Advanced Materials & Manufacturing – Page 534

Europium-Doped Yttrium Silicate Nanophosphors Prepared by Flame Synthesis

Qin X., Ju Y., Bernhard S., Yao N., Princeton University, US

Europium doped yttrium silicate nanophosphors were successfully synthesized for the first time by using the flame spray pyrolysis method at different silicon and europium concentrations. The effect of silicon concentration on the crystal structure, morphology, [...]

Flowability Modification of Fine Powders by Plasma Enhanced Chemical Vapor Deposition

Spillmann A., Sonnenfeld A., Rudolf von Rohr Ph., Swiss Federal Institute of Technology (ETH), Institute of Process Engineering, CH

Within the scope of this work a novel process to improve the flowability of fine powders is investigated. Nanoparticles are generated by plasma enhanced chemical vapor deposition (PECVD), and deposited on the surface of the [...]

Expansion-Limited Nanocluster Growth in a Plume Formed by MHz-Pulse-Rate Laser Ablation

Rode A.V., Madsen N.R., Gamaly E.G., Luther-Davies B., The Australian National University, AU

Material parameters of a solid experience a dramatic change when cluster size becomes less than a certain critical value. Hence, one can control material properties through control over cluster size. Previously we have produced and [...]

Synthesis and Electrical Characterization of Silicon Nanoparticles for Electronic Applications

Gopireddy D., Takoudis C.G., Gamota D., Zhang J., Brazis P.W., University of Illinois - Chicago, US

In an effort to assess their potential for future nanoelectronic devices, we have fabricated silicon nanoparticles field effect transistors with nanoparticles as the active channel. The nanoparticles of 10-20 nm diameters are grown on a [...]

Overview – Nanoparticulate Dry (Flame) Synthesis & Applications

Pratsinis S.E., ETH Zürich, CH

Flame synthesis is a scalable technology that was developed largely by valiant evolutionary research for manufacture of commodities (e.g. carbon blacks, fumed silica and pigments). In the last 5-10 years, however, major advances in the [...]

Nanoparticle Processes & Applications

Innovative PMMA/CaCO3 Nanocomposites

Avella M., Errico M.E., Gentile G., INSTITUTE OF POLYMER CHEMISTRY AND TECHNOLOGY - CNR, IT

Innovative poly(methyl methacrylate) based nanocomposites filled with two kinds of calcium carbonate nanoparticles, coated with stearic acid and poly(butyl acrylate), were prepared. The influence of the nanoparticles nature and content on the chemical-physical properties of [...]

Gold Composite- and Macroporous Gold Nanoparticle Films by a Vertical Deposition Method

Badilescu S., Kahrizi M., Ashrit P.V., Truong V-V, Concordia University, CA

Composite films have been prepared in one step by a vertical deposition method from the aqueous suspension of gold colloids and polystyrene (PS) microspheres. The composite is formed on a glass substrate by convective assembly [...]

Morphological Consequence of Sonication on Lignin-CNT-Epoxy Composite

Thomas D., Edwards J., Parker R., Ku C.-L., Bryan D., Liao Y-H, Liang R., Florida A & M University, US

This project will utilize SEM and molecular modeling analysis to determine morphological consequences of presonication time on lignin particle size and the joint sonication of lignin with CNT. The investigation will yield a more fundamental [...]

Quantum Dot Dissemination and Behavior in Bacterial Biofilms

Morrow J.B., Holbrook R.D., Zeissler C.J., National Institute of Standards and Technology, US

Quantum dots (QDs) are colloidal semiconductor nanocrystals that photoluminescence emission is proportional to the dot size and have been utilized in fluorescent imaging in biological systems. Biofilms are communities of microorganisms attached to surfaces encased [...]