scholarly journals Printed recyclable and self-poled polymer piezoelectric generators through single-walled carbon nanotube templating

2020 ◽  
Vol 13 (3) ◽  
pp. 868-883 ◽  
Author(s):  
Nick A. Shepelin ◽  
Peter C. Sherrell ◽  
Eirini Goudeli ◽  
Emmanuel N. Skountzos ◽  
Vanessa C. Lussini ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
3D Printing ◽  
High Performance ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
Poled Polymer ◽  
Induced Polarisation ◽  
Walled Carbon Nanotubes

High-performance, unpoled and recyclable piezoelectric generators are produced by combining dipole templating via single-walled carbon nanotubes with shear-induced polarisation via 3D printing of fluoropolymers.

scholarly journals High-performance ionic and non-ionic fluoropolymer/ionic liquid gel hybrid actuators based on single-walled carbon nanotubes

RSC Advances ◽  
2017 ◽  
Vol 7 (5) ◽  
pp. 2443-2449 ◽  
Author(s):  
Naohiro Terasawa
Keyword(s):  
Carbon Nanotubes ◽  
Ionic Liquid ◽  
Carbon Nanotube ◽  
High Performance ◽  
Single Walled Carbon Nanotubes ◽  
Electromechanical Properties ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

The electrochemical and electromechanical properties of actuators based on an ionic and non-ionic fluoropolymer gel, and an ionic liquid, fabricated using a single-walled carbon nanotube gel electrode.

Highly efficient thermophones based on freestanding single-walled carbon nanotube films

2019 ◽  
Vol 4 (5) ◽  
pp. 1158-1163 ◽  
Author(s):  
Stepan A. Romanov ◽  
Ali E. Aliev ◽  
Boris V. Fine ◽  
Anton S. Anisimov ◽  
Albert G. Nasibulin
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
State Of The Art ◽  
Single Walled Carbon Nanotubes ◽  
The State ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
Highly Efficient ◽  
Art Performance ◽  
Walled Carbon Nanotubes

We present the state-of-the-art performance of air-coupled thermophones made of thin, freestanding films of randomly oriented single-walled carbon nanotubes (SWCNTs).

Molecular dynamics simulations of single-walled carbon nanotubes and polynylon66

2019 ◽  
Vol 33 (23) ◽  
pp. 1950258 ◽  
Author(s):  
Danhui Zhang ◽  
Houbo Yang ◽  
Zhongkui Liu ◽  
Anmin Liu
Keyword(s):  
Carbon Nanotubes ◽  
Molecular Dynamics ◽  
Carbon Nanotube ◽  
High Performance ◽  
Single Walled Carbon Nanotubes ◽  
Md Simulations ◽  
Interfacial Interaction ◽  
Radius Of Gyration ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

Polynylon66, as a kind of important engineering plastics, is widely used in various fields. In this work, we studied the interfacial interactions between polynylon66 and single-walled carbon nanotubes (SWCNTs) using molecular dynamics (MD) simulations. The results showed that the polynylon66 could interact with the SWCNTs and the mechanism of interfacial interaction between polynylon66 and SWCNTs was also discussed. Furthermore, the morphology of polynylon66 adsorbed to the surface of SWCNTs was investigated by the radius of gyration. Influence factors such as the initial angle between polynylon66 chain and nanotube axis, SWCNT radius and length of polynylon66 on interfacial adhesion of single-walled carbon nanotube-polymer and the radius of gyration of the polymers were studied. These results will help to better understand the interfacial interaction between polymer and carbon nanotube (CNT) and also guide the fabrication of high performance polymer/carbon nanotube nanocomposites.

Photochemical generation of bis-hexahapto chromium interconnects between the graphene surfaces of single-walled carbon nanotubes

2015 ◽  
Vol 2 (1) ◽  
pp. 81-85 ◽  
Author(s):  
Aron Pekker ◽  
Mingguang Chen ◽  
Elena Bekyarova ◽  
Robert C. Haddon
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
Photochemical Generation ◽  
Carbon Nanotube Junctions ◽  
Walled Carbon Nanotubes

The linkage of single-walled carbon nanotube junctions by the photochemistry of organometallic chromium reagents produces dramatic increases in network conductivity.

Single-walled carbon nanotubes as optical probes for bio-sensing and imaging

2017 ◽  
Vol 5 (32) ◽  
pp. 6511-6522 ◽  
Author(s):  
Jing Pan ◽  
Feiran Li ◽  
Jong Hyun Choi
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Biomedical Imaging ◽  
Single Walled Carbon Nanotubes ◽  
Optical Probes ◽  
Biomolecular Sensing ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

A review on the applications of single-walled carbon nanotube photoluminescence in biomolecular sensing and biomedical imaging.

Chemical structures and physical properties of vanadium oxide films modified by single-walled carbon nanotubes

2016 ◽  
Vol 18 (3) ◽  
pp. 1422-1428 ◽  
Author(s):  
Qiong He ◽  
Xiangdong Xu ◽  
Meng Wang ◽  
Minghui Sun ◽  
Yadong Jiang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Physical Properties ◽  
Vanadium Oxide ◽  
Composite Films ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
Chemical Structures ◽  
Walled Carbon Nanotubes

A series of vanadium oxide (VOx)–single-walled carbon nanotube (SWCNT) composite films with different SWCNT concentrations were prepared and systematically investigated. The critical SWCNT concentrations for modification of VOx films were experimentally deduced.

Aligned fluorinated single-walled carbon nanotubes as a transmission channel towards attenuation of broadband electromagnetic waves

2018 ◽  
Vol 6 (35) ◽  
pp. 9399-9409 ◽  
Author(s):  
Yang Liu ◽  
Yichun Zhang ◽  
Cheng Zhang ◽  
Benyuan Huang ◽  
Xu Wang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Electromagnetic Waves ◽  
Single Walled Carbon Nanotubes ◽  
Transmission Channel ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
Strong Electrostatic Interaction ◽  
Walled Carbon Nanotubes ◽  
Carbon Nanotube Networks

Highly fluorinated single-walled carbon nanotubes tend to be oriented under stress due to strong electrostatic interaction allowing directional propagation and then effective attenuation of electromagnetic waves by pristine single-walled carbon nanotube networks.

scholarly journals Chirality effects on an electron transport in single-walled carbon nanotube

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
J. Charoenpakdee ◽  
Ongart Suntijitrungruang ◽  
S. Boonchui
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Charge Transport ◽  
Spin Polarization ◽  
Low Frequency ◽  
Single Walled Carbon Nanotubes ◽  
Negative Wave ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

Abstract In our work, we investigate characteristics of conductivity for single-walled carbon nanotubes caused by spin–orbit interaction. In the case study of chirality indexes, we especially research on the three types of single-walled carbon nanotubes which are the zigzag, the chiral, and the armchair. The mathematical analysis employed for our works is the Green-Kubo Method. For the theoretical results of our work, we discover that the chirality of single-walled carbon nanotubes impacts the interaction leading to the spin polarization of conductivity. We acknowledge such asymmetry characteristics by calculating the longitudinal current–current correlation function difference between a positive and negative wave vector in which there is the typical chiral-dependent. We also find out that the temperature and the frequency of electrons affect the function producing the different characteristics of the conductivity. From particular simulations, we obtain that the correlation decrease when the temperature increase for a low frequency of electrons. For high frequency, the correlation is nonmonotonic temperature dependence. The results of the phenomena investigated from our study express different degrees of spin polarization in each chiral of single-walled carbon nanotube and significant effects on temperature-dependent charge transport according to carrier backscattering. By chiral-induced spin selectivity that produces different spin polarization, our work could be applied for intriguing optimization charge transport.

Radial Waves Propagation in a Single-Walled Carbon Nanotube with Surface Irregularity

2021 ◽  
Vol 16 (1) ◽  
pp. 97-103
Author(s):  
Mahmoud. M. Selim
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Phase Velocity ◽  
Single Walled Carbon Nanotubes ◽  
Surface Irregularity ◽  
Structural Element ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
Knowledge Propagation ◽  
Walled Carbon Nanotubes

This work is an attempt to study the propagation of radial waves in an irregular single-walled carbon nanotube (ISWCNT). The characteristics equation of phase velocity of radial waves is derived using cylindrical thin shell theory. Taking into account the effects of the surface irregularity, dispersion curves are plotted and the effectiveness of surface irregularity is confirmed by comparing the obtained numerical results with those in cases of propagation of radial waves in uniform nanotube. The results turn out that, the phase velocity of radial waves is dependent on the surface irregularity and it is increasing with an increase of surface irregularity parameter. To the author best knowledge, propagation of radial waves in the irregular single-walled carbon nanotubes has not yet been studied, and the present work is an attempt to find out the dispersion relation of radial waves in ISWCNTs. Finally, the present results may serve as useful references for the application and the design of nano oscillators and nanodevices, in which single-walled carbon nanotubes act as the most prevalent nanocomposite structural element.

Determination of fundamental coupled torsional—radial frequency of single-walled carbon nanotubes

2020 ◽  
pp. 107754632098134
Author(s):  
Sneha Singh
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Shear Modulus ◽  
Vibration Frequency ◽  
Single Walled Carbon Nanotubes ◽  
Radial Vibration ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

Research indicates that single-walled carbon nanotubes have a unique coupled torsional–radial vibration as one of their fundamental modes. Determination of their vibration frequency is required for efficient use of single-walled carbon nanotube in nano-electromechanical systems. However, there is no mathematical expression for these frequencies and their dependence on single-walled carbon nanotube geometry is unknown. This article examines the effect of diameter, length, and chirality on the fundamental coupled torsional–radial vibration frequency of single-walled carbon nanotube using molecular–structural–mechanics–approach, finite element analysis, and regression analyses. Consequently, a first-ever mathematical form of this frequency is derived. The form quickly and accurately predicts these frequencies at 1.5% in-sample, and 7.2% out-sample mean absolute percentage error. single-walled carbon nanotubes’ fundamental coupled torsional–radial vibration frequency is found independent of diameter and inversely proportional to length where the proportionality constant depends on chirality. The coupling of modes and the similarity of the frequency form with cylindrical shell suggest that single-walled carbon nanotube behave like thin shells in these vibrations. A form for effective circumferential shear modulus of single-walled carbon nanotube is also derived. This modulus is found to depend only on the chirality where achiral single-walled carbon nanotubes have higher values than chiral single-walled carbon nanotubes. Proposed mathematical forms can be used for characterization of single-walled carbon nanotubes, determination of single-walled carbon nanotubes’ effective shear modulus, and tuning operational frequency of single-walled carbon nanotube-based nano-electromechanical systems.

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