Materials Literature
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Figure 10.8 Temperature dependencies of the resistivity calculated for armchair and zigzag SWCNTs. In Figure 10.9, we show the temperature dependencies of the resistances for a m-SWCNT, which are hole doped by applying gate voltages (Vg) of –10 V and 2 V, respectively. The diameter d of the tube is about 1.5 nm and th…
Established in 1964, the IUCN Red List of Threatened Species has evolved to become the world’s most comprehensive information source on the global conservation status of animal, fungi and plant species.
Under the assumption that there is one major site of field emission and its emitting area denoted by Ae and with E = b(V/d) accounting for enhancement where V is the applied voltage, the total pre-breakdown current I as I = JAe in logarithmic form is given by I = (AeB1b2V2/(fd2)) exp (–dB2f3/2/(bV)) (9.2) The complete…
Optically erasing disorder in semiconductor
The color illustrations for Chapters 6, 11, 12, 15 and 16 are included, as follows: Figures 6.2, 6.3, 6.6 Figure 11.2 Figures 12.1, 12.6 Figure 15.1 Figure 16.1
Established in 1964, the IUCN Red List of Threatened Species has evolved to become the world’s most comprehensive information source on the global conservation status of animal, fungi and plant species.
We present detailed magnetic properties of Ni magnetic nano-particles embedded in multiwall carbon nanotubes (MWCNTs). The measured room-temperature saturation magnetization for the nickel nanoparticles is about three times larger than the expected value from the nickel concentration determined independently from indu…
We numerically investigate dynamics of magnetic chains and flow characteristics in a two-dimensional shear flow under the influence of a magnetic field applied externally. A direct simulation method is employed to solve the particulate flow in the creeping flow regime, taking into account both magnetic and hydrodynami…
We study the interaction of electromagnetic waves (EM) with metallic nanowire systems for frequencies not far from the surface plasma frequency (polaritonic range). We employ calculation and simulation to show that when excited at one end with axially polarized EM waves, nanowires can function as efficient waveguides…
The rapid advance in genome sequencing presents substantial challenges for protein functional assignment, with half or more of new protein sequences inferred from these genomes having uncertain assignments. The assignment of enzyme function in functionally diverse superfamilies represents a particular challenge, which…
This chapter reports the main features of rigid carbon-polymer composite materials for electrochemical DNA biosensing. Novel approaches based on composites modified with biomolecules (bio- composites) and nanostructured materials (nanocomposites) for the improved biosensing of DNA are also discussed.
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Raman spectroscopy is a powerful technique for characterizing carbon materials and their derivatives. In this project, Raman spectroscopy was used to characterize graphene and its composites with the ultimate aim of developing graphene composites for use as wide area strain sensors in structural engineering applicatio…
Multi-cell KEMS offers many advantages over single cell instruments in regard to in-situ temperature calibration and studies on high temperature alloys and oxides of interest to NASA. The instrument at NASA Glenn is a 90 deg magnetic sector instrument originally designed for single cell operation. The conversion of th…
International audience
Figure 1.12 The first two band-to-band transitions for light polarized along the CNT axis (a) and perpendicular to the CNT axis (b). Adapted from [23]. 1.5.2 ExcitonsIn general, the optical properties of a certain material can be well described by the single particle picture and band-to-band transitions. However, for…
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Vibration-induced failure of devices has plagued the developers of mechanical systems since the development of early machinery. This problem has now manifested itself into design issues in small-scale mechanical devices. Since the first microelectromechanical device was reported in 1967, numerous issues with the longe…
INTRODUCTION Molecules whose mirror images cannot be superimposed on each other are identified as being chiral and an entire area of separation science has developed around the resolution of such compounds. Initially, scientists associated the phenomenon of optical rotation with the presence of carbon atoms bound to f…
A single-wall carbon nanotube (SWCNT) can be viewed as a single layer of graphite (graphene) rolled up into a seamless cylinder. Differentiated by the direction of rolling up, an SWCNT can be a semiconducting SWCNT (s-SWCNT) or a metallic SWCNT (m-SWCNT). An S-SWCNT is a type of semiconducting material with bandgap in…