Concept

Scalar potential

Publications associées (147)

Properties of the [NiFe]-hydrogenase maturation protein HypD

A mutational screen of amino acid residues of hydrogenase maturation protein HypD from Escherichia coli disclosed that seven conserved cysteine residues located in three different motifs in HypD are essential. Evidence is presented for potential functions ...

2006

Density functional theory study of adsorption and dissociation of HfCl4 and H2O on Ge∕Si(100)-(2×1): Initial stage of atomic layer deposition of HfO2 on SiGe surface

Wei Chen, Min Xu, Jie Ren

We have investigated adsorption and dissociation of water and HfCl4 on Ge/Si(100)-(2x1) surface with density functional theory. The Si-Ge heterodimer and Ge-Ge homodimer are employed to represent the Si1-xGex surface. The activation energy for adsorption o ...

American Institute of Physics2005

Solution versus vapor growth of dipolar layers on activated oxide substrates

Frank Nüesch, Libero Zuppiroli, Michel Carrara

Monolayer adsorption of benzoic acid derivatives on activated oxide surfaces from solution and from the vapor phase are investigated with the view of modifying the work function of a conductive substrate. Para-substituted benzoic acids with a wide range of ...

American Chemical Society2003

Methods and apparatus for patterning a surface

Jeffrey Alan Hubbell

The present invention provides methods and apparatus for locally patterning surfaces. In one such method, an oxidizable thioether is adsorbed onto a conductive surface 10. The surface is then contacted with a fluid medium M. A conducting stamp 12 is then b ...

2003

Ab Initio Molecular Dynamics for Molecules with Variable Numbers of Electrons

Ivano Tavernelli

The ab initio mol. dynamics method is extended to treat exchange of electrons between mols. and a reservoir at fixed chem. potential. The method is based on a rigorously grand-canonical d. functional approach using sep. potential energy surfaces for each o ...

2002

Diffusion, localization, and dephasing of trions and excitons in CdTe quantum wells

Benoît Marie Joseph Deveaud, Jean-Daniel Ganière, Marcia Portella Oberli, Victoria Ciulin

Excitons and trions in a CdTe modulation-doped quantum well are investigated by picosecond three-pulse four-wave mixing experiments as a function of temperature in the low-density regime. We show that trions are mobile for high enough temperatures. The dif ...

2002

Electrochemical oxidation of benzoic acid at boron-doped diamond electrodes

Christos Comninellis, Pierre-Alain Michaud

The electrochem. oxidn. of benzoic acid (BA) was studied on boron-doped diamond electrodes on acid medium by cyclic voltammetry and bulk electrolysis. In the potential region where the supporting electrolyte is stable, reactions occur, resulting in the los ...

2002

Couches auto-assemblées comme interfaces des dispositifs électroluminescents organiques

Michel Carrara

Organic light emitting devices (OLED) are among the most promising future technologies for the manufacture of flat and inexpensive displays. Although OLEDs provide already much higher brightness as compared to liquid crystals devices (LCD), they have a maj ...

EPFL2002

Anodic oxidation of 4-chlorophenoxyacetic acid on synthetic boron-doped diamond electrodes

Christos Comninellis, Pierre-Alain Michaud

The anodic oxidn. of 4-chlorophenoxyacetic acid (CPA) on synthetic B-doped diamond thin film electrodes in acid media was studied, using cyclic voltammetry and bulk electrolysis. The results showed that in the potential region where the supporting electrol ...

2002

Electrochemical oxidation of phenol at boron-doped diamond electrode. Application to electro-organic synthesis and wastewater treatment

Christos Comninellis, Pierre-Alain Michaud, Marco Panizza

The electrochem. behavior of a synthetic B-doped diamond thin film electrode (BDD) was studied in acid media contg. phenol using cyclic voltammetry and bulk electrolysis. In the potential region of H2O stability direct electron transfers can occur on BDD s ...

2002

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