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Publications associées (292)

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

Semiconductor based high resistance

Yusuf Leblebici

The field of invention is in the area of MOS integrated circuits operating with very low currents in the weak inversion region or sub threshold. The method aims at providing linear resistor with a value in the multi-mega ohm range. In order to produce Sili ...

2008

Trapping Individual Carbon Nanotubes

Mihai Adrian Ionescu, Anupama Arun

A technique to deterministically manipulate individual Carbon Nanotubes (CNT) has been the brick-wall for the boom of CNT based devices. Here we demonstrate dielectrophoresis as an efficient technique to trap individual Single Walled Carbon Nanotubes (SWCN ...

2008

Contact and edge effects in graphene devices

Klaus Kern, Marko Burghard, Kannan Balasubramanian, Ralf Thomas Weitz, Eduardo Jian Hua Lee

Electrical transport studies on graphene have been focused mainly on the linear dispersion region around the Fermi level(1,2) and, in particular, on the effects associated with the quasiparticles in graphene behaving as relativistic particles known as Dira ...

2008

An Electrical Model of the Cell-Electrode Interface for High-density Microelectrode Arrays

Alexandre Schmid, Yusuf Leblebici, Neil Joye

A point-contact model is presented, and an areacontact model has been analytically derived in order to model the electrical characteristic of the cell-electrode interface of high-density neuron cultures. The area-contact model is presented as a model more ...

IEEE2008

Technology and performance of InAlN/AlN/GaN HEMTs with gate insulation and current collapse suppression using ZrO2 or HfO2

Nicolas Grandjean, Jean-François Carlin, Eric Feltin, Marcus Gonschorek

We present the technology and performance of InAlN/AlN/GaN MOS HEMTs with gate insulation and surface passivation using ZrO2 or HfO2. About 10-nm-thick high-k dielectrics were deposited by MOCVD before the ohmic contact processing. Plasma pretreatment allo ...

2008

Ageing of anode-supported solid oxide fuel cell stacks including thermal cycling, and expansion behaviour of MgO-NiO anodes

Jan Van Herle, Stefan Diethelm

This paper reports on medium term tests of anode-supported five-cell short stacks, as well as on some separate anode development. Two stacks were operated under steady-state conditions: one with unprotected metal interconnects, H-2 fuel and 0.35 A cm(-2) ( ...

Elsevier2008

Ageing of anode-supported solid oxide fuel cell stacks including thermal cycling, and expansion behaviour of MgO–NiO anodes

Jan Van Herle, Stefan Diethelm

2008

LTCC active oxygen getter module for hermetic packaging applications

Peter Ryser, Thomas Maeder, Yannick Sébastien Fournier, Frank Seigneur, Timothée Haller

LTCC and thick-film technologies constitute excellent platforms for hermetic and controlled-atmosphere packaging, for applications in MEMS, space, micro/nanofabrication and biological fields. This work presents an active oxygen getter module, based on an i ...

IMAPS2008

Unsaturated water flow across soil aggregate contacts

Unsaturated water flow through soil aggregates is controlled by the contacts between aggregates. The contacts are highly conductive when wet and become bottle-necks for flow when drained. We postulate that the hydraulic conductivity of the contacts is in f ...

2008

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