Papers – Page 352 – TechConnect Briefs

Acoustic energy harvesting using nanotube sheet flutter

Kang T.J., Jang E.Y., Lima M.D., Im H., Ovalle-Robles R., Kim T., Kim Y.H., Baughman R.H., Kim T., Kim Y.H., Seoul National University, KR

Energy harvesting from the surrounding environment has attracted much interest for diverse applications. One of the most widely available forms of ambient energy is acoustic noise, which is essentially inexhaustible and everywhere, however few research [...]

Carbon nanotubes based photocathodes for multisource X-Ray generators

Mazellier J.-P., Thales Research & Technology, FR

Carbon nanotubes (CNT) cathodes are cold field emitters. CNT photocathode consist in combination of CNTs with photodetectors. In a CNT photocathode, the photodetector limits the current that the CNT emit under electric field. As a [...]

Ultrafine Sensing Using Carbon Nanotube Arrays

Korach C.S., Cao C., Anger R., Chang S.-H., Kao I., Kukta R.V., Stony Brook University, US

Arrays of Carbon Nanotubes (CNTs) have shown the ability to react as foam-like structures and display local buckling within the bulk. The arrays, or turfs, are high aspect ratio CNT fibers that extend up to [...]

Fabrication and characterization of CNT inductors on flexible plastic substrates

Diao L., Shih W-S, Lamb J., Brewer Science, US

A scalable and compact inductor is one of the critical components for passive radio (RF) frequency devices and sensors. CNT thin films have high yield strength and flexibility at high temperature. RF sensors made of [...]

Failure mechanism and property improvement of carbon-nanotube fibers

Zheng L., Nanyang Technological University, SG

Carbon-nanotube (CNT) fibers have already demonstrated the potentials of retaining the intrinsic properties of individual CNTs at a practical scale level. But current reports in this area show large variations and inconsistence in fiber’s properties, [...]

Direct nanoscale imaging of ballistic and diffusive thermal transport in graphene nanostructures

Kolosov O.V., Pumarol M.E., Tovee P., Rosamond M.C., Petty M.C., Zeze D.A., Falko V., Lancaster University, UK

We report direct imaging of thermal transport in single and few-layer graphene with approximately 50 nm lateral resolution using high vacuum scanning thermal microscopy. Images reveal low thermal resistance of areas of suspended graphene where [...]

Energy Spectrum of a Symmetric Graphene Double-Quantum-Dot System in a Normal Magnetic Field

Morgenstern Horing N.J., Liu S.Y., Silverman S., Raytheon Company, US

We examine the subband energy spectrum of a coupled symmetric Graphene double-quantum- dot system subject to Landau quantization in a normal magnetic eld. To formulate the dispersion relation, we construct the coupled double-dot Graphene Green`s [...]

Detailed studies of graphene grown on C-face SiC

Virojanadara C., Linkoeping University, SE

The registry of adjacent graphene layers grown on the C-terminated SiC surface has been reported to be dramatically different compared to graphene grown on the Si-terminated SiC(0001) surface. Whereas Si-face graphene exhibits sharp spots in [...]

A Novel Electrical Contacting Technology to Graphene

Ghosh B., Dale C., Dewanto R., Keegan N., Hedley J., Newcastle University, UK

The paper reports on a Ni based electrical contacting technology to graphene that is simple and effective and can be adopted by laboratories lacking high grade infrastructure. The graphene surface is masked, activated and then [...]

Synthesis of the string-like CNT having few layers stacking of graphene

Muramatsu K., Toyoda M., Incubation　Alliance,Inc., JP

In this study and development,it challenged in synthesizing of flexible CNT having few layers graphene and showing the excellent physical property different from graphite fibers. In this study,raw material calcined and cobalt acetylacetonato were mixed [...]