English
Related papers

Related papers: Diameter selective characterization of single-wall…

200 papers

An oxygen assisted hydrocarbon chemical vapor deposition (CVD) method is developed to afford large-scale highly reproducible ultra high-yield growth of vertical single-walled carbon nanotubes (SWNT). It is revealed that reactive hydrogen…

The origin of the chirality of single-walled carbon nanotubes (SWCNTs) has been a long-standing dispute. Molecular dynamics (MD) simulations driven by machine-learning force fields (MLFF), which can study the interface dynamics under near…

Mesoscale and Nanoscale Physics · Physics 2025-03-06 Sida Sun , Shigeo Maruyama , Yan Li

We study the effect of doping in the suppression of tunneling observed in multi-walled nanotubes, incorporating as well the influence of the finite dimensions of the system. A scaling approach allows us to encompass the different values of…

Strongly Correlated Electrons · Physics 2009-11-10 S. Bellucci , J. Gonzalez , P. Onorato

The complete energy expression of a deformed single-walled carbon nanotube (SWNT) is derived in the continuum limit from the local density approximation model proposed by Lenosky {\it et al.} \lbrack Nature (London) {\bf 355}, 333…

Materials Science · Physics 2007-05-23 Zhan-chun Tu , Zhong-can Ou-Yang

The electronic and structural properties of zigzag and armchair single-wall carbon nanotubes (SWCNT) with a single vacancy or two vacancies located at various distances have been obtained within the frame of the Density Function Theory…

Atomic and Molecular Clusters · Physics 2008-07-15 A. Proykova , H. Iliev , Feng Yin Li

A scheme of nanoscale lasers based on the so-called carbon peapods is examined in details. Since there is considerable cylindrical empty space in the middle of a single-wall carbon nanotube (SWCNT), it can serve as a laser resonant cavity…

Materials Science · Physics 2007-05-23 S. He , J. Q. Shen , Haiyang Li , Hongnian Li

We present a detailed comparison between theoretical predictions on electron scattering processes in metallic single-walled carbon nanotubes with defects and experimental data obtained by scanning tunneling spectroscopy of Ar$^+$ irradiated…

Mesoscale and Nanoscale Physics · Physics 2011-04-28 D. Bercioux , G. Buchs , H. Grabert , O. Groening

Annotation A carbon nanotubes (CNT) filled polymer nanocomposites with their unique physical, mechanical and electro-optical properties has repeatedly discussed in the literature. The main part of this problem is to obtain high quality…

Mesoscale and Nanoscale Physics · Physics 2011-12-12 T. V. Vlasova , V. I. Kryshtob , V. F. Mironov , L. A. Apresyan , S. N. Bokova , E. D. Obraztsova , D. V. Vlasov

Optimized growth of Single Wall Carbon Nanotubes requires a full knowledge of the actual state of the catalyst nanoparticle and its interface with the tube. Using Tight Binding based atomistic computer simulations, we calculate carbon…

Materials Science · Physics 2015-06-05 Mamadou Diarra , Alexandre Zappelli , Hakim Amara , François Ducastelle , Christophe Bichara

Extensive molecular dynamics simulations of water permeation and ion selectivity of the single-walled carbon nanotubes with the radial deformation are presented . The simulated results indicate that there is a close relationship between the…

Mesoscale and Nanoscale Physics · Physics 2012-03-01 Xu Kui , Wang Qing-Song , Tan Bin , Chen Ming-Xuan , Miao Ling , Jiang Jian-Jun

We describe a technique for fabricating nanometer-scale gaps in Pt wires on insulating substrates, using individual single-walled carbon nanotubes as shadow masks during metal deposition. More than 80% of the devices display current-voltage…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 E. P. De Poortere , L. M. Huang , M. Huang , S. J. Wind , S. O'Brien , J. Hone , H. L. Stormer

Carbon nanotubes are a good realization of one-dimensional crystals where basic science and potential nanodevice applications merge. Defects are known to modify the electrical resistance of carbon nanotubes. They can be present in as-grown…

Materials Science · Physics 2007-05-23 C. Gomez-Navarro , P. J. De Pablo , J. Gomez-Herrero , B. Biel , F. J. Garcia-Vidal , A. Rubio , F. Flores

The phosphorus-doped single wall carbon nanotube (PSWCNT) is studied by using First-Principle methods based on Density Function Theory (DFT). The formation energy, total energy, band structure, geometry structure and density of states are…

Mesoscale and Nanoscale Physics · Physics 2011-08-10 AQing Chen , QingYi Shao , ZhiCheng Lin

We have performed low-temperature STM measurements on single-wall carbon nanotubes that are freely suspended over a trench. The nanotubes were grown by CVD on a Pt substrate with predefined trenches etched into it. Atomic resolution was…

Mesoscale and Nanoscale Physics · Physics 2016-08-31 B. J. LeRoy , S. G. Lemay , J. Kong , C. Dekker

Structural and thermal characteristics of crystalline ropes of single-wall carbon nanotubes (SWCNTs) are investigated. Novel crystalline ropes of polygonized SWCNTs produced by laser irradiation exhibit rounded-hexagonal cross sections in…

Materials Science · Physics 2015-10-28 M. J. Lopez , A. Rubio , J. A. Alonsos

Electron field emission characteristics of individual multiwalled carbon nanotubes have been investigated by a piezoelectric nanomanipulation system operating inside a scanning electron microscopy chamber. The experimental setup ensures a…

Materials Science · Physics 2011-02-10 M. Passacantando , F. Bussolotti , S. Santucci , A. Di Bartolomeo , F. Giubileo , L. Iemmo , A. M. Cucolo

We investigate the mechanical and adsorption properties of single-walled carbon nanotubes (SWCNTs) filled with greenhouse gases through Grand Canonical Monte Carlo (GCMC) and Molecular Dynamics (MD) simulations using a recently developed…

The circular dichroism (CD) spectra of single-wall carbon nanotubes are calculated using a dipole approximation. The calculated CD spectra show features that allow us to distinguish between nanotubes with different angles of chirality, and…

Materials Science · Physics 2007-05-23 A. Sanchez-Castillo , C. E. Roman-Velazquez , C. Noguez

A 1 $\mu$m long, field emitting, (5,5) single-walled, carbon nanotube (SWCNT) closed with a fullerene cap, and a similar open nanotube with hydrogen-atom termination, have been simulated using the MNDO (Modified Neglect of Diatomic Overlap)…

In this work we investigated the encapsulation of C$_20$ and C$_30$ fullerenes into semiconducting carbon nanotubes to study the possibility of bandgap engineering in such systems. Classical molecular dynamics simulations coupled to…

Mesoscale and Nanoscale Physics · Physics 2016-08-16 K. S. Troche , V. R. Coluci , R. Rurali , D. S. Galvão
‹ Prev 1 3 4 5 6 7 10 Next ›