Felipe Cervantes-Sodi

TL;DR: At atomic-scale, video-rate environmental transmission electron microscopy and in situ time-resolved X-ray photoelectron spectroscopy of surface-bound catalytic chemical vapor deposition of single-walled carbon nanotubes and nanofibers observe that transition metal catalyst nanoparticles on SiOx support show crystalline lattice fringe contrast and high deformability before and during nanotube formation.

TL;DR: In this paper, the electronic properties of chemically modified armchair ribbons were investigated by means of density functional theory, and it was shown that edge substitutions at low density do not significantly alter the band gap, while bulk substitution promotes the onset of semiconducting-metal transitions.

TL;DR: A video-rate environmental transmission electron microscopy study of Si nanowire formation from Pd silicide crystals under disilane exposure establishes an atomistic framework for nanowires assembly from solid catalysts, relevant also to their contact formation.

TL;DR: This work studies the restructuring of solid nickel catalyst nanoparticles during carbon nanotube growth by environmental transmission electron microscopy and multiscale modeling and calculates molecular dynamics/continuum transport calculations of surface-diffusion-mediated restructuring in quantitative agreement with the experimentally observed catalyst shape evolutions.

TL;DR: Metal-dioxide & metal-dichalcogenide monolayers are studied by means of Density Functional Theory and the spin orbit interaction is considered by using fully relativistic pseudopotentials (FRUP).