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Publications associées (320)

Large-scale fabrication of titanium-rich perovskite PZT submicro/nano wires and their electromechanical properties

Jian Wang, Nava Setter, Silviu Cosmin Sandu

We report a 2-step approach to prepare tetragonal perovskite PbZr0.1Ti0.9O3 submicro/nano wires in gram scale and with over 95% wire content. Non-perovskite precursor wires were first fabricated by hydrothermal processing. A subsequent annealing in a PbO a ...

2009

Photocurrent and photoconductance properties of a GaAs nanowire

Anna Fontcuberta i Morral

We report on photocurrent and photoconductance processes in a freely suspended p-doped single GaAs nanowire. The nanowires are grown by molecular beam epitaxy, and they are electrically contacted by a focused ion beam deposition technique. The observed pho ...

American Institute of Physics2009

Electrical modeling of the cell-electrode interface for recording neural activity from high-density microelectrode arrays

Alexandre Schmid, Yusuf Leblebici, Neil Joye

Accurate electrical models are needed to support the design of modern microelectrode arrays. The point-contact model is presented thoroughly, and an area-contact model is analytically derived in order to model the electrical characteristics of the cell-ele ...

2009

Sustainability through Light: A Contemporary Approach to Articulate Design and Technology

Marilyne Andersen

This paper describes the concept, design and development process of an interactive and immersive exhibition on state-of-the-art façade technologies for advanced daylighting control. Its aim is to propose an effective, informative and interactive experience ...

2009

WC/a-C nanocomposite thin films: Optical and electrical properties

Rosendo Sanjines

WC/amorphous carbon (a-C) thin films were deposited by dual magnetron sputtering from individual WC and graphite targets. The influence of film composition and microstructure on the optical and electrical properties was investigated. As evidenced by x-ray ...

2009

Microfluidic connectors by ultrasonic welding

Nico de Rooij

We attempted ultrasonic welding as a technique for the bonding of connectors to microfluidic devices. Different schemes of the method were explored based on different designs of the connectors to achieve a strong, minimal dead-volume connection. Results sh ...

2009

Spatially Resolved Potential Distribution in Carbon Nanotube Cross-Junction Devices

Klaus Kern, Marko Burghard, Kannan Balasubramanian, Eduardo Jian Hua Lee

Crossed-nanotube junctions, the basic constituents of carbon nanotube networks, are investigated by scanning photocurrent microscopy. The location of the predominant electrostatic potential drop, at the electrical contacts or at the junction, is found to b ...

2009

in vivo Electrical Impedance Spectroscopy of Tissue Reaction to Microelectrode Arrays

Philippe Renaud, Arnaud Bertsch, André Mercanzini

The goal of this experiment was to determine the electrical properties of the tissue reaction to implanted microelectrode arrays. We describe a new method of analyzing electrical impedance spectroscopy data to determine the complex impedance of the tissue ...

2009

Model-based optical and electrical characterization of dye-sensitized solar cells

Guido Rothenberger, Sophie Wenger, Matthias Schmid

We present an experimentally validated coupled optical and electrical model for the dye-sensitized solar cell. The light absorption and subsequent charge generation in the photoactive layer is calculated accurately using coherent and incoherent optics. The ...

2009

Quadratic backward propagation of variance for nonlinear statistical circuit modeling

Ivica Stevanovic

Accurate statistical modeling and simulation are keys to ensure that integrated circuits (ICs) meet specifications over the stochastic variations inherent in IC manufacturing technologies. Backward propagation of variance (BPV) is a general technique for s ...

2009

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