A previously overlooked step of carbon nanotube (CNT) growth, incorporating C atoms into the CNT wall through the CNT-catalyst interface, is studied by density functional theory calculations. A significant barrier for incorporating C atoms into the CNT wall (∼2  eV for most used catalysts, Fe, Co, and Ni) is revealed and the incorporation can be the threshold step of CNT growth in most experime...

We have fabricated suspended carbon nanotube (CNT) devices specifically designed for biological sensing applications. We use 6-inch-wafer processes to maximize yield. Our fabrication process produces suspended CNT with clean surfaces and minimal environ mental noise. The electrode layout is compatible with a microfluidic system for delivering liquids and biological molecules to the sensor. We r...

The superior mechanical properties of carbon nanotubes (CNTs) mean they have been regarded as a new material with the potential to revolutionize and enable many advanced technologies. CNTs have extremely high tensile strength ( 150 GPa), high modulus ( 1 TPa), large aspect ratio, low density, good chemical and environmental stability, and high thermal and electrical conductivity. These superior...

0026-2714/$ see front matter 2013 Elsevier Ltd. A http://dx.doi.org/10.1016/j.microrel.2013.03.001 ⇑ Corresponding author. Tel.: +886 734 747 0177; f E-mail address: [email protected] (W.-C. Chiu) In this paper, a simple and low temperature fabrication process, slow spin rate coating and dry etching, is proposed to construct the CNT-interconnects for future VLSI interconnect applications. Two ...

Carbon nanotubes (CNTs) are often processed in suspended form and therefore a release of CNT-suspensions into the aquatic environment is plausible. In this study, the behaviour of two physico-chemically very different CNT types in the presence of varying, environmentally relevant calcium-containing media was investigated, including the long-term colloidal stability and the sedimentary structure...

Multiple-phase nanocomposites filled with carbon nanotubes (CNTs) have been developed for their significant potential in microwave attenuation. The introduction of other phases onto the CNTs to achieve CNT-based heterostructures has been proposed to obtain absorbing materials with enhanced microwave absorption properties and broadband frequency due to their different loss mechanisms. The existe...

The production of high-performance carbon nanotube (CNT) materials demands understanding of the growth behavior of individual CNTs as well as collective effects among CNTs. We demonstrate the first use of grazing incidence small-angle X-ray scattering to monitor in real time the synthesis of CNT films by chemical vapor deposition. We use a custom-built cold-wall reactor along with a high-speed ...