Papers – Page 49 – TechConnect Briefs

Analytical Transmission Electron Microscopy characterization of nano-structured materials

Sharma U., Susnitzky D., Evans Analytical Group, US

This article reviews applications of analytical transmission electron microscopy (TEM) to characterize nano-structured materials and devices. Several practical examples are provided that show the diverse imaging and microanalysis mechanisms available in a modern TEM. By [...]

Functional nanowire microscopy tip

Kim J., Shin Y-H, Yun J.H., Han C-S, Hyun M.S., Korea Institute of Machinery and Materials (KIMM), KR

Excellent electric conductive nickel silicide (NiSi) nanowire (NW) was aligned on a conventional Si tip and performed as an electric force microscopy (EFM) probe. Single crystalline structured NiSi NW was grown in plasma-enhanced chemical vapor [...]

Variable temperature measurements in cryogenic probe stations; forces on the probes

Lindemuth J., Lake Shore Cryotronics, US

Electrical property measurements of nanoscale materials are important for characterization and understanding of materials and devices. Equally important is to measure these properties at various temperatures. We present results using a new probe design that [...]

Preparation of Y3Al5O12:Eu3+ waveguide films by sol-gel method

García Hernández M., García-Murillo A., de J. Carrillo Romo F., Torres Orozco C., García Hernández M., García-Murillo A., Ramírez-Meneses E., Cicata - IPN Unidad Altamira, MX

In this work, Y3Al5O12:Eu3+ (5 mol% Eu3+) optical thick films were obtained by sol-gel process. The films were dip-coated by dip-coating technique. The synthesis was accomplished using metal organic precursors, such as Al(tri-sec-butoxide) Al(OC4H9)3, yttrium [...]

Synthesis and characterization of polypyrrole nanowires using alternating amphiphilic copolymer nanotubes as templates

Chan A.S.W., Groves M., Malardier-Jugroot C., Royal Military College of Canada, CA

It has been reported that poly(styrene-alt-maleic anhydride) (SMA) chains would self-assembled into a nanotube in aqueous solution at pH7 by associating through a linear conformation which favours the association of the chains by decreasing the [...]

Fabrication and characterization of nano-structured ferromagnetic Ti1-xFexO2 thin films

Apetrei R., Negrila C., Macovei D., Dascaleanu V., Teodorescu C.-M., Luca D., Alexandru Ioan Cuza University, RO

Ti1-xFexO2, 300 nm thin films with x ranging between 0.0 and 0.6, have been fabricated by RF magnetron sputtering. Specimen characterization was done by XPS, AFM, XRD,UV-Vis spectrometry, MOKE, and XANES/EXAFS techniques. The AFM and [...]

Fabrication of Non-Chromium Coating Solution with Nano-sized Silica particle for high Insulation Resistance on the Surface of Non-oriented Electrical Steel

Kim J.W., Kwon M.S., Han C.H., POSCO, KR

This study was investigated the effect of nano-sized silica particle on the insulation resistance of non-oriented electrical steel. Several kind of nano-sized Silica Sol was added to coating solution consist of Polyester-Metal phosphate system. The [...]

Improving the structural characterization of supported on glass gold nanoparticles using Atomic Force Microscopy at vacuum

Muñoz Aguirre N., Rivera López J.E., Martínez Pérez L., Tamayo Meza P., Instituto Politecnico Nacional, MX

Surface characteristics of gold nanoparticles [1] at ambient conditions and in vacuum of the order of 10-4 Torr are compared using Atomic Force Microscopy topographic images in tapping mode. Figure 1 shows the improvement of [...]

Real-Time Characterization of Polymer Film Degradation with Quartz Crystal Microbalance with Dissipation Monitoring

Dixon M.C., Gormally M.V., Johal M.S., Q-Sense Inc a Division of Biolin Inc, US

There is a growing need for new technologies to quantitatively measure the surface properties of material interfaces. One technique in particular, the Quartz Crystal Microbalance with Dissipation Monitoring (QCM-D), fulfills the need for monitoring real-time [...]

Dispersed stabilized Pt nanoparticles synthesized from an organometallic precursor

Ramírez-Meneses E., Torres-Huerta A., Domínguez-Crespo M.A., Montiel-Palma V., Hernández-Tapia G., Cicata - IPN Unidad Altamira, MX

In electrocatalysis, carbon materials have been generally employed to support metallic nanoparticles for electrochemical applications. Many methods to prepare CNTs supported metal nanoparticles including electrochemical, microwave irradiation and wet chemical methods have been reported in [...]