CH – Page 9 – TechConnect Briefs

Quantum Correction for the Current-Based One-Particle Monte-Carlo Method

Brugger S.C., Wirthmueller A., Schenk A., ETH Zürich, CH

In a previous work we proposed a one-particle Monte-Carlo method based on equations for the currents. Our method has the advantage of being able to take into account arbitrary generation-recombination processes self-consistently. Recently, we extended [...]

Ceramic foams directly-coated with flame-made V2O5/TiO2

Schimmoeller B., Schulz H., Pratsinis S.E., Bareiss A., Reitzmann A., Kraushaar-Czanetzki B., Swiss Federal Institute of Technology (ETH Zürich ), CH

Flame-made airborne V2O5/TiO2 nanoparticles were deposited directly onto mullite foam supports making ready-to-use catalysts for the o-xylene conversion to phthalic anhydride. These particles containing 10 wt.% V2O5 were made by combustion of liquid precursor sprays [...]

Two-nozzle flame synthesis of tailored Pt/Ba/Al2O3 nanoparticles for NOx storage-reduction

Strobel R., Piacentini M., Maciejewski M., Baiker A., Pratsinis S.E., ETH Zürich, CH

NOx storage reduction (NSR) catalysts are applied for the abatement of NOx from engines operating under lean conditions, where conventional TWC catalysts are inefficient. Here, a novel two-nozzle flame spray pyrolysis (FSP) process was developed [...]

Synthesis of visible light active nanocrystalline bismuth oxide based photocatalysts

Akurati K.K., Vital A., Reifler F., Ritter A., Graule T., Swiss federal laboratories for materials science & technology, EMPA, CH

Photocatalysis phenomenon has attracted considerable interest in recent years because of its usage in water purification, environmental cleaning, solar energy conversion and generation of alternative energy resources. To date, TiO2 has undoubtedly proven to be [...]

Characterisation of Electrical Fields of Buried Interdigitated Nanoscale Ti-Electrode Arrays by a Novel Atomic Force Microscopy Measurement Procedure and Their Fabrication by FIB Milling

Jenke M.G., Santschi Ch., Hoffmann P., EPFL (Ecole Polytechnique Fédérale de Lausanne), CH

The fabrication and characterisation of interdigitated titanium nanoelectrode arrays with 500nm and 50nm width and spacing is described in this work. The electrical-field above the fabricated 500nm electrodes can be sensed by means of a [...]

A charge based compact flicker noise model including short channel effects

Roy A.S., Enz C.C., EPFL, CH

The low-frequency (LF) noise in MOS devices has been the subject of intensive research during past years. It is becoming a major concern for scaled devices because the LF noise increases as the inverse of [...]

Theory of source-drain partitioning in MOSFET

Roy A.S., Enz C.C., Sallese J.M., EPFL, CH

The Ward-Dutton (WD) partitioning scheme is used extensively to develop transient and high frequency advanced compact models for MOSFET devices. Recently it has been shown that WD partitioning fails for field dependent mobility or for [...]

Embeddable Low-Voltage Micropump using Electroosmosis of the Second Kind

Heldal T., Volden T., Auerswald J., Knapp H., IQ Micro Inc., CH

A low-voltage micropump with no moving parts and based on standard MEMS fabrication techniques has been developed. High pumping rate is achieved by using electroosmosis of the second kind (EO2). The pump has been characterized [...]

Electrophoretic RNA Transport Through Transmembrane Carbon Nanotubes

Zimmerli U., Koumoutsakos P., ETH Zürich, CH

We study electrophoretic transport of RNA through carbon nanotubes embedded in membranes using molecular dynamics simulations. % Doped and naked carbon nanotubes are inserted into a dodecane membrane and a dimyristoylphosphatidylcholine lipid bilayer and we [...]

Novel surface architectures for biomimetic lipid membranes

Reimhult E., Merz C., Ye Q., Textor M., Swiss Federal Institute of Technology (ETH Zürich ), CH

Many important biological processes occur at, via or across one of the various lipid membranes present in the cell. These include transport governed by transmembrane proteins constituting more than 50% of all drug targets of [...]