Publication

Numerical modelling of light emission and propagation in (organic) LEDs with the Green's tensor

Publications associées (56)

Multi-frequency high-pressure electron spin resonance study of low dimensonal organic conductors

Electronic and magnetic properties of quasi-one dimensional ormore widely low-dimensional systems aswell as their related correlated electron phenomena have been at the very frontier of condensed matter physics for quite some time. The reduced dimensionali ...

EPFL2008

Linear dichroism of CdSe nanodots: Large anisotropy of the band-gap absorption induced by ground-state dipole moments

Majed Chergui, Frank van Mourik

The authors measured the elec. field induced linear dichroism for a wide range of sizes of CdSe nanocrystals. Large ground-state dipole moments were obsd., esp. for the smallest crystals. In these, the authors found a very large anisotropy of the absorptio ...

2008

Light-emitting material.

Michael Graetzel, Mohammad Khaja Nazeeruddin

This invention pertains to light emitting materials comprising novel ortho-metalated transition metal complexes [C^N] 2 ML comprising two orthometalated ligands having imidazole moieties and an ancillary ligand of ²-diketonate type. It has been surprisingl ...

2008

Ultralong-range radiative excitation transfer between quantum dots in a planar microcavity

Vincenzo Savona, Gaetano Parascandolo, Guillaume Jean Tarel

We study the system of two quantum dots lying on the central plane of a planar semiconductor microcavity. By solving the full Maxwell problem, we demonstrate that the rate of resonant excitation transfer between the two dots decays as d(-12) as a function ...

2008

Light-emitting material.

Michael Graetzel, Mohammad Khaja Nazeeruddin, Yongjoo Kim

Abstract of WO2007042474 This invention pertains to light emitting materials comprising novel ortho-metalated transition metal complexes [C^N]2ML, comprising chelate monoionic ligands (L), also called ancillary ligands. It has been surprisingly found that ...

2007

Approches numériques du transport de charges dans les semiconducteurs organiques

Hocine Houili

Using plastics or dyes like molecular semiconductors to make optoelectronic devices at low cost is a project in industry that is of great interest to the "Information Community" of this beginning of the 21st century. Some applications of this technology ha ...

EPFL2006

An antenna-theory approach for modeling inclined lightning return stroke channels

In this paper, we investigate lightning return stroke electromagnetic fields and induced voltages on nearby overhead lines associated with an inclined lightning channel. The study is based on the Antenna Theory (AT) model, which is appropriately extended t ...

2006

Strong electric field and nonuniformity effects in GaN/AlN quantum dots revealed by high pressure studies

Nicolas Grandjean

The photoluminescence (PL) from GaN quantum dots (QDs) embedded in AlN has been investigated under hydrostatic pressure. The measured pressure coefficient of emitted light energy [dE(E)/dP] shows a negative value, in contrast with the positive pressure coe ...

2006

Dipole moments of HDO in highly excited vibrational states measured by Stark induced photofragment quantum beat spectroscopy

Thomas Rizzo, Patrice Theulé

We report here a measurement of electric dipole moments in highly vibrationally excited HDO molecules. We use photofragment yield detected quantum beat spectroscopy to determine electric field induced splittings of the J=1 rotational levels of HDO excited ...

2005

The proton nuclear magnetic shielding tensors in biphenyl: Experiment and theory

Line-narrowing multiple pulse techniques are applied to a spherical sample crystal of biphenyl. The 10 different proton shielding tensors in this compd. are detd. The accuracy level for the tensor components is 0.3 ppm. The assignment of the measured tenso ...

2005

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