Papers – Page 67 – TechConnect Briefs

A Comparative Analysis of Transistors Based on Dielectrophoresis-Aligned Carbon Nanotubes (CNTs) and Assembled Random-Network CNTs

Juhala J.L., Griffith B.W., Duan Y., Xue W., Washington State University, US

CNTs have gained significant attention due to their potential as an alternative nanomaterial to be utilized in micro/nano-scale electronics. To continuously improve the performance of CNT-based electronic devices, the CNTs and their manipulation methods must [...]

Optimization of Carbon Nanotube Thin-Film Transistor Fabrication

Kayastha V., Lamb J., Brewer Science, Inc, US

Carbon nanotube–based thin-film transistors have recently gained much interest from many researchers and customers for their potential in large-area electronic applications, including flexible electronics. Single-walled carbon nanotubes (SWCNTs) possess the ability to offer a high [...]

Low-Z, Chemically Resistant, Microfabricated Carbon Composite Transmission Electron Microscope Grids

Zufelt K., Vanfleet R., Davis RC., Brigham Young University, US

An issue that often impacts x-ray and electron analysis of transmission electron microscopy (TEM) samples is the presence of high-Z atoms in the sample substrate. In many cases, it is also desirable that the chosen [...]

Metal Induced Intershell Coupling and Conductance Enhancement in Multiwalled Carbon Nanotubes

Kulshrestha N., Misra A., Misra D.S., Bajpai R., Roy S., Misra A., Misra D.S., Indian Institute of Technology - Bombay, IN

Using two different metal (platinum and Tungsten) depositions on the individual multiwalled carbon nanotubes bridging the spacing between two gold electrodes, we segregate the contributions of change in nanotubes inherent properties and contact-improvement in total [...]

CNTFETs fabricated using an Original Dynamic Air-Brush technique for SWCNTs deposition : application to gas sensing

Bondavalli P., Gorintin L., Feugnet G., Thales Research and Technology, FR

This contribution deals with Carbon Nanotubes Field Effect transistors (CNTFETs) based gas sensors fabricated using a completely new dynamic air-brush technique for SWCNTs deposition. More precisely, we have developed a machine which allows us the [...]

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, [...]