Voltage-Controlled Deposition of Dispersed Carbon Nanotubes onto a Conducting Substrate Without a Catalyst

2018 ◽  
Vol 10 (6) ◽  
pp. 564-567 ◽  
Author(s):  
Subhodip Maulik ◽  
Srismrita Basu ◽  
Hsuan-Chao Hou ◽  
Theda Daniels-Race
Keyword(s):  
Carbon Nanotubes ◽  
Conducting Substrate ◽  
Controlled Deposition

Facile, size-controlled deposition of highly dispersed gold nanoparticles on nitrogen carbon nanotubes for hydrogen sensing

2011 ◽  
Vol 160 (1) ◽  
pp. 1034-1042 ◽  
Author(s):  
Abu Z. Sadek ◽  
Vipul Bansal ◽  
Dougal G. McCulloch ◽  
Paul G. Spizzirri ◽  
Kay Latham ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Gold Nanoparticles ◽  
Hydrogen Sensing ◽  
Highly Dispersed ◽  
Controlled Deposition ◽  
Size Controlled ◽  
Dispersed Gold

Dielectrophoretic Deposition of Carbon Nanotubes with Controllable Density and Alignment

2007 ◽  
Vol 1057 ◽  
Author(s):  
Jason Moscatello ◽  
Vijaya Kayastha ◽  
Archana Pandey ◽  
Benjamin Ulmen ◽  
Yoke Khin Yap
Keyword(s):  
Carbon Nanotubes ◽  
Early Stage ◽  
Nanoelectronic Devices ◽  
Dielectric Particles ◽  
Stage Of Development ◽  
Controlled Deposition ◽  
Walled Cnts

ABSTRACTControlled deposition of carbon nanotubes (CNTs) across desired electrodes is important for the fabrication of nanoelectronic devices. Dieletrophoresis (DEP) has been recognized as a convenient and affordable technique for the deposition of nanotubes and nanowires on electrodes. Although DEP has been quite well studied for dielectric particles, the application for depositing nanotubes is still at the early stage of development. Here, we show that multi-walled CNTs can be deposited by DEP with controllable density and degree of alignment.

Controlled Deposition and Applied Field Alignment of Single Walled Carbon Nanotubes for CNT Device Fabrication.

2002 ◽  
Vol 739 ◽  
Author(s):  
Jan Smits ◽  
Buzz Wincheski ◽  
JoAnne Ingram ◽  
Neal Watkins ◽  
Jeff Jordan
Keyword(s):  
Carbon Nanotubes ◽  
Electronic Transport ◽  
Device Fabrication ◽  
Self Assembled Monolayer ◽  
Si Substrates ◽  
Metallic Contacts ◽  
Controlled Deposition ◽  
Walled Carbon Nanotubes ◽  
Single Walled Cnts ◽  
Walled Cnts

ABSTRACTCarbon nanotubes (CNTs) offer great potential for advanced sensing devices due to their unique electronic transport properties. However, a significant obstacle to the realization of practical CNT devices is the formation of controlled, reliable and reproducible CNT to metallic contacts. In this work, a procedure for the deposition and alignment of CNTs onto metallic electrodes using chemically functionalized lithographic patterns is reported. This method uses photo and electron beam lithography to pattern simple Cr/Au thin film circuits on oxidized Si substrates. The circuits are then re-patterned with a self-assembled monolayer (SAM) of 3-aminopropyltriethoxysilane (APTES) to specify desired CNT locations between electrodes. The application of an electric field to the metallic contacts during the deposition of solution suspended single walled CNTs causes alignment of the CNTs in the field direction. This method consistently produces aligned CNTs in the defined locations.

Controlled deposition of individual single-walled carbon nanotubes on chemically functionalized templates

1999 ◽  
Vol 303 (1-2) ◽  
pp. 125-129 ◽  
Author(s):  
Jie Liu ◽  
Michael J. Casavant ◽  
Michael Cox ◽  
D.A. Walters ◽  
P. Boul ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Controlled Deposition ◽  
Walled Carbon Nanotubes

Controlled deposition of carbon nanotubes on a patterned substrate

2000 ◽  
Vol 462 (1-3) ◽  
pp. 195-202 ◽  
Author(s):  
K.H. Choi ◽  
J.P. Bourgoin ◽  
S. Auvray ◽  
D. Esteve ◽  
G.S. Duesberg ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Patterned Substrate ◽  
Controlled Deposition

Dielectrophoretic Assembly of Organized Carbon Nanotubes and Thin Films

2010 ◽  
Author(s):  
Pengfei Li ◽  
Wei Xue
Keyword(s):  
Thin Films ◽  
Carbon Nanotubes ◽  
Nanoelectromechanical Systems ◽  
Experimental Conditions ◽  
Energy Devices ◽  
Nanotube Bundles ◽  
Wide Range ◽  
Multi Walled Carbon Nanotubes ◽  
Controlled Deposition ◽  
Walled Carbon Nanotubes

In this paper, we investigate the dielectrophoretic assembly of organized carbon nanotube (CNT) and CNT thin films. Both single-walled carbon nanotubes (SWNTs) and multi-walled carbon nanotubes (MWNTs) are employed in our experiments. Electrodes with “teeth”-like patterns are fabricated to study the influence of electrode width on CNT deposition and alignment. The entire fabrication process is compatible with optical lithography based techniques. Therefore, the fabrication cost is low and the resulting devices are inexpensive. SWNT and MWNT solutions are prepared with different concentrations. The alignment of SWNT/MWNT thin films and small bundles are achieved under the optimized experimental conditions. The electrical properties of these samples are characterized. The results demonstrate that the controlled deposition of CNT thin films using dielectrophoresis is highly repeatable. The alignment of small nanotube bundles can only be achieved using narrow electrodes and low-concentration solutions. Our investigation shows that it is possible to deposit a controllable amount of CNTs in desirable locations using dielectrophoresis. This research has the potential to enable the development of practical and inexpensive CNT devices that can be used in a wide range of applications: nanoelectronics, nano-bioelectronics, nanoelectromechanical systems (NEMS), and energy devices.

Controlled deposition of aligned carbon nanotubes by floating electrodes dielectrophoresis

2012 ◽  
Author(s):  
Poornendu Chaturvedi ◽  
Abhilasha Chouksey ◽  
Anant Naik ◽  
Anand Kumar ◽  
Vajinder Singh ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Aligned Carbon Nanotubes ◽  
Controlled Deposition

Controlled Deposition and Electrical Characterization of Multi-Wall Carbon Nanotubes

2008 ◽  
Vol 3 ◽  
pp. 25-32 ◽  
Author(s):  
S.A. Moshkalev ◽  
J. Leon ◽  
Carla Veríssimo ◽  
A.R. Vaz ◽  
A. Flacker ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Ion Irradiation ◽  
Ion Beam ◽  
Electrical Characterization ◽  
Electrical Parameters ◽  
Scale Separation ◽  
Fabricated Metal ◽  
Multi Wall Carbon Nanotubes ◽  
Controlled Deposition

A method of ac dielectrophoresis was applied to align and deposit metallic multi-wall carbon nanotubes between pre-fabricated metal (Au, Pd) electrodes with a micron scale separation. For improvement of nanotube contacts with electrodes, Ni and Pd electroless processes were developed, and significant reduction of 2 terminals resistances was demonstrated. Further, using electron and ion beam deposited Pt contacts in two different configurations (“Pt-on-CNT” and “CNT-on-Pt”), 4 terminals measurements have been performed to evaluate intrinsic nanotube resistances. The values between 90 and 130 kΩ/μm were obtained, while systematically lower values (30-70 kΩ/μm) were estimated using 2 terminals method. The 4 terminals method was applied to study the effect of ion irradiation on the electrical parameters of supported nanotubes.

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