Papers – Page 659 – TechConnect Briefs

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 [...]

Linear scaling techniques for first-principle calculations of large nanowire devices

Zhang D., Polizzi E., University of Massachusetts, FR

This paper aims to provide a sound basis to face the challenges in large scale atomistic simulations for applications ranging from material sciences and chemistry to nanoelectronics and bio-nanotechnology. In nanoelectronics, large scale ’ab-initio’ simulations [...]

New developments in the purification, filling and functionalisation of carbon nanotubes

Clarke R., Thomas Swan & Company Limited, UK

A substantial body of research has been focused on the preparation of high purity carbon nanotubes (CNT) in a large scale. Subsequently the purified CNTs can then be filled or functionalized depending on the envisaged [...]

Growth of Nanostructured Diamond, Diamond-Like Carbon, and Carbon Nanotubes in a Low Pressure Inductively Coupled Plasma

Okada K., National Institute for Materials Science, JP

A 13.56 MHz low pressure inductively coupled CH4/CO/H2 plasma has been applied to prepare nanocrystalline diamond particles of 200-700 nm diameter. The minimum diameter of the particles was found to be 5 nm. Two-dimensional platelet-like [...]

Diameter Selective Growth of Vertically Aligned Single Walled Carbon Nanotubes by Ethanol Flow Control

Hahm M.G., Noah M.A., Kwon Y., Jung Y.J., Northeastern University, US

The role of ethanol flow rate in CVD process for the diameter control of vertically aligned-SWNTs is presented. Three different flow rates of ethanol (50, 100, and 200 sccm) were supplied to grow VA-SWNTs while [...]

Electrospun TiO2 nanofibers for gas sensing applications

Kim D.Y., Kim I-D, Rothschild A., Tuller H.L., Kim D.Y., Kim I-D, Jo S.M., Korea Institute of Science and Technology, KR

TiO2 fiber mats were deposited onto Al2O3 substrates with interdigitated Pt electrodes by means of electrospinning from a solution of DMF and PVAc synthesized using bulk radical polymerization of titanium propoxide and acetic acid as [...]

Wireless Micro and Nano Sensors for Physiological and Environmental Monitoring

Kaminska B., Simon Fraser University, CA

A wearable physiological/environmental monitoring system and a practical implementation are presented. The technical requirements for wearable electronics and sensors have been specified with an example of ECG, oxygenometer, and wireless network-based bidirectional communication. A presented [...]