Papers – Page 84 – TechConnect Briefs

ALTRAS-CNFET: Full-Band Based Quantum Transport Simulator for Carbon Nanotube Field Effect Transistor Engineering: From Chirality to Device Performance

Tao Y., Liu F., Bian W., Man T.Y., Chan M., He J., Shenzhen Graduate School, Peking University, CN

ALTRAS-CNTS is a powerful full-band based quantum transport simulator for CNT energy-band and CNFET performance calculation. It can directly compute device tunneling gate current in the radial direction, drain current in the channel and other [...]

Studies of Nanotube-based Co-axial and Resonant Oscillators

Xiao S.P., Andersen D., Hou W.Y., The University of Iowa, US

In this paper, we first investigate mechanisms of nanotube-based co-axial oscillators, shown in Figure 1, based on molecular dynamics simulation. We mainly study the interlayer friction between the outer tube and the inner tube when [...]

Fabrication of Cu-encapsulated Carbon Nanotube Inductors

Lee B.C., Lee J-O, Lee B.C., Lee J-O, Choi Y.K., Yoon J.-B., Korea Institute of Science and Technology(KIST), KR

In this works, we developed a top-down fabrication method to pattern and form carbon nanotube(CNT) interconnects with Cu encapsulation. Using this method, we fabricated spiral Cu-encapsulated CNT inductors for RF ICs and investigated the inductance [...]

Synthesis of Nanostructures from Carbides Sheets

Diaz Barriga Arceo L., Garibay Febles V., Orozco E., Zeifert B., Palacios Gonzalez E., German C.R.Sr., Rios-Guerrero L., Leyte Guerrero F., Instituto Politecnico Nacional, MX

Nanotubes and nanoparticles were obtained from a lamellar solid phase using a two step method: mechanical alloying (MA) and heat treatment. MA was used to prepare the monometallic carbide and the bimetallic carbides by milling [...]

Chemistry: The solution for making high performance SWNT-based materials

Simard B., National Research Council of Canada, CA

We explore the chemistry of reduced SWNT and show that it is more advantegous than the chemistry of neutral SWNT. In particular we will show a novel and cost saving functionalization procedureand how it leads [...]

Directed Growth of Carbon Nanotubes Utilizing Plasma Induced Surface Charging Voltage

Law J.B.K., Koo C.K., Thong J.T.L., National University of Singapore, SG

In this work, we present a method for directed lateral growth of CNTs between electrodes on a substrate during an in-situ CNT growth process, by utilizing plasma induced charging inherent in a Radio Frequency (RF) [...]

Low-temperature growth of carbon nanofibers by selective heating of catalyst

Vasenkov A.V., Kolobov V.V., Melechko A.V, CFD Research Corporation, US

A critical technological challenge for many potential carbon-nanotubes (CNT) and carbon nanofibers (CNF) applications is to have a process for a direct synthesis of aligned/micropatterned CNTs/CNFs on temperature-sensitive surfaces. Currently there is no process that [...]

Catalytically active nanostructures derived from self-assembled block copolymer templates for rationally synthesizing single-walled carbon nanotubes and understanding the growth mechanism

Lu C., Lu J., Fu Q., Lu C., Lu J., Liu J., University of California, Merced, US

Employing self-assembled catalyst-containing block copolymer templates, we have successfully generated a variety of highly ordered and uniform-sized catalytically active transition metal nanostructures. These catalyst-containing nanostructures have been used to produce high-quality and single-walled carbon nanotubes [...]

Direct observation of carbon nanostructures growth using in-situ ultrahigh vacuum transmission electron microscopy

Foo Y.L., Lin M., Tan J.P.Y., Boothroyd C.B., Tok E.S., Institute of Materials Research and Engineering, SG

The growth dynamics of single-walled carbon nanotube (SWNT) is observed in real-time using an in-situ ultra-high vacuum transmission electron microscope at 650 oC. The SWNTs preferentially grow on smaller sized catalyst particles (diameter ≤ 6 [...]

Heating double wall carbon nanotubes with UV photons

Puech P., Bassil A., Flahaut E., Bacsa W.S., University Paul Sabatier, FR

Light absorption leads inevitably to electronic excitation and inelastic electron scattering, creating phonons and resulting in the increase of the lattice temperature. By using photons with energies significantly above the fundamental band gap of the [...]