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Photomechanical Response in Graphene Nanoplatelet Composites

Loomis J., King B., Burkhead T., Xu P., Bessler N., Terentjev E., Panchapakesan B., University of Louisville, US

Large light-induced reversible and elastic responses of graphene nanoplatelet (GNP) polymer composites are reported. Homogeneous mixtures of GNP/polydimethylsiloxane (PDMS) composites (0.1–5 wt%) were prepared and their near-infrared (NIR) mechanical responses studied with increasing pre-strains. Using [...]

Carbon Based Dimensional Composites

Loomis J., King B., Panchapakesan B., University of Louisville, US

Dimensional dependence of mechanical response in carbon nanostructure composites to near-infrared (NIR) light are reported. Using polydimethylsiloxane, composites were fabricated with one-dimensional multi-wall carbon nanotubes (MWCNTs), two dimensional single-layer graphene, two and a half-dimensional graphene [...]

A New Type of Carbon Nanostructure Formed Within a Metal-Matrix

Salamanca-Riba L., Herzing A., Mansour A., Hall A., Forrest D.R., LeMieux M., Shugart J., University of Maryland, US

Recent advances in nanomanufacturing have made it possible for large amounts (up to 6 wt.%) of carbon to be incorporated as nanoscale carbon during a reaction process in molten metals. These materials are called “covetics”. [...]

The Detection Properties of Bulky Wrapped MWCNTs Towards Hazardous Gases

Olszewski A., Lara-Romero J., Cortes P., Youngstown State University, US

Nowadays, chemical sensors are attracting great interest because of their widespread applications in the industrial and environmental fields. Indeed, sensors with high sensitivity and selectivity are required for real-time detection of hazardous gas leaks. In [...]

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 [...]

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 [...]

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 [...]