Carbon Nanotube-Based Stretchable Hybrid Material Film for Electronic Devices and Applications

2020 ◽  
Vol 20 (7) ◽  
pp. 4549-4556
Author(s):  
Laura Fazi ◽  
Daniele Mirabile Gattia ◽  
Luigi Pavone ◽  
Anna Prioriello ◽  
Valerio Scacco ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Electronic Devices ◽  
Electrical Characterization ◽  
Technological Application ◽  
Single Wall Carbon Nanotubes ◽  
Inert Material ◽  
Wide Range ◽  
Strong Adhesion ◽  
Simple Technology

To meet the increasing demand, for stretchable conductive materials in a wide range of applications, innovative conductors based on single wall carbon nanotubes (SWCNT) self-grafted on different polymer films, are assembled. Aiming at a simple technology for flexible and stretchable electronic devices, and contrary to what commonly reported for carbon nanotubes (CNT), no chemical functionalization of SWCNT is necessary for stable grafting onto several polymeric surfaces. The novelty and functionality of our composite materials stand in the synergy among the intrinsic biocompatibility of CNT, a fully inert material, their electrical conductivity, and the stretchable-viscoelastic properties of the polymer-nanotube bundles composites. Electrical characterization of both unstretched and strongly stretched planar film conductors is provided, demonstrating the use of this new composite material for technological application. Also, an insight into the mechanisms of strong adhesion to the polymer is obtained by scanning electron microscopy (SEM) of the surface composite. As an example of technological application of such stretchable circuitry, the electrical functionality of a carbon nanotube-based six-sensor (electrode) grid is used to record subdural electrocorticograms in freely-moving laboratory rats over approximately three months.

Alignment and Deposition of Single Wall Carbon Nanotubes under the Influence of an Electric Field

2002 ◽  
Vol 761 ◽  
Author(s):  
Paul Jaynes ◽  
Thomas Tiano ◽  
Margaret Roylance ◽  
Charles Carey ◽  
Kenneth McElrath
Keyword(s):  
Carbon Nanotubes ◽  
Electric Field ◽  
Electronic Devices ◽  
Physical And Mechanical Properties ◽  
Single Wall Carbon Nanotubes ◽  
Enabling Technology ◽  
Single Wall Carbon ◽  
Nanoelectronic Devices ◽  
Wide Range ◽  
Field Lines

ABSTRACTSingle wall carbon nanotubes have aroused a great deal of interest because of their unique combination of electrical, physical and mechanical properties. However, the widespread use of SWNTs in composites and electronic devices is limited because of the difficulty of dispersing and processing these materials. This paper describes a method for depositing and aligning SWNTs from a dispersed solution onto a substrate under the influence of an electric field. Results indicate that SWNTs can be aligned in bulk in the direction of electric field lines, and that individual SWNT ropes may be deposited between two electrodes. The extent and type of deposition depends upon the electrode geometry and processing time. Electrical alignment of SWNTs is an enabling technology allowing manipulation of nanomaterials using standard processing. It could eventually lead to a wide range of products, such as nanocomposites with aligned fillers and nanoelectronic devices.

Alignment and Deposition of Single Wall Carbon Nanotubes under the Influence of an Electric Field

2002 ◽  
Vol 741 ◽  
Author(s):  
Paul Jaynes ◽  
Thomas Tiano ◽  
Margaret Roylance ◽  
Charles Carey ◽  
Kenneth McElrath
Keyword(s):  
Carbon Nanotubes ◽  
Electric Field ◽  
Electronic Devices ◽  
Physical And Mechanical Properties ◽  
Single Wall Carbon Nanotubes ◽  
Enabling Technology ◽  
Single Wall Carbon ◽  
Nanoelectronic Devices ◽  
Wide Range ◽  
Field Lines

ABSTRACTSingle wall carbon nanotubes have aroused a great deal of interest because of their unique combination of electrical, physical and mechanical properties. However, the widespread use of SWNTs in composites and electronic devices is limited because of the difficulty of dispersing and processing these materials. This paper describes a method for depositing and aligning SWNTs from a dispersed solution onto a substrate under the influence of an electric field. Results indicate that SWNTs can be aligned in bulk in the direction of electric field lines, and that individual SWNT ropes may be deposited between two electrodes. The extent and type of deposition depends upon the electrode geometry and processing time. Electrical alignment of SWNTs is an enabling technology allowing manipulation of nanomaterials using standard processing. It could eventually lead to a wide range of products, such as nanocomposites with aligned fillers and nanoelectronic devices.

Neutron Spectroscopy of Carbon nano-Materials

2004 ◽  
Vol 840 ◽  
Author(s):  
Alexander I. Kolesnikov ◽  
Chun-K. Loong ◽  
Alexander P. Moravsky ◽  
Raouf O. Loutfy ◽  
Christian J. Burnham
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Inelastic Neutron Scattering ◽  
Inelastic Neutron ◽  
Single Wall Carbon Nanotubes ◽  
Single Wall Carbon ◽  
Carbon Nanohorns ◽  
Wide Range ◽  
Single Wall Carbon Nanohorns ◽  
Double Wall

ABSTRACTVibrational spectra for single wall carbon nanotubes, double wall carbon nanotubes, single wall carbon nanohorns and C60-peapods have been measured with inelastic neutron scattering in a wide range of energy transfer, 5–220 meV. A decrease in intensity around 75–100 meV and the appearance of two peaks around 120–125 meV and 150 meV in the double wall nanotubes and C60-peapods spectra compared to single wall carbon nanotubes and nanohorns were observed. These findings indicate the possibility of strong interaction between the walls of the double wall carbon nanotube, and between C60 molecules and carbon nanotube of the peapod. Alternatively, a possible contamination of the samples by hydrogen (even in microscopic quantities) covalently bonded to the carbon also can account for the observed phenomena.

Preparation of a Functional Enzyme–Carbon Nanotube Complex by the Immobilization of Superoxide Dismutase on Single-Wall Carbon Nanotubes

2018 ◽  
Vol 13 (7-8) ◽  
pp. 349-355 ◽  
Author(s):  
D. K. Shishkova ◽  
Yu. I. Khodyrevskaya ◽  
A. G. Kutikhin ◽  
M. S. Rybakov ◽  
R. A. Mukhamadiyarov ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Superoxide Dismutase ◽  
Carbon Nanotube ◽  
Single Wall Carbon Nanotubes ◽  
Single Wall Carbon

Bundlet Model for Single-Wall Carbon Nanotubes, Nanocones and Nanohorns

2012 ◽  
Vol 2 (1) ◽  
pp. 48-98 ◽  
Author(s):  
Francisco Torrens ◽  
Gloria Castellano
Keyword(s):  
Carbon Nanotubes ◽  
Free Energy ◽  
Distribution Function ◽  
Carbon Nanotube ◽  
Interaction Energy ◽  
Organic Solvents ◽  
Cone Angle ◽  
Single Wall Carbon Nanotubes ◽  
Carbon Nanocones ◽  
Single Wall Carbon

This paper discusses the existence of single-wall carbon nanocones (SWNCs), especially nanohorns (SWNHs), in organic solvents in the form of clusters. A theory is developed based on a bundlet model describing their distribution function by size. Phenomena have a unified explanation in bundlet model in which free energy of an SWNC, involved in a cluster, is combined from two components: a volume one, proportional to number of molecules n in a cluster, and a surface one proportional to n1/2. Bundlet model enables describing distribution function of SWNC clusters by size. From purely geometrical differences, bundlet (SWNCs) and droplet (fullerene) models predict different behaviours. The SWNCs of various disclinations are investigated via energetic–structural analyses. Several SWNC’s terminations are studied, which are different among one another because of type of closing structure and arrangement. The packing efficiencies and interaction-energy parameters of SWNCs/SWNHs are intermediate between fullerene and single-wall carbon nanotube (SWNT) clusters; an in-between behaviour is expected. However, the properties of SWNCs, especially SWNHs, are calculated close to SWNTs. The structural asymmetry in the different SWNCs, entirely characterized by their cone angle, distinguishes the properties of some, such as P2.

Self-Assembly Fabrication of High Performance Carbon Nanotubes Based FETs

2003 ◽  
Vol 772 ◽  
Author(s):  
Emmanuel Valentin ◽  
Stephane Auvray ◽  
Arianna Filoramo ◽  
Aline Ribayrol ◽  
Marcelo Goffman ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Self Assembly ◽  
High Performance ◽  
Field Effect Transistors ◽  
High Yield ◽  
Single Wall Carbon Nanotubes ◽  
Single Wall Carbon ◽  
Assembled Monolayers ◽  
Self Assembled

AbstractWe describe the realization of high quality self-assembled single wall carbon nanotube field effect transistors (CNTFET). A method using self-assembled monolayers (SAMs) is used to obtain high yield selective deposition placement of single wall carbon nanotubes (SWNTs) on predefined regions of a substrate. This is achieved with individual or small bundles of SWNTs and with high densities suitable for fabrication of integrated devices. We show that such positioned SWNTs can be electrically contacted to realize high performance transistors, which very well compare with state-of-the-art CNTFETs. We therefore validate the self-assembly approach to reliably fabricate efficient carbon nanotube based devices.

Electrochemical Tuning of Single-Wall Carbon Nanotube Mat and Investigations on Actuator Mechanism

2004 ◽  
Vol 855 ◽  
Author(s):  
S. Gupta ◽  
M. Hughes ◽  
J. Robertson
Keyword(s):  
Carbon Nanotubes ◽  
Charge Transfer ◽  
Carbon Nanotube ◽  
Bond Length ◽  
Upper Bound ◽  
Single Wall Carbon Nanotubes ◽  
Single Wall Carbon Nanotube ◽  
Single Wall Carbon ◽  
Electrochemical Tuning

ABSTRACTElectrochemical tuning of single-wall carbon nanotubes has been investigated using in situ Raman spectroscopy. We built a linear actuator from single-wall carbon nanotube mat and studied in several alkali metal (Li, Na, and K) and alkaline earth (Ca) halide solutions. The variation of bonding with electrochemical biasing was monitored using in situ Raman. This is since Raman can detect changes in C-C bond length: the radial breathing mode (RBM) at ∼190 cm−1 varies inversely with the nanotube diameter and the G band at ∼1590 cm−1 varies with the axial bond length. In addition, the intensities of both the modes vary significantly in a nonmonotonic manner pointing at the emptying/depleting or filling of the bonding and anti-bonding states - electrochemical charge injection. We discuss the variation of spectroscopic observables (intensity/frequency) of these modes providing valuable information on the charge transfer dynamics on the single-wall carbon nanotubes mat surface. We found the in-plane compressive strain (∼ -0.25%) and the charge transfer per carbon atom (fc ∼ -0.005) as an upper bound for the electrolytes used i.e. CaCl2. These results can be quantitatively understood in terms of the changes in the energy gaps between the one-dimensional van Hove singularities in the electron density of states arising possibly due to the alterations in the overlap integral of π bonds between the p orbitals of the adjacent carbon atoms. Moreover, the extent of variation of the absolute potential of the Fermi level or alternatively modification of band gap is estimated from modeling Raman intensity to be around 0.1 eV as an upper bound for CaCl2.

Carbon Nanotube Based Molecular Electronic Devices

1998 ◽  
Vol 13 (9) ◽  
pp. 2357-2362 ◽  
Author(s):  
Madhu Menon ◽  
Deepak Srivastava
Keyword(s):  
Carbon Nanotubes ◽  
Molecular Dynamics ◽  
Carbon Nanotube ◽  
Electronic Devices ◽  
Tight Binding ◽  
Single Walled Carbon Nanotubes ◽  
Building Blocks ◽  
Local Minima ◽  
Molecular Electronic ◽  
Walled Carbon Nanotubes

Complex three-point junctions of single-walled carbon nanotubes are proposed as building blocks of nanoscale electronic devices. Both T- and Y-junctions, made up of tubes with differing diameters and chiralities, are studied as prototypes. All the proposed complex junctions have been found to be local minima of the total energy on relaxation with a generalized tight-binding molecular dynamics scheme.

scholarly journals Macroscopic Ensembles of Aligned Carbon Nanotubes in Bubble Imprints Studied by Polarized Raman Microscopy

2014 ◽  
Vol 2014 ◽  
pp. 1-7
Author(s):  
Shota Ushiba ◽  
Jordan Hoyt ◽  
Kyoko Masui ◽  
Junichiro Kono ◽  
Satoshi Kawata ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Raman Microscopy ◽  
Single Wall Carbon Nanotubes ◽  
Coffee Ring ◽  
Aligned Carbon Nanotubes ◽  
Wide Range ◽  
Optical Applications ◽  
Polarized Raman ◽  
Short Time ◽  
Opening Up

We study the alignment of single-wall carbon nanotubes (SWCNTs) in bubble imprints through polarized Raman microscopy. A hemispherical bubble containing SWCNTs is pressed against a glass substrate, resulting in an imprint of the bubble membrane with a coffee ring on the substrate. We find that macroscopic ensembles of aligned SWCNTs are obtained in the imprints, in which there are three patterns of orientations: (i) azimuthal alignment on the coffee ring, (ii) radial alignment at the edge of the membrane, and (iii) random orientation at the center of the membrane. We also find that the alignment of SWCNTs in the imprints can be manipulated by spinning bubbles. The orientation of SWCNTs on the coffee ring is directed radially, which is orthogonal to the case of unspun bubbles. This approach enables one to align SWCNTs in large quantities and in a short time, potentially opening up a wide range of CNT-based electronic and optical applications.

Electrical Resistance of Single-Wall Carbon Nanotubes with Determined Chiral Indices

2009 ◽  
Vol 1204 ◽  
Author(s):  
Letian Lin ◽  
Lu-Chang Qin ◽  
Sean Washburn ◽  
Scott Paulson
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Vapor Deposition ◽  
Electrical Resistance ◽  
Room Temperature ◽  
Chemical Vapor ◽  
Single Wall Carbon Nanotubes ◽  
Single Wall Carbon ◽  
Transmission Electron ◽  
Highly Sensitive

AbstractThe properties of a carbon nanotube (CNT), in particular a single-wall carbon nanotube (SWNT), are highly sensitive to the atomic structure of the nanotube described by its chirality (chiral indices). We have grown isolated SWNTs on a silicon substrate using chemical vapor deposition (CVD) and patterned sub-micron probes using electron beam lithography. The SWNT was exposed by etching the underlying substrate for transmission electron microscope (TEM) imaging and diffraction studies. For each individual SWNT, its electrical resistance was measured by the four-probe method at room temperature and the chiral indices of the same SWNT were determined by nano-beam electron diffraction. The contact resistances were reduced by annealing to typically 3-5 kΩ. We have measured the I-V curve and determined the chiral indices of each nanotube individually from four SWNTs selected randomly – two are metallic and two are semiconducting. We will present the electrical resistances in correlation with the carbon nanotube diameter as well as the band gap calculated from the determined chiral indices for the semiconducting carbon nanotubes. These experimental results are also discussed in connection with theoretical estimations.

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