Papers – Page 69 – TechConnect Briefs

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 [...]

Adhesion and dynamic nanotribology of graphene in polar and non-polar liquid environments studied with ultrasonic force microscopy

Robinson B.J., Kolosov O.V., Lancaster University, UK

We report the characterisation of exfoliated few layer graphene (FLG) flakes using a range of scanning probe techniques. We have examined the nanoscale mechanical and interfacial properties of FLG and its substrate material, SiO2, in [...]

Mechanical properties of suspended few layers graphene sheets

Sridi N., Lebental B., Azevedo J., Gabriel J-C, Ghis A., CEA-Grenoble, FR

We present a method for the experimental determination of the mechanical properties of ultrathin films, whichever the material, and a comparative application to graphene sheets obtained with different fabrication and transfer processes.

The Effect of Growth Temperature on Aluminum Nanocrystal Embedded AlOxNy for Non-Volatile Memory

Chen N.H., Hsieh P-H, Huang F.S., Huang S-J, Huang F.S., Huang S-J, National Tsing Hua University, TW

The aim of this paper is to present a aluminum-based nonvolatile memory of Al2O3 (28 nm)/ Al-rich Al0.54O0.42N0.04 (22 nm)/ Al0.44O0.38N0.18 (3 nm) layered structure on SiO2 (2 nm)/ n-Si by a simple rapid thermal [...]

Tuning Wettability of Electrospun Three-dimensional Scaffolds through Morphology Control

Ahmed F., Choudhury N.R., Dutta N.K., University of South Australia, AU

Surface wettability plays an important role in determining implant’s fate due to direct influence of protein/biomolecule adsorption that governs cell adhesion. The importance of the physical parameters, such as, overall porosity, pore directionality, difference between [...]

Electropulsing induced nanophase decomposition and structural characteristics of film of alloy ZA27

Zhu Y., To S., Lee W.B., Hong Kong Polytechnic University, CN

Nanophases appear very stable and hardly decompose completely under conventional thermal aging, because of their strong preferred crystal orienttation. As one of the advanced processes, electropulsing has been recognized for its efficiency in reducing residual [...]