DE – Page 7 – TechConnect Briefs

Innovative Use of Ultrasound in the Production of High-Performance Coatings

Hielscher K., Hielscher Ultrasonics GmbH, DE

The metal oxide nanoparticles include nano-sized zinc oxide, titanium oxide, iron oxide, zirconium oxide and cerium oxide, as well as mixed metal compounds, such as indium tin oxide, zirconium and titanium. For the color, paint [...]

Modelling the spectral reflectances of Sol-Gel tin doped indium oxide and aluminium doped zinc oxide coatings

Wolf N., Gerstenlauer D., Manara J., Bavarian Center for Applied Energy Research, DE

In this work it is shown that it is possible to model the spectral reflectances of tin doped indium oxide (ITO) and aluminium doped zinc oxide (AZO) Sol-Gel functional layers with different numbers of single [...]

Nanoparticle release quantification of sanding-induced airborne particle emissions from artificially aged/weathered nanocomposites

Goehler D., Stintz M., Technical University of Dresden, DE

Risks of substances to health, safety and environment arise by the coexistence of material toxicity and material exposure [1]. In view of the steadily increasing production, processing and use, a risk assessment of nanomaterials is [...]

Ultrasonically-Assisted Preparation and Functionalization of Graphene

Hielscher K., Hielscher Ultrasonics, DE

Since the extraordinary characteristics of graphite and graphene are known, several methods for its preparation have been developed. Beside to chemical production of graphenes from graphene oxide in multi-step processes, for which very strong oxidizing [...]

One-pot Ultrafast Synthesis of Stable and Surface Functionalized Nanoparticles

Klaumünzer M., Hübner J., Wolfrum C., Kryschi C., Peukert W., University Erlangen-Nürnberg, DE

An ultrafast and simple one step synthesis of noble metal nanoparticles and semiconducting metaloxide nanoparticles with aminoblockcopolymer O,O’- Bis (2-aminopropyl) polypropylene glycol- block- polyethylene glycol- block- polypropylene glycols (Jeffamine; 1900 g/mol) is reported. No additional [...]

Precipitation of In(OH)3 and InOOH Nanocrystals for the use in nanoelectronics: Phase Transition Behavior and Oriented Aggregation

Klaumünzer M., Mackovic M., Ferstl P., Voigt M., Spiecker E., Meyer B., Peukert W., University Erlangen-Nürnberg, DE

With respect to diverse applications in the wide field of nanoelectronics we characterize a specific phase transition behavior and oriented aggregation (OA) during wet chemical synthesis of In(OH)3 nanocrystals as a wide band gap material [...]

Fabrication of polymer nanocomposites based on CNTs in PDMS matrix

Imbaby M., Gottschalk K., Ulm University, DE

This research presents a new approach to fabricate polymer/carbon nanotubes (CNT) nanocomposites. Multiwall carbon nanotubes with 6-9 nm diameter and 1.5 um length is used. Polydimethysolixane (PDMS), Acetone, and Polyethylene oxide (PEO) are used as [...]

Composite microelectrodes from PEDOT and carbon nanotubes enable advanced neuronal recording, stimulation and sensing

Gerwig R., Cesare P., Kraushaar U., Reinartz S., Giugliano M., Kilias A., Ruther P., Stett A., Stelzle M., Natural and Medical Sciences Institute, NMI, DE

The aim of this work was to design an advanced microelectrode material for neurotechnology. In order to improve signal-to-noise ratio, stimulation and sensing properties as well as cell viability, microelectrodes were modified with poly(3,4-ethylenedioxythiophene) (PEDOT) [...]

Investigation of the MgO absorbate and the MgO/Fe on GaAs(001) surface by means of XPS and XPD

Handschak D., Schönbohm F., Lühr T., Keutner C., Berges U., Westphal C., TU Dortmund, DE

We report a combined high-resolution photoemission and photoelectron diraction investigation of a magnesium oxide adsorbate on an Fe surface grown on a GaAs(4x2)-reconstructed substrate. MgO is an appliciable insulator in magnetic tunnel junctions (MTJ) based [...]

Ionic Liquids as Novel Dispersing Agents for Nanoparticles: Synthesis and Stabilization of Nanomaterials – Safe-to-Handle Dispersions

Beyersdorff T.F., Schubert T.J.S., Stiemke F., Iolitec - Ionic Liquids Technologies GmbH, DE

In this contribution we will present the use of ILs as green solvents for the sizecontrolled synthesis of metal nanoparticles and the influence of the anion on the size of the synthesized materials (Fig 1). [...]