Electrical transport in carbon nanotube coatings of silica fibers

Abstract

The implementation of engineered surfaces with micrometer‐sized patterns of cell adhesive ligands against a biologically inert background has led to numerous discoveries in fundamental cell biology. , Jennifer L. West and co‐workers present a laser‐based patterning strategy for the fabrication of surfaces displaying multiple patterned ligands, where each ligand is confined to its own array. Cells cultured on surfaces with two ligands display concurrent adhesion to both ligands simultaneously and utilize both ligands for lamella formation during migration.

Contorted Octabenzocircumbiphenyl Sorts Semiconducting Single-Walled Carbon Nanotubes with Structural Specificity

“…Both T 0 and T 1 are functions of the potential barrier height for charge transport . The literature values of T 0 , for instance, vary over a broad range from 13 K at the low end for SWNT/silica fiber composites to 520 K for single-stranded DNA-wrapped carbon nanotubes composites at the high end . The values of T 1 for these SWNT networks are 53 and 4330 K, respectively, while the electronic properties of the polymer, loading of SWNTs, ratio of semiconducting and metallic SWNTs in the composite and doping concentration, all impact the extracted values of T 0 and T 1 ; ,,, T 0 and T 1 for c-OBCB-sorted Hipco SWNT networks are at the lower end of the ranges reported in the literature.…”

Electrical properties of carbon nanotubes/WS2 nanotubes (nanoparticles) hybrid films

“…This model can be applied for fitting of the electrical properties of different types of disordered systems (including carbon nanotubes arrays [11] and CNT based polymer composites [12]) in which large in atomic scale highly conductive regions divided by small insulating barriers. The low temperature saturation of the resistance can be explained by the tendency to saturate the dephasing time of the charge carriers inside an individual CNT observed in weakly disordered systems [13].…”

Charge Transport in Carbon Nanotube Films and Fibers

“…We used a standard dc 4-probe technique for measurements of the electrical and magnetotransport properties of the SWCNTs-SiO 2 coatings in a close-cycled cryostat in the temperature range 1.8-300 K and in the magnetic fields up to 8 T (Ksenevich et al, 2009). Charge transport in the system was found to have general features similar to the properties of SWCNTs fibers produced by polymer-free wet spinning process.…”