch ◽  
Alan H Windle
Keyword(s):  
Carbon Nanotubes ◽  
Large Scale ◽  
Aligned Carbon Nanotubes

Covalent Atomic Bridges Enable Unidirectional Enhancement of Electronic Transport in Aligned Carbon Nanotubes

2019 ◽  
Author(s):  
Mingguang Chen ◽  
Wangxiang Li ◽  
Anshuman Kumar ◽  
Guanghui Li ◽  
Mikhail Itkis ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Transport ◽  
Large Scale ◽  
The Novel ◽  
Electrical Measurements ◽  
Metal Atoms ◽  
Aligned Carbon Nanotubes ◽  
Transport Channels ◽  
Walled Carbon Nanotubes ◽  
Bulk Structures

<p>Interconnecting the surfaces of nanomaterials without compromising their outstanding mechanical, thermal, and electronic properties is critical in the design of advanced bulk structures that still preserve the novel properties of their nanoscale constituents. As such, bridging the p-conjugated carbon surfaces of single-walled carbon nanotubes (SWNTs) has special implications in next-generation electronics. This study presents a rational path towards improvement of the electrical transport in aligned semiconducting SWNT films by deposition of metal atoms. The formation of conducting Cr-mediated pathways between the parallel SWNTs increases the transverse (intertube) conductance, while having negligible effect on the parallel (intratube) transport. In contrast, doping with Li has a predominant effect on the intratube electrical transport of aligned SWNT films. Large-scale first-principles calculations of electrical transport on aligned SWNTs show good agreement with the experimental electrical measurements and provide insight into the changes that different metal atoms exert on the density of states near the Fermi level of the SWNTs and the formation of transport channels. </p>

Large-Scale Synthesis of Aligned Carbon Nanotubes by Surface-Wave-Excited Microwave-Plasma-Enhanced Chemical Vapor Deposition

2002 ◽  
Vol 41 (Part 2, No. 12B) ◽  
pp. L1488-L1491 ◽  
Author(s):  
Hiroyuki Hayashi ◽  
Mizuho Koga ◽  
Jun Kashirajima ◽  
Kazumasa Takahashi ◽  
Yasuaki Hayashi ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Chemical Vapor Deposition ◽  
Surface Wave ◽  
Vapor Deposition ◽  
Large Scale ◽  
Microwave Plasma ◽  
Chemical Vapor ◽  
Aligned Carbon Nanotubes ◽  
Large Scale Synthesis

Large-Scale Synthesis of Aligned Carbon Nanotubes Using FeCl3as Floating Catalyst Precursor

2003 ◽  
Vol 15 (2) ◽  
pp. 580-585 ◽  
Author(s):  
Haoqing Hou ◽  
Andreas K. Schaper ◽  
Zeng Jun ◽  
Frank Weller ◽  
Andreas Greiner
Keyword(s):  
Carbon Nanotubes ◽  
Large Scale ◽  
Catalyst Precursor ◽  
Aligned Carbon Nanotubes ◽  
Large Scale Synthesis
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