Boron Nitride Nanotubes
Mostrando 1-4 de 4 artigos, teses e dissertações.
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1. Analysis of electronic structure of boron nitride nanotubes with different positions of intrinsic impurities
The pristine boron nitride nanotubes have a large direct band gap around 5 eV. This band gap can be engineered by doping. We investigate electronic structure of the doped hexagonal boron nitride (5,5) nanotubes using the linearized augmented cylindrical wave method. In particular, this work focuses on systematical study of the band gap and the density of sta
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2014-12
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2. Nanoosciladores atomísticos de nanotubos de Carbono e de Nitreto de Boro / Atomistic nanooscillators of Carbon nanotubes and Boron Nitride
The Nanotechnology quickly advances to the development of new nanodevices. One of most important in the electronics is clocks that they synchronize the functioning of diverse devices in a determined circuit. In this work we study the development of nanooscillators based upon Carbon nanotubes and Boron-Nitride nanotubes. The atom that oscillates in the interi
Publicado em: 2007
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3. Study of First Principles of Bundles of Nanotubes of Boron Nitride, under Pressure Hydrostatic / Estudo de Primeiros Princípios de Bundles de Nanotubos de Nitreto de Boro sob Pressão Hidrostática
In this work were studied the electronic, vibrations and structural properties of boron nitride nanotube bundles (16,0), (12,0) and (8,0), when submitted to the hydrostatic pressure changes. To study such properties, we used the ab initio method employing density functional theory in the approach of the generalized gradient approximation. All the simulations
Publicado em: 2007
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4. Two-dimensional atomic crystals
We report free-standing atomic crystals that are strictly 2D and can be viewed as individual atomic planes pulled out of bulk crystals or as unrolled single-wall nanotubes. By using micromechanical cleavage, we have prepared and studied a variety of 2D crystals including single layers of boron nitride, graphite, several dichalcogenides, and complex oxides. T
National Academy of Sciences.