Fabrication of nanoelectrodes based on controlled placement of carbon nanotubes using alternating-current electric field

Chen, Zhi; Hu, Wenchong; Guo, Jun; Saito, Kozo

doi:10.1116/1.1689307

Cited by 34 publications

(29 citation statements)

References 19 publications

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“…With great advancement in the size control of the nanowire and the advanced technology to controllably transfer the nanowires into specific locations, such technique offer a convenient way for nanogap electrode fabrication and various nanowires were demonstrated for nanogap electrode fabrication. With exceptional mechanical stiffness and chemical stability, carbon nanotubes (CNTs) are very resistant to processing and were used as masks for nanogap fabrication by several groups . Compared to being used as a contact masks, using suspended CNTs as shadow masks shows their superiority because thicker metal electrodes and cleaner gaps can be realized.…”

Section: Fabrication Of Gated Nanogap Electrodesmentioning

confidence: 99%

“…By thermal deposition of metal with the suspended carbon nanotubes and photoresist pattern both as masks, nanogap electrodes were produced after the removal of the masks (Figure a‐2). Beside resist, metals can also be used as both masks and supporting structures of the suspended CNTs for nanogap manufacturing . In addition to nanowires, suspended edges can also be used for nanogap electrode production termed as “edge lithography” .…”

Section: Fabrication Of Gated Nanogap Electrodesmentioning

confidence: 99%

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Nanogap Electrodes towards Solid State Single‐Molecule Transistors

Cui

Dong

2015

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With the establishment of complementary metal-oxide-semiconductor (CMOS)-based integrated circuit technology, it has become more difficult to follow Moore's law to further downscale the size of electronic components. Devices based on various nanostructures were constructed to continue the trend in the minimization of electronics, and molecular devices are among the most promising candidates. Compared with other candidates, molecular devices show unique superiorities, and intensive studies on molecular devices have been carried out both experimentally and theoretically at the present time. Compared to two-terminal molecular devices, three-terminal devices, namely single-molecule transistors, show unique advantages both in fundamental research and application and are considered to be an essential part of integrated circuits based on molecular devices. However, it is very difficult to construct them using the traditional microfabrication techniques directly, thus new fabrication strategies are developed. This review aims to provide an exclusive way of manufacturing solid state gated nanogap electrodes, the foundation of constructing transistors of single or a few molecules. Such single-molecule transistors have the potential to be used to build integrated circuits.

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Section: Fabrication Of Gated Nanogap Electrodesmentioning

confidence: 99%

Section: Fabrication Of Gated Nanogap Electrodesmentioning

confidence: 99%

Nanogap Electrodes towards Solid State Single‐Molecule Transistors

Cui

Dong

2015

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“…The diameter and spatial placement of the CNTs are two key factors that contribute to a successful CNT shadow mask fabrication. The CNTs can be randomly dispersed by ultrasonication, [123,124] elaborately manipulated by electric field alignment, [125][126][127] or positioned by direct mechanical transfer techniques. [128,129] After metal deposition and a successive lift-off process, nanogaps consistent with diameters of the CNTs can be readily obtained.…”

Section: Molecular Ruler and Nanostructure Template For Nanogap Electmentioning

confidence: 99%

Nanogap Electrodes

2009

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Nanogap electrodes (namely, a pair of electrodes with a nanometer gap) are fundamental building blocks for the fabrication of nanometer‐sized devices and circuits. They are also important tools for the examination of material properties at the nanometer scale, even at the molecular scale. In this review, the techniques for the fabrication of nanogap electrodes, the preparation of assembled devices based on the nanogap electrodes, and the potential application of these nanodevices for analysis of material properties are introduced. The history, the research status, and the prospects of nanogap electrodes are also discussed.

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“…In another direction, CNTs, being highly electrically conductive, have gained great research interests in recent years for connecting two conducting electrodes at the nanoscale-where the CNTs can be integrated into a micro-or nanoelectronic system. [14][15][16][17][18][19] Therefore, finding ways to bridge two electrical conductors by assembling CNTs is an active area of research. 20,21 The nematic phase of an LC shows dielectric anisotropy De(¼e jj À e ?…”

Section: Introductionmentioning

confidence: 99%

Insulator-to-conductor transition in liquid crystal-carbon nanotube nanocomposites

Basu

Garvey

2016

Journal of Applied Physics

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A small quantity of carbon nanotubes (CNTs) was dispersed in a liquid crystal (LC) and the LC þ CNT hybrid in the isotropic phase was found to exhibit an insulator-to-conductor transition when an external electric field was applied. This effect was probed by measuring the resistance of the system as a function of applied voltage across the LC cell. In an LC þ CNT hybrid, the LC molecules self-assemble themselves at the CNT surface due to p-p electron stacking, creating pseudonematic domains (PNDs) surrounding the CNTs. These CNT-embedded PNDs interact with the external electric field even in the isotropic phase of the LC. When the external field is applied, the PND-encapsulated CNTs start to rotate along the field and form wires due to their natural tendency of entanglement. The CNT-wires eventually short the two electrodes of the LC cell, manifesting an insulator-to-conductor transition in the LC þ CNT hybrid. Additional studies revealed that the cell spacing and the CNT-concentration had a significant impact on the threshold voltage across the LC cell for the insulator-to-conductor transition process. [

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Fabrication of nanoelectrodes based on controlled placement of carbon nanotubes using alternating-current electric field

Abstract: Articles you may be interested inNanowelding of carbon nanotube-metal contacts: An effective way to control the Schottky barrier and performance of carbon nanotube based field effect transistors

Cited by 34 publications

References 19 publications

Nanogap Electrodes towards Solid State Single‐Molecule Transistors

Nanogap Electrodes towards Solid State Single‐Molecule Transistors

Nanogap Electrodes

Insulator-to-conductor transition in liquid crystal-carbon nanotube nanocomposites

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