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In this work, we report a theoretical coupled study of the structural and phonons properties of bundled single- and double-walled carbon nanotubes (DWNTs), under hydrostatic compression. Our results confirm drastic changes in volume of…

Mesoscale and Nanoscale Physics · Physics 2012-06-21 Acrisio. L. Aguiar , Rodrigo B. Capaz , A. G. Souza Filho , Alfonso San-Miguel

The dependence of the interwall conductance on distance between walls and relative positions of walls are calculated at the low voltage by Bardeen method for (n,n)@(2n,2n) double-walled carbon nanotubes (DWCNTs) with n = 5, 6, ..., 10. The…

Mesoscale and Nanoscale Physics · Physics 2010-04-26 N. A. Poklonski , Nguyen Ngoc Hieu , E. F. Kislyakov , S. A. Vyrko , A. I. Siahlo , A. M. Popov , Yu. E. Lozovik

The hybrid orbitals of single-wall carbon nanotubes are given according to the structure of the nanotube. Because the energy levels of these hybrid orbitals are close to each other, the sigma-orbitals will affect the behavior of the…

Strongly Correlated Electrons · Physics 2008-05-01 G. -P. Tong , Q. -P. Huang

We report a detailed analysis of the optical properties of single wall carbon nanotubes with different mean diameters as produced by laser ablation. From a combined study of optical absorption, high resolution electron energy-loss…

Materials Science · Physics 2009-11-07 X. Liu , T. Pichler , M. Knupfer , M. S. Golden , J. Fink , H. Kataura , Y. Achiba

Because of their natural one-dimensional (1D) structure combined with intricate chiral variations, carbon nanotubes (CNTs) exhibit various exceptional physical properties, such as ultrahigh electrical and thermal conductivity, exceptional…

Single-walled carbon nanotubes exist in a variety of different geometries, so-called chiralities, that define their electronic properties. Chiral selectivity has been reported in catalytic chemical vapor deposition synthesis experiments,…

Mesoscale and Nanoscale Physics · Physics 2024-06-12 Georg Daniel Förster , Thomas D. Swinburne , Hua Jiang , Esko Kauppinen , Christophe Bichara

Macroscopic fibers of carbon nanotubes (CNT) have emerged as an ideal architecture to exploit the exceptional properties of CNT building blocks in applications ranging from energy storage to reinforcement in structural composites.…

We have measured the dynamic alignment properties of single-walled carbon nanotube (SWNT) suspensions in pulsed high magnetic fields through linear dichroism spectroscopy. Millisecond-duration pulsed high magnetic fields up to 56 T as well…

Mesoscale and Nanoscale Physics · Physics 2009-09-29 J. Shaver , A. N. G. Parra-Vasquez , S. Hansel , O. Portugall , C. H. Mielke , M. von Ortenberg , R. H. Hauge , M. Pasquali , J. Kono

We report a comparative ab-initio study of different types of adsorbates and their adsorption mechanism on the field-emission performance of single-walled carbon nanotubes by analyzing electrical properties and transport characteristics and…

Materials Science · Physics 2019-02-15 Ehsanur Rahman , Alireza Nojeh

Carbon nanotube (CNT) fiber is formed by assembling millions of individual tubes. The assembly feature provides the fiber with rich interface structures and thus various ways of energy dissipation, as reflected by the non-zero loss tangent…

Materials Science · Physics 2015-11-18 Jingna Zhao , Xiaohua Zhang , Zhijuan Pan , Qingwen Li

Controlling the bandgap of carbon nanostructures is key to the development and mainstream application of carbon-based nanoelectronic devices. We report density functional theory calculations of the effect of silicon impurities on the…

Materials Science · Physics 2010-01-04 Branden B. Kappes , Cristian V. Ciobanu

We report on the configurations and electronic properties of graphyne and graphdiyne nanoribbons with armchair and zigzag edges investigated with first principles calculations. Our results show that all the nanoribbons are semiconductors…

Mesoscale and Nanoscale Physics · Physics 2013-10-25 Lida Pan , Lizhi Zhang , Boqun Song , Shixuan Du , Hongjun Gao

In this work we are interested to studying the Kondo effect present in a system with a $T$-shape ligation between a single-wall carbon nanotube (SWNT) and a magnetic impurity. The system has been studied under hydrostatic pressure and it…

Strongly Correlated Electrons · Physics 2019-12-16 T. Lobo , Minos A. Neto , Marcio G. da Silva , Octavio D. R. Salmon

We study quantum optical properties of the single-walled carbon nanotube (SWCNT) by introducing the effective interaction between the quantized electromagnetic field and the confined electrons in the SWCNT. Our purpose is to explore the…

Mesoscale and Nanoscale Physics · Physics 2009-04-30 Z. L. Guo , Z. R. Gong , C. P. Sun

Recent experiments about the low temperature behaviour of a Single Wall Carbon Nanotube (SWCNT) showed typical Coulomb Blockade (CB) peaks in the zero bias conductance and allowed us to investigate the energy levels of interacting…

Strongly Correlated Electrons · Physics 2009-11-11 S. Bellucci , P. Onorato

We investigate the nitrogen substitutional impurity in semiconducting zigzag and metallic armchair single-wall carbon nanotubes using ab initio density functional theory. At low concentrations (less than 1 atomic %), the defect state in a…

Materials Science · Physics 2007-05-23 Andriy H. Nevidomskyy , Gábor Csányi , Michael C. Payne

The energetic stability and electronic properties of hydrogenated silicon carbide nanowires (SiCNWs) with zinc blende (3C) and wurtzite (2H) structures are investigated using first-principles calculations within density functional theory…

Materials Science · Physics 2015-09-02 Zhenhai Wang , Mingwen Zhao , Tao He , Hongyu Zhang , Xuejuan Zhang , Zexiao Xi , Shishen Yan , Xiangdong Liu , Yueyuan Xia

Near-infrared electroluminescence from carbon-based emitters, especially in the second biological window (NIR-II) or at telecommunication wavelengths, is difficult to achieve. Single-walled carbon nanotubes (SWCNTs) have been proposed as a…

Applied Physics · Physics 2023-11-01 Nicolas F. Zorn , Simon Settele , Finn L. Sebastian , Sebastian Lindenthal , Jana Zaumseil

We found a giant Seebeck effect in semiconducting single-wall carbon nanotube (SWCNT) films, which exhibited a performance comparable to that of commercial Bi2Te3 alloys. Carrier doping of semiconducting SWCNT films further improved the…

Mesoscale and Nanoscale Physics · Physics 2014-01-30 Yusuke Nakai , Kazuya Honda , Kazuhiro Yanagi , Hiromichi Kataura , Teppei Kato , Takahiro Yamamoto , Yutaka Maniwa

We investigate the properties of conduction electrons in single-walled armchair carbon nanotubes (SWNT) in the presence of both transverse electric and magnetic fields. We find that these fields provide a controlled means of tuning…

Mesoscale and Nanoscale Physics · Physics 2013-05-29 Wade DeGottardi , Tzu-Chieh Wei , Smitha Vishveshwara
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