10-kV Electron-Diffractive Imaging of Multiwall Carbon Nanotube

10-kV diffractive imaging using newly developed electron diffraction microscope.

A new electron diffraction microscope based on a conventional scanning electron microscope (SEM), for obtaining atomic-level resolution images without causing serious damage to the specimen, has been developed. This microscope in the relatively low-voltage region makes it possible to observe specimens at suitable resolution and record diffraction patterns. Using the microscope we accomplished 1...

Multiwall carbon nanotube microcavity arrays

Metamaterial high pass filter based on periodic wire arrays of multiwalled carbon nanotubes Appl. Experimental demonstration of the slow group velocity of light in two-dimensional coupled photonic crystal microcavity arrays Appl. Free-standing porous silicon single and multiple optical cavities Periodic highly dense multi-wall carbon nanotube (MWCNT) arrays can act as photonic materials exhibit...

Multiwall Carbon Nanotube Reinforcement of Polyacrylonitrile Fibers

Aligning multiwall carbon nanotubes (MWNTs) with the direction of load is desirable for maximizing tensile reinforcement in composites. This has been accomplished by spinning composite fibers containing MWNTs[1]. The shear and elongational flow fields inherent to fiber processing cause the MWNTs to align with the fiber axis. Efficient stress transfer from the matrix to the MWNTs is also a cruci...

Photonics with multiwall carbon nanotube arrays.

We investigate the photonic properties of two-dimensional nanotube arrays for photon energies up to 40 eV and unveil the physics of two distinct applications: deep-UV photonic crystals and total visible absorbers. We find three main regimes: for small intertube spacing of 20-30 nm, we obtain strong Bragg scattering and photonic band gaps in the deep-UV range of 25 approximately 35 eV. For inter...

Thermal transport in multiwall carbon nanotube buckypapers