Concept

Permittivité du vide

Publications associées (131)

A facile synthetic strategy to polysiloxanes containing sulfonyl side groups with high dielectric permittivity

The chemical modification of polymers with lateral polar groups increases their dielectric permittivity above the glass transition temperature, making them attractive materials for dielectric elastomer actuators. Despite the large dipole moment of the sulf ...

Royal Society of Chemistry2017

Understanding Digestive Ripening of Ligand-Stabilized, Charged Metal Nanoparticles

Hubert Girault, Pekka Eero Peljo

Most syntheses of thiolate-protected metal nanoparticles (NPs) include a thermochemical step in which the as-prepared, polydisperse NPs are transformed to a narrower size distribution in a poorly understood process known as digestive ripening (DR). Previou ...

American Chemical Society2017

High, Anisotropic, and Substrate-Independent Mobility in Polymer Field-Effect Transistors Based on Preassembled Semiconducting Nanofibrils

Laura Ferlauto, Marc-Antoine Stoeckel

Achieving nanoscale control over the crystalline structure and morphology of electroactive polymer films and the possibility to transfer them onto any solid substrate are important tasks for the fabrication of highperformance organic/polymeric field-effect ...

Amer Chemical Soc2017

Soft-Sphere Continuum Solvation in Electronic-Structure Calculations

Nicola Marzari, Oliviero Andreussi

We present an implicit solvation approach where the interface-between the quantum-mechanical solute and the surrounding environment is, described by a fully continuous permittivity built up with atomic-centered "soft" spheres. This approach combines many o ...

Amer Chemical Soc2017

Frequency stability of PZE actuated suspended micro-channel resonators

Annalisa De Pastina

We show the fabrication and characterization of a new generation of suspended microchannel resonators (SMRs) with integrated piezoelectric (PZE) actuation. We study resonance frequency, quality factor and frequency stability of singly-clamped hollow device ...

2017

Identification of microscopic domain wall motion from temperature dependence of nonlinear dielectric response

Tomas Sluka, Pavel Mokry

It is known that the permittivity of ferroelectric polydomain films and single crystals in weak electric fields is strongly enhanced by the reversible movement of pinned domain walls. Two mechanisms of the movement exist: first, the bending of free segment ...

Amer Inst Physics2017

A strategy for an accurate estimation of the basal permittivity in the Martian North Polar Layered Deposits

This paper deals with the investigation of the Mars subsurface by means of data collected by the Mars Advanced Radar for Subsurface and Ionosphere Sounding working at few megahertz frequencies. A data processing strategy, which combines a simple inversion ...

Wiley2017

Intrinsic and interfacial kinetics of perovskite solar cells under photo and bias-induced degradation and recovery

Shaik Mohammed Zakeeruddin, Pankaj Kumar Yadav, Daniel Prochowicz, Essa Awadh R Alharbi

Perovskite solar cells (PSCs) have emerged as a potential candidate for high efficiency low-cost photovoltaic technology. However, the intrinsic and interfacial responses of PSCs under photo and bias-induced degradation and recovery have not been clearly u ...

Royal Soc Chemistry2017

Elastomers with tunable dielectric and electromechanical properties

Frank Nüesch

Novel electroresponsive silicone elastomers modified with nitrile groups are presented, whose dielectric permittivity (epsilon') is tuned from epsilon' = 4.3 to epsilon' = 17.4. They are prepared in a one-step process starting from a high molecular weight ...

Royal Soc Chemistry2016

The renormalon diagram in gauge theories on R-3 x S-1

We analyze the renormalon diagram of gauge theories on . In particular, we perform exact one loop calculations for the vacuum polarization in QCD with adjoint matter and observe that all infrared logarithms, as functions of the external momentum, cancel be ...

Springer2015

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