Papers – Page 74 – TechConnect Briefs

Nano-mapping Material Interfaces via Hot Electrons

Goh K.E.J., Troadec C., Institute of Materials Research and Engineering, SG

As devices shrink below 100 nm in size, nanoscale imperfections (due to defects and doping) at material interfaces become significant perturbations to ideal device characteristics and in some cases can dominate the device behavior. Of [...]

Laser Postionization Secondary Neutral Mass Spectrometry for Analysis on the Nanometer-Scale – the Followup

Veryovkin I.V., Baryshev S.V., Zinovev A.V., Tripa C.E., Peng Q., Elam J.W., Pellin M.J., Argonne National Laboratory, US

Depth resolution on the order of a few atomic layers has been demonstrated by initial tests of the dual beam sputter depth profiling with the SARISA laser post-ionization secondary neutral mass spectrometry instrument, which was [...]

Mechanical properties of PECVD Si3N4 thin films with rapid thermal annealing using finite element simulation

Chiang C-Y, Huang Z-K, Chen K.-S., National Cheng Kung University, TW

The entire study includes Si3N4 specimen fabrication, material and mechanical characterization, a new physical model derivation, as well as the corresponding finite element analysis (FEA) and simulations. Nevertheless, the standard method used for nanoindentation were [...]

Synthesis of Polypyrrole within Polymeric Nanotemplates in Aqueous Environment

Li X., Maladier-Jugroot C., Royal Military College of Canada, CA

cations (1-2). Polypyrrole is one of the most studied conducting polymers due to its good electrical conductivity, environmental stability and relatively easy synthesis (3-6). Earlier we reported an innovative way of synthesizing polypyrrole within nanotemplates [...]

Dispersing carbon nanotubes in polymer nanocomposites: detecting individually dispersed tubes

Tishkova V., Bonnet G., Puechmont P., Flahaut E., Bacsa W.S., CEMES, Univ. Toulouse, FR

Carbon nanotubes (CNTs) are used to make polymer composites conductive. Small amounts of CNTs (0.1-1 wt%) increase the conductivity by several orders of magnitude. The electrical percolation threshold depends strongly on the dispersion state of [...]

Using proton NMR to characterize functionalized single-walled carbon nanotubes

Nelson D.J., University of Oklahoma, US

Single-walled carbon nanotubes (SWCNTs) can be functionalized covalently at SWCNT ends, covalently at SWCNT sidewalls, or by complexation with SWCNT sidewalls. Each type of product has a wide range of applications, but sometimes the full [...]

Single Particle Resolution Zeta Potential Technique

Griffiths D., Bernt W., Hole P., Sullivan J., Malloy A., Carr B., NanoSight USA, US

A novel addition to a technique for the analysis of nanoparticles in a suspension is described. The Nanoparticle Tracking Analysis (NTA) technique visualizes then sizes individual nanoparticles, based on their Brownian motion. Unlike classical light [...]

Maintaining a Stable Engineered Nanomaterials Process through Material Characterization during the Nano Product Life Cycle

Salamon A.W., PerkinElmer Corporation, US

Nanomaterial synthesis, end-product formulation, and nanomaterials’ wide range of applications are outpacing regulations and standard methods. No matter what your nano-end-product application may be, from food to pharmaceuticals to petrochemicals, there are seven key characteristics [...]