Concept

Auger effect

Related publications (32)

Aluminum catalyzed growth of silicon nanowires: Al atom location and the influence of silicon precursor pressure on the morphology

We study the growth of silicon nanowires (SiNWs) by chemical vapor deposition (CVD) with aluminum as catalyst. We show that for a growth temperature of 600 °C, the silicon precursor partial pressure (SiH 4 in this study) is a key parameter for controlling ...

2012

Correlating long-lived photogenerated hole populations with photocurrent densities in hematite water oxidation photoanodes

Michael Graetzel, Kevin Sivula

Photogenerated charge carrier dynamics are investigated as a function of applied bias in a variety of different hematite photoanodes for solar water oxidation. Transient absorption spectroscopy is used to probe the photogenerated holes, while transient pho ...

2012

Charge stabilization by reaction center protein immobilized to carbon nanotubes functionalized by amine groups and poly(3-thiophene acetic acid) conducting polymer

László Forró, Arnaud Magrez, Endre Horvath, Klara Hernadi

A large number of studies have indicated recently that photosynthetic reaction center proteins (RC) bind successfully to nanostructures and their functional activity is largely retained. The major goal of current research is to find the most efficient syst ...

Wiley-V C H Verlag Gmbh2012

Influence of Halogen Atoms on a Homologous Series of Bis-Cyclometalated Iridium(III) Complexes

Mohammad Khaja Nazeeruddin, Rosario Scopelliti, Ursula Röthlisberger, Ivano Tavernelli, Basile Curchod, Frédéric Steimer

A series of homologous bis-cyclometalated iridium(III) complexes Ir(2,4-di-X-phenyl-pyridine)2(picolinate) (X = H, F, Cl, Br) HIrPic, FIrPic, ClIrPic, and BrIrPic has been synthesized and characterized by NMR, X-ray crystallography, UV–vis absorption and e ...

2012

Study of the Optical UV-Visible Electron Induced Luminescence of Small Size Selected Metal Clusters in Rare Gas Solids

Alexandre Rydlo

The optical properties of small size selected metal clusters have been studied by fluorescence spectroscopy. Cun (n = 1-5, 8), Agn (n = 1-5, 8, 9, 20), Aun (n = 1-5, 8) and Nin (n = 1-3) clusters embedded in condensed neon are photoionized by VUV photons i ...

EPFL2010

Quantum calculations on the acid catalyzed rearrangements of norborn-5-en-2-one, 7-oxanorborn-5-en-2-one and 7-azanorborn-5-en-2-one - The electron-releasing effect of homoconjugated carbonyl group

Pierre Vogel, Samuele Giani

Protonation of norbom-5-en-2-one gives 6-oxo-2-norbomyl cation (2) as most stable C7H9O+ cation. Quantum calculations at B3LYP/6-31G(d) level (gas phase, 1 atm, 25 degrees C) predict a C-s-structure for 2 that can be represented as an intramolecular pi-com ...

2008

Spectroscopy and kinetic studies of electron-hole recombination in CdSe nanoparticles

Awos Al Salman

This thesis presents an experimental study of the energy and time-resolved optical response of chemically prepared CdSe nanoparticles with different sizes, shapes (dots, rods, and tetrapods), and lattice structures (wurtzite and zinc blende). The first par ...

EPFL2007

Pénétration intergranulaire fragilisante du cuivre par le bismuth liquide : identification de la cinétique et du mécanisme de type diffusionnel entre 300 et 600°C

Vincent Laporte

Cette thèse s’est déroulée dans le cadre d’une réflexion sur la fragilisation par les métaux liquides, un des phénomènes pouvant limiter la durée de vie de la cible de spallation dans les réacteurs hybrides qui représentent une des solutions possibles pour ...

Ecole Nationale Supérieure des Mines de Saint-Etienne2005

Electronic structure of electrochemically Li-inserted TiO2 studied with synchrotron radiation electron spectroscopies

Ulf Anders Hagfeldt

The electronic properties were studied of TiO2 and electrochem. Li-inserted TiO2 using synchrotron radiation photoelectron spectroscopy and x-ray absorption spectroscopy (XAS) in conjunction with resonant photoelectron spectroscopy. Core level (Ti 2p) and ...

2003

Hot phonons and Auger related carrier heating in semiconductor optical amplifiers

Benoît Marie Joseph Deveaud, Marc-André Dupertuis, Daniel Marti, Lars Kappei

We have directly measured the carrier temperature in semiconductor optical amplifiers (SOAs) via spontaneous emission and we demonstrate an unexpectedly high carrier temperature. The direct correlation of the temperature increase with the carrier density s ...

2002

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