Structural properties of the multiwall carbon nanotubes/poly(methyl methacrylate) nanocomposites: Effect of the multiwall carbon nanotubes covalent functionalization

investigation of the electronic properties of carbon and iii-v nanotubes

boron nitride semiconducting zigzag swcnt, $b_{cb}$$n_{cn}$$c_{1-cb-cn}$, as a potential candidate for making nanoelectronic devices was examined. in contrast to the previous dft calculations, wherein just one boron and nitrogen doping configuration have been considered, here for the average over all possible configurations, density of states (dos) was calculated in terms of boron and nitrogen ...

Modeling Electronic Properties of Multiwall Carbon Nanotubes

Reviewing experimental results and based on the physical reasoning, we present a basic circuit model for Multiwall carbon nanotubes (MWCNTs), which can simulate different experimental results. Investigation of different results confirms the severe effects of fabrication process (nanotube and contacts) on electronic properties of the MWCNTs. The circuit model has been developed to show the perfo...

Electrical Properties of Connected Multiwall Carbon Nanotubes

Electromechanical Properties of Multiwall Carbon Nanotubes

We examine electrical and coupled electromechanical properties of multiwall carbon nanotubes using transport measurements performed in-situ inside a high resolution transmission electron microscope (TEM). In one experiment, large electrical currents are passed through the nanotubes and the failure modes for nanotube "burnout" examined . In a second set of experiments, the electrical resistance ...

Electronic and structural properties of multiwall carbon nanotubes

We calculate the potential energy surface, the low-frequency vibrational modes, and the electronic structure of a ~5,5!@~10,10! double-wall carbon nanotube. We find that the weak interwall interaction and changing symmetry cause four pseudogaps to open and close periodically near the Fermi level during the soft librational motion at n&30 cm. This electron-libration coupling, absent in solids co...