Carbon Nano Structures & Devices – Page 18

Generation and Evaliation of Graphene Depends on the Electron Irradiation Applied to the Fullerene

Matsukawa S., Kubota H., Kumamoto University, JP

Graphene is a flat monolayer of carbon atoms tightly packed into a two-dimensional (2D) honeycomb lattice, and is a basic building block for graphitic materials of all other dimensionalities. Electrons of graphene behave as Dirac [...]

Tunneling Negative Differential Resistance in Flexible Silicone Graphite Composites

Littlejohn S.D., Nogaret A., Crampin S., University of Bath, UK

Developing flexible electronic materials with the ability to amplify signals is a major challenge for bioelectronics. The next step in developing an active nervous system calls for a flexible electronic material that produces a signal [...]

Engineered Piezoelectricity in Graphene

Ong M.T., Reed E.J., Stanford University, US

We discover that piezoelectric effects can be engineered into nonpiezoelectric graphene through the selective surface adsorption of atoms. Our calculations show that doping a single sheet of graphene with atoms on one side results in [...]

Dispersion of chemically-modified graphene and its applications

Han J.T., Kim J-S, Kim S-H, Kim J-S, Kim S-H, Jeong H.J., Jeong S.Y., Jeong H.J., Jeong S.Y., Lee G.W., Korea Electrotechnology Research Institute, KR

In this study, we present straightforward methods to produce large-area GO sheets with fewer defects on the basal plane and for addressing the problems associated with dispersing reduced GO nanosheets in organic solvents for applications. [...]

Flexible Graphene Transistors via Printing Transfer

Chang T.-C., Suh H.-S., Mikael S., Seo J.-H., Nealey P.F., Ma Z., University of Wisconsin-Madison, US

Graphene is an atomic layer material with the characteristics of high mobility, high mechanical strength, transparency and low injection energy barrier with different work function metals. Good transparent electrodes and flexible graphene-based large scale touch [...]

Graphene

Rapid Determination of Purity of Carbon Nanotubes

Wall M., Hodkiewicz J., Thermo Fisher Scientific, US

Raman spectroscopy can provide for quick measurements of the carbonaceous purity of carbon nanotube samples. Carbonaceous purity is a critical parameter for many applications of carbon nanotubes. Raman spectroscopy has been reported many times in [...]

Improved Nanoreinforced Composite Material Bonds with Potential Sensing Capabilities

Starikov D., Price A., Glenn T., Attia F., Fischer M., Bokadoum M., Bensaoula A., Integrated Micro Sensors Inc., US

Dramatic increase in the bond strength of composite/adhesive interfaces of nano reinforced composite material joints and structures has been achieved using laser-assisted fabrication of Micro Column Arrays (MCA) on the surface of the two materials [...]

Magnetic Carbon-Nanotube Thermoplastic Polyurethane Composites

Kong I., Spoljaric S., Shanks R.A., RMIT University, AU

The aim was to prepare composites of PU and magnetite-functionalized CNTs, using physical blending techniques in melt and solution. Objectives included functionalizing the CNT with magnetite (Fe3O4), preparing PU-CNT-Fe3O4 composites using solvent dispersion and melt [...]

Visible Photoluminescence Emission from Chemically Synthesized MWCNT/TiO2 Hybrid Nanostructure

Paul R., Kumbhakar P., Mitra A.K., National Institute of Technology, Durgapur, IN

We report here a simple chemical precipitation process to synthesize a heterostructure of multi-walled carbon nanotubes (MWCNTs) and TiO2 (titania) nanoparticles of average size 3.5 nm. The hybrid structure has been characterized by high resolution [...]