SWCNT – Page 2 – TechConnect Briefs

Violet-Blue Emission From TiO2/SWCNT Hybrid Structure Synthesized by a Simple Chemical Route

Paul R., Kumbhakar P., Mitra A.K., NIT Durgapur India, IN

Using a lucid wet chemical process under room temperature, titania nanocrystallites of average size 5 nm have been adhered to the surfaces of SWCNT bundles. The hybrid structure has been characterized by high resolution transmission [...]

Wafer Level Assembly of Single-Walled Carbon Nanotube (SWCNT) Arrays with Precise Positioning

Cao J., Arun A., Lister K., Acquaviva D., Bhandari J., Ionescu A.M., Ecole Polytechnique Fédérale de Lausanne, CH

A novel wafer level assembly method to fabricate SWCNT arrays with precise positioning of each individual SWCNT by ac-dielectrophoresis (DEP) is presented. Unlike the previous CNT assembly performed directly between electrode pairs, in this work, [...]

Effect of Position and Orientation of Stone-Wales Defects on the Fracture Behavior of a Zigzag Single-Walled Carbon Nanotube

Talukdar K., Mitra A.K., NIT Durgapur India, IN

A (10, 0) SWCNT of length 42.59 Å and aspect ratio 10.9 is studied by Molecular Dynamics (MD) simulation both in perfect condition and also with one, two, three or four SW defects introduced into [...]

Synthesis and Propertie of CNT Yarns and Sheets

Lashmore D., Schauer M., White B., Braden R., Nanocomp, US

We have developed an automated CVD process based on gas phase pyrolysis for the synthesis of high strength carbon nanotubes based sheets and yarns. This has led to a unique process for continuous production of [...]

Formation of Single Walled Carbon Nanotubes Via the Interaction of Graphene Nanoribbons: ab initio Density Functional Calculations

Du A.J., Smith S.C., Lu G.Q., University of Queensland, AU

Recently, single graphite layers, referred to as Graphene nanoribbons (GNR) have been prepared experimentally by using conventional methods, such as cutting mechanically exfoloiated graphenes or by patterning epitaxially grown graphenes [1-2]. On the other hand, [...]

Alcohol vapor sensors using multiple spray-coated SWCNTs

Kim S.J., Choi Y.M., Lee G.W., Kyungnam University, KR

Recent advances in purification, dissolution and dispersion technologies of carbon nanotubes (CNTs) have provided opportunities for the development of various CNT gas sensors[1-2]. Here, we suggest an alcohol vapor sensor using single-walled carbon nanotube (SWCNT)-composites [...]

Investigation of Carbon Nanotube Mechanical Properties Using Atomistic-Continuum Mechanics Method

Wu C-J, Chou C.Y., Han C-N, Chiang K.N., Advanced Microsystem Packaging and Nano-Mechanics Research Laboratory, National Tsing Hua University, TW

This paper utilizes atomistic-continuum mechanics method (ACM) to investigate the mechanical properties of single-walled carbon nanotubes (SWCNTs). Fundamental to the proposed concept is the perception that a carbon nanotube is a geometrical frame-like structure, and [...]

An Innovative Ignition Method using SWCNTs and a Camera Flash

Danczyk S., Chehroudi B., ERC/ Air Force Research Laboratory, US

It was reported in the literature that as-produced single-walled carbon nanotubes (SWCNTs) ignited when accidentally subjected to a common photographic flash at a close range. This effect was observed for dry and “fluffy” SWCNTs but [...]