Carbon Nano Structures & Devices – Page 31

Resistance measurements and weak localization in long SWNTs

Gabrielli P.G., Gabrielli S., Gabrielli P.G., Gabrielli S., Lisi N., ENEA, IT

In the theory of the 1-d electron systems, called Tomonaga-Luttinger-liquid (LL), the correlated electron state is characterized by a parameter g that measures the strength of the interaction between the electrons (g=1 for non-interacting electron [...]

Arkema Inc. Graphistrength ™ Multi-Wall Carbon Nanotubes

McAndrew T.P., Laurent P., Havel M., Roger C., Arkema Inc., US

Arkema Inc. produces multi-wall carbon nanotubes (CNTs), and masterbatches from CNTs in various resins. Electrical and mechanical performance of CNT-containing composite systems is presented.

A High-Flux, Flexible Membrane with Parylene-encapsulated Carbon Nanotubes

Park H.G., In J., Kim S., Fornasiero F., Holt J.K., Grigoropoulos C.P., Noy A., Bakajin O., Lawrence Livermore Natioanal Laboratory, US

We present fabrication and characterization of a membrane based on carbon nanotubes (CNT) and parylene. Carbon nanotubes have shown orders of magnitude enhancement in gas and water permeability compared to estimates generated by conventional theories [...]

Deagglomeration and Dispersion of Carbon Nanotubes Using MicrofluidizerTM High Shear Fluid Processors

Panagiotou T., Bernard J.M., Mesite S.V., Microfluidics, US

Microfluidizer processors are used for reduction and/or deagglomeration of particles in liquid media. These continuous processors force multiphase fluids through microchannels at velocities of up to 500 m/s, exposing them to high shear and impact [...]

Improve Contacts in Carbon Nanotube Networks by In situ Polymerization of Thin Skin of Self-Doped Conducting Polymer

Ma Y., Cheung W., Wei D., Bogozi A., Chiu P.L., He H., Rutgers, US

Herein, we report the conductivity of SWNT networks can be dramatically improved by in-situ polymerization of a thin layer of self-doped conducting polymer around and along the carbon nanotubes. The formed conducting polymer improves the [...]

Modeling and simulation of adhesion between carbon nanotubes and surfaces

Paudel N.R., Ohashi T., Dai L., Buldum A., The University of Akron, US

There have been also many experimental studies which were performed to compare the adhesion properties of carbon nanotubes with that of a gecko’s foot on smooth surfaces. Yurdumakan et al. measured the adhesive force of [...]

The Influence of DNA Wrapping on SWNT Optical Absorption in Perpendicular Polarization

Snyder S.E., Rotkin S.V., Lehigh University, US

Single-walled carbon nanotubes (SWNTs) hold great promise for the next generation of electronic devices due to their small, biologically compatible size, exceptional electronic properties, and the range of bandgaps accessible with variations in diameter and [...]

Chemical doping by sulfuric acid in double wall carbon nanotubes

Puech P., Ghandour A., Sapelkin A., Flahaut E., Dunstan D., Bacsa W., CEMES CNRS Univ Toulouse, FR

Charge transfer due to chemical doping in carbon nanotubes [1] can be detected through changes in the band shape and spectral shifts of the Raman G-band. In double wall carbon nanotubes, the inner tube is [...]

First disclosure of a viable semi-commercial single CNT-based FE device

Daren S., Kalifa I., Peretz S., El-Mul Technologies Ltd, IL

Several disclosures covering Carbon Nanotube (CNT) based devices for Field Emitter (FE) applications have been published, none of which have shown commercial viability. As a result of our research and development, El-Mul Technologies has recently [...]

Controlled Assembly of Highly Density SWNT Networks on a Flexible Parylene-C Substrate

Chen C.-L., Xiong X., Busnaina A., Dokmeci M.R., Northeastern University, US

Single-walled carbon nanotubes (SWNTs) with their attractive properties such as large surface-to-volume ratio, high packing density and long-range order may serve as the potential building blocks for the next generation of nanoscale devices. The integration [...]