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Density functional methods have been used to calculate the electronic properties of aligned smalldiameter single-walled carbon nanotubes under hydrostatic pressures. Abrupt pressure induced semiconductor-metal and metal-semiconductor…

Materials Science · Physics 2008-08-27 Sumit Saxena , Trevor A. Tyson

Carboxylic functionalization (-COOH groups) of carbon nanotubes is known to improve their dispersion properties and increase the electrical conductivity of carbon-nanotube - polymer nanocomposites. We have studied experimentally the effects…

The importance of finite-size effects for the electronic structure of long zigzag and armchair carbon nanotubes is studied. We analyze the electronic structure of capped (6,6), (8,0), and (9,0) single walled carbon nanotubes as a function…

Chemical Physics · Physics 2007-05-23 Oded Hod , Juan E. Peralta , Gustavo E. Scuseria

In cell membranes, proteins and lipids are organized into sub-micrometric nanodomains of varying size, shape and composition, performing specific functions. Despite their biological importance, the detailed morphology of these nanodomains…

The work here has demonstrated the use a simple microwave plasma process for welding carbon nanotubes onto solid surfaces such as plastics and glasses, it was found that due to the lower softening point and viscosity of polystyrene…

Materials Science · Physics 2015-12-02 Pejman Talemi , George Simon

In order to develop a new method for sound insulation materials reinforcement, in this study, the effect of carbon nanotubes on polycarbonate plates as a sample of materials used in acoustic insulators, have been investigated via numerical…

Computational Physics · Physics 2025-06-12 Parinus Vedadi , Edris Faizabadi

Electronic many-body correlation effects in one-dimensional (1D) systems such as carbon nanotubes have been predicted to modify strongly the nature of photoexcited states. Here we directly probe this effect using broadband elastic light…

The electronic structure of a graphene sheet is altered when it is rolled up to form a single-walled carbon nanotube (SWCNT), and the curvature effects for small radius nanotubes become significant. In the paper, an analogue of the Bloch…

Mathematical Physics · Physics 2025-12-08 Yuri A. Antipov

Low energy excitations in carbon nanotubes can be described by an effective field theory of two components spinor. It is pointed out that the chiral anomaly in 1+1 dimensions should be observed in a metallic toroidal carbon nanotube on a…

Mesoscale and Nanoscale Physics · Physics 2008-12-18 K. Sasaki

Aggregation of carbon nanotubes dispersed in nematic liquid crystalline medium is discussed. A model is proposed, which assumes that the aggregates consist of a "skeleton" formed by stochastically arranged nanotubes and a "shell" ("coat")…

Mesoscale and Nanoscale Physics · Physics 2011-01-06 Longin N. Lisetski , Nikolai I. Lebovka , Sergei V. Naydenov , Marat S. Soskin

Optical nanoantennas can efficiently confine light into nanoscopic hotspots, enabling single-molecule detection sensitivity at biological relevant conditions. This innovative approach to breach the diffraction limit offers a versatile…

We systematically investigate the relationships between structural and electronic effects of finite size zigzag or armchair carbon nanotubes of various diameters and lengths, starting from a molecular template of varying shape and diameter,…

Geopolymer has been considered as a green and low-carbon material with great potential application due to its simple synthesis process, environmental protection, excellent mechanical properties, good chemical resistance and durability. In…

Soft Condensed Matter · Physics 2024-02-16 Wenkai Liu , Ling Qin , C. Y. Zhao , Shenghong Ju

Directional detection of Dark Matter (DM) particles could be accomplished by studying either ion or electron recoils in large arrays of parallel carbon nanotubes. For instance, a MeV mass DM particle could scatter off a lattice electron,…

Instrumentation and Detectors · Physics 2020-05-20 G Cavoto , M G Betti , C Mariani , F Pandolfi , A D Polosa , I Rago , A Ruocco

The interactions of charged particles with carbon nanotubes may excite electromagnetic modes in the electron gas produced in the cylindrical graphene shell constituting the nanotube wall. This wake effect has recently been proposed as a…

Accelerator Physics · Physics 2023-12-18 P. Martín-Luna , A. Bonatto , C. Bontoiu , G. Xia , J. Resta-López

We investigate the effect of cylindrical nano-confinement on the phase behaviour of a rigid model of carbon dioxide using both molecular dynamics and well tempered metadynamics. To this aim we study a simplified pore model across a…

Materials Science · Physics 2017-09-15 Ilaria Gimondi , Matteo Salvalaglio

We present the molecular dynamics study of benzene molecules confined into the single wall carbon nanotube. The local structure and orientational ordering of benzene molecules are investigated. It is found that the molecules mostly group in…

Mesoscale and Nanoscale Physics · Physics 2014-11-14 Yu. D. Fomin , E. N. Tsiok , V. N. Ryzhov

Nitrogen doped single wall carbon nanotubes have many functional benefits. Doping opens the possibility to control the electronic energy levels, surface energy, surface reactivity and charge carrier density. The additional electron in the…

Materials Science · Physics 2021-02-01 Filippo Fedi , Oleg Domanov , Paola Ayala , Thomas Pichler

The confinement of liquid crystals inside curved geometries leads to exotic structures, with applications ranging from bio-sensors to optical switches and privacy windows. Here we study how curvature affects the alignment of a cholesteric…

Soft Condensed Matter · Physics 2016-08-05 Ana Fialho , Nelson R. Bernardino , Nuno M. Silvestre , Margarida M. Telo da Gama

We calculate the change in the correlation gap of armchair carbon nanotubes with uniaxial elastic strain. We predict that such a stretching will enlarge the correlation gap for all carbon nanotubes by a change that could be as large as…

Strongly Correlated Electrons · Physics 2007-05-23 T. A. Gloor , F. Mila