Possible electric-field-induced one-dimensional excitonic insulators in pairs of carbon nanotubes

2008 ◽  
Vol 78 (11) ◽  
Author(s):  
Jay D. Sau ◽  
Marvin L. Cohen
Keyword(s):  
Carbon Nanotubes ◽  
Electric Field ◽  
One Dimensional

Synergistic effect of carbon nanotubes and graphitic carbon nitride on the enhanced supercapacitor performance of cobalt diselenide-based composites

2021 ◽  
Author(s):  
Mingjie Li ◽  
Xuan Zheng ◽  
Xiang Li ◽  
Youjun Yu ◽  
Jinlong Jiang
Keyword(s):  
Carbon Nanotubes ◽  
Transition Metal ◽  
Synergistic Effect ◽  
Hydrothermal Method ◽  
High Performance ◽  
Carbon Nitride ◽  
Electrode Materials ◽  
One Dimensional ◽  
Supercapacitor Performance ◽  
Metal Selenides

Recently, transition metal selenides have been investigated extensively as promising electrode materials for high-performance supercapacitors. Herein, the multi-component CoSe2/CNTs@g-C3N4 composites are prepared using a two-step hydrothermal method by incorporating one-dimensional...

scholarly journals Gate-tunable plasmons in mixed-dimensional van der Waals heterostructures

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Sheng Wang ◽  
SeokJae Yoo ◽  
Sihan Zhao ◽  
Wenyu Zhao ◽  
Salman Kahn ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carrier Density ◽  
Electromagnetic Interaction ◽  
Luttinger Liquid ◽  
Fundamental Physics ◽  
Metallic Structures ◽  
One Dimensional ◽  
Figures Of Merit ◽  
Electrostatic Gating ◽  
Plasmon Dispersion

AbstractSurface plasmons, collective electromagnetic excitations coupled to conduction electron oscillations, enable the manipulation of light–matter interactions at the nanoscale. Plasmon dispersion of metallic structures depends sensitively on their dimensionality and has been intensively studied for fundamental physics as well as applied technologies. Here, we report possible evidence for gate-tunable hybrid plasmons from the dimensionally mixed coupling between one-dimensional (1D) carbon nanotubes and two-dimensional (2D) graphene. In contrast to the carrier density-independent 1D Luttinger liquid plasmons in bare metallic carbon nanotubes, plasmon wavelengths in the 1D-2D heterostructure are modulated by 75% via electrostatic gating while retaining the high figures of merit of 1D plasmons. We propose a theoretical model to describe the electromagnetic interaction between plasmons in nanotubes and graphene, suggesting plasmon hybridization as a possible origin for the observed large plasmon modulation. The mixed-dimensional plasmonic heterostructures may enable diverse designs of tunable plasmonic nanodevices.

Control of one-dimensional transport in multi-wall carbon nanotubes by wall destruction

2003 ◽  
Vol 34 (3-6) ◽  
pp. 371-375
Author(s):  
T Sasaki ◽  
K Miyamoto ◽  
N Oguri ◽  
K Ishibashi ◽  
N Aoki ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
One Dimensional ◽  
Multi Wall Carbon Nanotubes

scholarly journals OPTICAL CONDUCTIVITY OF ONE-DIMENSIONAL NARROW-GAP SEMICONDUCTORS

2002 ◽  
Vol 16 (10) ◽  
pp. 1499-1509
Author(s):  
HYUN C. LEE
Keyword(s):  
Carbon Nanotubes ◽  
Optical Conductivity ◽  
Group Analysis ◽  
Thermal Fluctuations ◽  
Energy Scale ◽  
Narrow Gap ◽  
Crossover Temperature ◽  
Renormalization Group Analysis ◽  
One Dimensional ◽  
Narrow Gap Semiconductors

The optical conductivities of two one-dimensional narrow-gap semiconductors, anticrossing quantum Hall edge states and carbon nanotubes, are studied using bosonization method. A lowest order renormalization group analysis indicates that the bare band gap can be treated perturbatively at high frequency/temperature. At very low energy scale the optical conductivity is dominated by the excitonic contribution, while at temperature higher than a crossover temperature the excitonic features are eliminated by thermal fluctuations. In case of carbon nanotubes the crossover temperature scale is estimated to be 300 K.

Mesoporous carbon nanotubes for use as support in catalysis and as nanosized reactors for one-dimensional inorganic material synthesis

2003 ◽  
Vol 254 (2) ◽  
pp. 345-363 ◽  
Author(s):  
Jean-Mario Nhut ◽  
Laurie Pesant ◽  
Jean-Philippe Tessonnier ◽  
Gauthier Winé ◽  
Jean Guille ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Mesoporous Carbon ◽  
Inorganic Material ◽  
Material Synthesis ◽  
One Dimensional
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