NL – Page 2 – TechConnect Briefs

Hydrogel-based multi-stimuli responsive cilia

Glazer P.J., Leuven J., An H., Lemay S.G., Mendes E., Delft University of Technology, NL

We present large-scale multi-responsive cilia arrays that can be stimulated environmentally (via a pH change), electrically or magnetically. By means of micro-fabrication techniques, we created high-aspect ratio molds on which the polymer solution was cast. [...]

High accuracy dual side overlay with wet anisotropic etching for HAR MEMS

van Zeijl H.W., Best K., Sarro P.M., Delft University of Technology, NL

Through wafer etching of silicon using anisotropic wet chemical etch ants like KOH is a key process in the fabrication of many types of MEMS devices. In this work, a dual side 2 mask process [...]

Preparation Routes to Aqueous Graphene Dispersions and Their Influence on Electrical Conductivity of Polymer Composites

Ghislandi M., Tkalya E., Alekseev A., Koning C.E., de With G., TU/e, NL

In this work, starting from graphite, we produced graphene dispersed in water following the two main chemical conversion approaches and a physical conversion via ultrasonic exfoliation. Subsequently, graphene /polystyrene (PS) composites were prepared using the [...]

Electrical conductivity of carbon nanopowder fillers and their respective polymer composites prepared via latex technology

Ghislandi M., Marinho B., Tkalya E., Koning C.E., de With G., Eindhoven University of Technology, NL

The electrical conductivity of graphene, multi-wall carbon nanotubes (MWCNTs) and carbon black (CB) nanopowders, and graphite powder is characterized in the form of paper-like films (buckypapers) and by means of powder compression. Subsequently, carbon filler [...]

Application of focused ion beam technology for photonic nanostructures

Ay F., Gadgil V.J., Geskus D., Aravazhi S., Wörhoff K., Pollnau M., MESA+ institute of nanotechnology, University of Twente, NL

Al2O3 and KY(WO4)2 are promising materials for photonic applications with excellent optical properties and of interest for obtaining on chip resonator structures. However, there is no method available to fabricate these structures except FIB technology. [...]

Trends in Nanotech patenting for “clean energy” applications

Veefkind V., Absalom R., Michalitsch R., Hutado-Albir J., Kallinger C., European Patent Office, NL

We will show some of the trends in patenting clean energy applications and indicate where nanotechnology presently plays a role in this.

Using liquid crystals to improve the performance of luminescent solar concentrator

Debije M., Eindhoven University of Technology, NL

The luminescent solar concentrator (LSC) has been proposed as a cost-effective solution to bring electricity generation from sunlight into the built environment. The basic LSC design consists of a plastic plate containing or topped by [...]

Size distribution determination of nanoparticles and nanosized pores by small-angle X-Ray scattering on a multi-purpose X-ray diffractometer platform

Bolze J., Rekhi S., Macchiarola K., Litteer B., PANalytical B.V., NL

We present the small-angle X-ray scattering (SAXS) technique for the investigation of crystalline and amorphous materials on a mesoscopic length scale ranging from ca. 1 - 100 nm. Dry powders or dispersions of inorganic and [...]

Modification of rubber surface with hydrogenated diamond-like carbon thin films

Pei Y.T., Bui X.L., De Hosson J.Th.M., University of Groningen, NL

Thin films of hydrogenated diamond-like carbon (DLC) have been deposited on hydrogenated nitrile butadiene rubber (HNBR) for reduction of friction and enhancement of wear resistance of dynamic rubber seals, by sputtering graphite targets in C2H2/Ar [...]

Stretegies for fabrication of nanostructures using focused ion beam technology

Gadgil V.J., Mesa+ Institute for Nanotechnology, NL

Recently FIB is increasingly being used for fabrication of nanosturctures and rapid prototyping. In the area of optical sciences, FIB is used for fabrication of 2D and 3D photonic devices. One of the problems in [...]