plasma – Page 2 – TechConnect Briefs

Dielectric performance of Polymer Nanocomposites Synthesized by Atmospheric-pressure Plasma-treated Silica Nanoparticles

Yan W., University of New South Wales, AU

The incorporation of nanoparticles can effectively enhance the dielectric performance of polymers. However, the organic-inorganic incompatibility prevents the nanocomposites from obtaining the desired properties. To overcome this issue, coupling agents have been used to coat [...]

A Novel Pulsed High-density Plasma Process for Nanoparticle Synthesis

Helmersson U., Söderström D., Pilch I., Pillay S., Brenning N., Linkoping University, SE

Today there are various plasma techniques where material is sputtered and used to synthesize nanoparticles. However, we have been unable to identify anyone ionizing the sputtered material in such a process. The advantage of ionizing [...]

Soft plasma polymer coatings based on atomic polymerization

Cech V., Trivedi R., Lichovnikova S., Hoferek L., Brno University of Technology, CZ

Plasma polymerization is a thin film-forming process based on atomic polymerization. Plasma polymer films deposited from organosilicon monomers constitute a special class of dielectric coatings with controllable organic/inorganic character and cross-linking that enable optimization of [...]

Synthesis of highly-doped silicon and germanium nanoparticles in a low-pressure plasma-reactor for thermoelectric and solar applications

Grimm H., Petermann N., Gupta A., Wiggers H., University of Duisburg-Essen, DE

Microwave-plasma induced thermal decomposition of gaseous precursors like germane (GeH4) and silane (SiH4) is used to synthesize semiconductor nanoparticles for thermoelectric and thermal applications. P and n-doping can be achieved by mixing silane and germane [...]

Gas phase synthesis of silica nanoparticles in a hybrid microwave-plasma hot-wall reactor

Abdali A., Moritz B., Wiggers H., Schulz C., University of Duisburg-Essen, DE

A microwave plasma reactor was constructed for gas phase synthesis of silica nanoparticles from tetraethoxysilane and a subsequent hot-wall furnace was used to enable for different temperature/time profiles. This combination has enabled us to investigate [...]

Antibacterial activity on Polyamide and Natural fabrics using Low Temperature Plasma

Shahidi S., Rashidi A., Wiener J., Ghoranneviss M., I.A. University, IR

Polyamide (PA) synthetic textiles are among the most used fibers in the biomedical textile field [1]. Wounds often provide a favorable environment for the colonization of microorganisms. In order to improve the opportunity for wound [...]

Super-hydrophobic and/or Super-hydrophilic Surfaces Made by Plasma Process

Chen L., Henein G., Liddle J.A., National Institute of Standards and Technology, US

Superhydrophobic and superhydrophilic surfaces are generally made by modifying the surface with chemistry and introducing roughness or patterns on surfaces. The processes are generally complex and time-consuming. In this paper, we introduce a simple and [...]

Modeling of multi-scale processes during plasma-assisted growth of carbon nanotubes

Vasenkov A.V., Kolobov V.I., CFD Research Corporation, US

Multi-Scale Computational Framework (MSCF) has been recently developed for nanostructured materials’ fabrication. This framework integrates a Computational Fluid Dynamic solver for computing reactor scale process, a Kinetic Monte Carlo simulator for the growth of nanostructured [...]

Application of Magnetic Neutral Loop Discharge Plasma in Deep Quartz and Silicon Etching Process for MEMS/NEMS Devices Fabrication

Morikawa Y., Hayashi T., Suu K., Ishikawa M., ULVAC, Inc., JP

ULVAC’s Si deep etching technique has achieved high etching rate as high as 20 um/min as well as extremely high selectivity over resist mask as high as 100 or higher ensuring good etching performance.

Multi-Scale Modeling of Processing of Carbon Nanotubes

Choi H.S., Kim J., Kim K.H., Hong K-H, Kim J., Kim K.H., Lee H.S., Shin J-K, Vasenkov A.V., Fedoseyev A.I., Kolobov V., Samsung Advanced Institute of Technology, KR

The current rapid development of nanotechnology has created a significant interest to predict the behavior of materials from the atomic to the engineering scales. However, it was found that such prediction is a very challenging [...]