Publications related to Scrutinizing thermally stimulated current transients originating from trapped charges in organic semiconductors: A drift-diffusion study

The nature and role of advection in advection-diffusion equations used for modelling bed load transport

The advection-diffusion equation arises quite often in the context of sediment transport, e.g., for describing time and space variations in the particle activity (the solid volume of particles in motion per unit streambed area). Stochastic models can also ...

2016

Dissociation of charge transfer states and carriers separation in bilayer organic solar cells - A time-resolved electroabsorption spectroscopy study

Jacques-Edouard Moser, Roland Hany, Jelissa Risse

Ultrafast optical probing of the electric field by means of Stark effect in planar heterojunction cyanine dye / fullerene organic solar cells enables to directly monitor the dynamics of free electron formation during the dissociation of interfacial charge ...

Amer Chemical Soc2015

Dynamics of particles with anisotropic mass depending on time and position

Tudor Ratiu

Representations of solutions of equations describing the diffusion and quantum dynamics of particles in a Riemannian manifold are discussed under the assumption that the mass of particles is anisotropic and depends on both time and position. These equation ...

Springer Verlag2015

Toward the correspondence between Q-clouds and sphalerons

Andrey Shkerin

Non-linear classical equations of motion may admit degenerate solutions at fixed charges. Whereas the solutions with lower energies are classically stable, those with larger energies are unstable and are referred to as Q-clouds. We consider a theory in whi ...

Elsevier2015

Electron and Hole Mobilities in Single-Layer WSe2

Andras Kis, Adrien Victor Allain

Single-layer transition metal dichalcogenide WSe2 has recently attracted a lot of attention because it is a 2D semiconductor with a direct band gap. Due to low doping levels, it is intrinsic and shows ambipolar transport. This opens up the possibility to r ...

Amer Chemical Soc2014

Biexcitonic molecules survive excitons at the Mott transition

Nicolas Grandjean, Jean-François Carlin, Benoît Marie Joseph Deveaud, Raphaël Butté, Eric Feltin, Jacques Levrat, Jean-Daniel Ganière, Gwénolé Jean Jacopin, Georg Rossbach, Mehran Shahmohammadi

When the carrier density is increased in a semiconductor, according to the predictions of Sir Nevil Mott, a transition should occur from an insulating state consisting of a gas of excitons to a conductive electron-hole plasma. This crossover, usually refer ...

Nature Publishing Group2014

Multiphysics simulation of corona discharge induced ionic wind

Ivica Stevanovic, Nicola Parolini, Francesco Agostini

Ionic wind devices or electrostatic fluid accelerators are becoming of increasing interest as tools for thermal management, in particular for semiconductor devices. In this work, we present a numerical model for predicting the performance of such devices; ...

American Institute of Physics2013

Macroscopic Theory of Charged Domain Walls in Ferroelectrics

Maxim Gureev

This thesis consists of a theoretical analysis of charged domain walls in ferroelectrics based on Landau theory and the theory of semiconductors. First, the internal structure of a 180-degree charged domain wall is considered. It is shown that different re ...

EPFL2012

Linear and Time-Resolved THz Spectroscopy of Photonic and Charge Transporting Systems

Jan Cornelius Brauer

Photo-induced charge separation and charge transport are fundamental processes in many energy conversion techniques, where light is converted into chemical energy (PEC), into electrical energy (solar cells) or in the opposite sense if electrical energy is ...

EPFL2012

Global Solutions to a Non-Local Diffusion Equation with Quadratic Non-Linearity

Joachim Krieger

In this paper we prove the global in time well-posedness of the following non-local diffusion equation with

\alpha\, \varepsilon [0, 2/3)

:

\partial_tu=\{(-\Delta)^{-1}u\}\Delta u+\alpha u^2, \,\, u(t=0)=u_0

. The initial condition

u_0

is positive, rad ...

2012

Scrutinizing thermally stimulated current transients originating from trapped charges in organic semiconductors: A drift-diffusion study

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The nature and role of advection in advection-diffusion equations used for modelling bed load transport

Dissociation of charge transfer states and carriers separation in bilayer organic solar cells - A time-resolved electroabsorption spectroscopy study

Dynamics of particles with anisotropic mass depending on time and position

Toward the correspondence between Q-clouds and sphalerons

Electron and Hole Mobilities in Single-Layer WSe2

Biexcitonic molecules survive excitons at the Mott transition

Multiphysics simulation of corona discharge induced ionic wind

Macroscopic Theory of Charged Domain Walls in Ferroelectrics

Linear and Time-Resolved THz Spectroscopy of Photonic and Charge Transporting Systems

Global Solutions to a Non-Local Diffusion Equation with Quadratic Non-Linearity

Macroscopic Theory of Charged Domain Walls in Ferroelectrics

Electron and Hole Mobilities in Single-Layer WSe2

Linear and Time-Resolved THz Spectroscopy of Photonic and Charge Transporting Systems

Global Solutions to a Non-Local Diffusion Equation with Quadratic Non-Linearity

Dissociation of charge transfer states and carriers separation in bilayer organic solar cells - A time-resolved electroabsorption spectroscopy study

Toward the correspondence between Q-clouds and sphalerons

Biexcitonic molecules survive excitons at the Mott transition

Dynamics of particles with anisotropic mass depending on time and position

Multiphysics simulation of corona discharge induced ionic wind

The nature and role of advection in advection-diffusion equations used for modelling bed load transport