Temperature dependent switching of magnetoresistance in multiwall carbon nanotube-polypyrrole composite fibrils

Water-soluble multiwall-carbon-nanotube-polythiophene composite for bilayer photovoltaics

A water-soluble acid oxidized multiwall carbon nanotube o-MWCNTs -polythiophene composite for bilayer photovoltaics is reported. Discrete heterojunction photovoltaic cells utilizing this nanocomposite material as the donor layer exhibit a 20% increase in fill factor and commensurate increase in power conversion efficiency as compared to cells without o-MWCNTs. Crucially o-MWCNTs are incorporate...

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...

Thermal transport in multiwall carbon nanotube buckypapers

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...

Artificial Neural Network Based Prediction Hardness of Al2024-Multiwall Carbon Nanotube Composite Prepared by Mechanical Alloying

In this study, artificial neural network was used to predict the microhardness of Al2024-multiwall carbon nanotube(MWCNT) composite prepared by mechanical alloying. Accordingly, the operational condition, i.e., the amount of reinforcement, ball to powder weight ratio, compaction pressure, milling time, time and temperature of sintering as well as vial speed were selected as independent input an...