Size Effects in Carbon Nanotubes
نویسندگان
چکیده
منابع مشابه
Temperature and size effects on diffusion in carbon nanotubes.
We study the self-diffusion of simple gases inside single-walled carbon nanotubes at the zero-loading limit by molecular dynamics simulations. The host-framework flexibility influence is taken into account. In particular, we study the influences of nanotube size and temperature. For the carbon-nanotube radius-dependent self-diffusivities, a maximum is observed, which resembles the so-called lev...
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We consider the effects of Coulomb interactions on single-wall carbon nanotubes using an on-site Hubbard interaction, u . For the ~N ,N! armchair tubes the low-energy theory is shown to be identical to a two-chain Hubbard model at half-filling, with an effective interaction uN5u/N . Umklapp scattering leads to gaps in the spectrum of charge and spin excitations which are exponentially small for...
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To elucidate the effect of size on the pulmonary toxicity of single-wall carbon nanotubes (SWCNTs), we prepared two types of dispersed SWCNTs, namely relatively thin bundles with short linear shapes (CNT-1) and thick bundles with long linear shapes (CNT-2), and conducted rat intratracheal instillation tests and in vitro cell-based assays using NR8383 rat alveolar macrophages. Total protein leve...
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S. Bellucci, J. González, and P. Onorato INFN, Laboratori Nazionali di Frascati, P.O. Box 13, 00044 Frascati, Italy Instituto de Estructura de la Materia, Consejo Superior de Investigaciones Cientı́ficas, Serrano 123, 28006 Madrid, Spain Dipartimento di Scienze Fisiche, Università degli Studi di Napoli ‘‘Federico II,’’ Via Cintia, I-80126 Napoli, Italy ~Received 14 May 2003; revised manuscript r...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 1998
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.81.1869