DE – Page 24 – TechConnect Briefs

Ab initio calculation of tunneling current through ultra-thin SiO2 gate dielectric of MOS Structure, including the influence of oxygen vacancies on the tunneling current

Nadimi E., Janisch R., Radehaus C., TU Chemnitz, DE

We used a first-principle atomistic scale method, based on density functional theory and non-equilibrium Green’s function to study the electron tunneling current through ultra thin silicon oxide films. The Si/SiO2 model interface has been constructed [...]

Silicon Nanoparticles contacted by metal nanogaps for FET applications

Wolff K., Hilleringmann U., University of Paderborn, DE

A low-cost and simple fabrication technique is proposed to prepare a bottom-gate FET applying nanoparticles of silicon (nc-Si). Nanoparticles were contacted by metal nanogaps and characterised subsequently. Conclusions of contacting incorporated into further approaches of [...]

A Computationally Efficient Method for Analytical Calculation of Potentials in Undoped Symmetric DG SOI MOSFET

Cobianu O., Glesner M., Darmstadt University of Technology, DE

In order to build an analytical model of an undoped symmetric DG SOI MOSFET devices, an accurate but rather difficult method was used by S. Malobabic et.al. [2] in their papers that is based on [...]

Adaptive Control for Reducing the Effect of Damping on the Output Signal of Microgyroscopes

Khalilyulin R., Hauck T., Wachutka G., Münich University of Technology, DE

A mixed-level modeling methodology is employed to set up a full system simulation model for microgyroscopes together with the control circuitry in order to investigate the performance of novel adaptive closed-loop control strategies, which allow [...]

Parametric Simulation of MEMS Based on Automatic Differentiation of Finite Element Codes

Kolchuzhin V.A., Mehner J.E., Gessner T., Doetzel W., Chemnitz University of Technology, DE

The key idea of the presented approach, which account for parameter variations in a single finite element run, is to compute not only the governing system matrices of the FE problem but also their partial [...]

The Pulsation Reactor Process – Large Scale Production of Nano-Sized Metal Oxide Powders in a Single Step

Fischer G., Leidolph L., Weitz U., IBU-tec, DE

A pulsed thermal reactor process was developed to produce nano particles on an industrial scale. Different precursors were applied to obtain the desired product properties. The applied techniques (pulsation reactor) are explained and different applications [...]

Material Properties of Polymer Nanoparticle Composites for Micro Optical Applications

Ritzhaupt-Kleissl E., Böhm J., Haußelt J., Hanemann T., Forschungszentrum Karlsruhe, DE

Nanosized ceramics, highly dispersed into polymer matrix materials, are widely being discussed for the modification of polymer properties. For applications in microsystem technology, the modification of the polymers’ optical and mechanical properties is of certain [...]

Chaotic flows in microchannels: A lattice Boltzmann study

Varnik F., Raabe D., Max-Planck Institut fuer Eisenforschung, DE

Lubricant flows are usually assumed to be laminar and the lubricatedmetallic surfaces are anticipated to be perfectly flat and references therein). Both assumptions are incorrectwhen it comes to a detailed analysis. Indeed, metallic surfaces arenever [...]

In vitro testing of the penetration and permeation of nanomaterials on a artificial human skin model

Weimer M., Mertsching H., Brunner H., Fraunhofer Institute of Interfacial Engineering and Biotechnology, DE

We established a tissue engineered 3D human skin model. This interactive 3D-co-cultre consists of living human primary keratinocytes with a well-differentiated stratum corneum and an epidermal layer. The dermal layer is composed of a Type [...]

Qualitative Evaluation of the Response of Human Osteoblast Cells to Nanotopography Surfaces Based on Carbon Nanotubes

Firkowska I., Giannona S., Rojas-Chapana J., Giersig M., Center of Advanced European Studies and Research, DE

The organization of cells within an extracellular matrix is critical to promote appropriate cellular interactions and tissue function in vivo. The ability to design and create a nano-patterning on surfaces provides new capabilities for tissue [...]