Concept

Effet photoélectrique

Publications associées (247)

Photo-induced electron transfer study of D-π-A sensitizers with different type of anchoring groups for dye-sensitized solar cells

Xiaoqing Jiang, Ulf Anders Hagfeldt, Yan Hao

A new D-π-A org. dye HY102 with a lateral anchoring group and two ref. dyes HY102-1 (using cyanoacrylic acid as an electron acceptor and the anchoring group) and HY102-2 (contg. both cyanoacrylic acid and lateral carboxylic acid) have been synthesized. The ...

2012

Ortho-II band folding in YBa2Cu3O7-delta films revealed by angle-resolved photoemission

Joël Mesot, Martin Mansson, Elia Razzoli

We present an angle-resolved photoelectron spectroscopy study of YBa2Cu3O7-delta films in situ grown by pulsed laser deposition. We have successfully produced underdoped surfaces with ordered oxygen vacancies within the CuO chains resulting in a clear orth ...

2011

Illuminating the dark corridor in graphene: Polarization dependence of angle-resolved photoemission spectroscopy on graphene

Klaus Kern, Isabella Gierz

We have used s- and p-polarized synchrotron radiation to image the electronic structure of epitaxial graphene near the (K) over bar point by angle-resolved photoemission spectroscopy (ARPES). Part of the experimental Fermi surface is suppressed due to the ...

2011

Scintillation Particle Detectors Based on Plastic Optical Fibres and Microfluidics

Alessandro Mapelli

This thesis presents the design, development, and experimental validation of two types of scintillation particle detectors with high spatial resolution. The first one is based on the well established scintillating fibre technology. It will complement the A ...

EPFL2011

Photoelectron properties of DNA and RNA bases from many-body perturbation theory

Nicola Marzari

The photoelectron properties of DNA and RNA bases are studied using many-body perturbation theory within the GW approximation, together with a recently developed Lanczos-chain approach. Calculated vertical ionization potentials, electron affinities, and to ...

2011

Organic dyes incorporating low-band-gap chromophores based on pi-extended benzothiadiazole for dye-sensitized solar cells

Mohammad Khaja Nazeeruddin, Filippo de Angelis

A series of new it-conjugated organic dyes (HKK-BTZ1, HKK-BTZ2, HKK-BTZ3 and HKK-BTZ4), comprising triphenylamine (TPA) moieties as the electron donor and benzothiadiazole moieties as the electron acceptor/anchoring groups, was synthesized for the use in d ...

Elsevier2011

Panchromatic ruthenium sensitizer based on electron-rich heteroarylvinylene pi-conjugated quaterpyridine for dye-sensitized solar cells

Michael Graetzel, Mohammad Khaja Nazeeruddin, Filippo de Angelis

The first example of a heteroarylvinylene pi-conjugated quaterpyridine Ru(II) sensitizer (N1044) was synthesized and used in dye-sensitized solar cells; the dye has an effective panchromatic absorption band, covering the entire visible spectrum up to the N ...

Royal Society of Chemistry2011

"Click-chemistry" approach in the design of 1,2,3-triazolyl-pyridine ligands and their Ru(II)-complexes for dye-sensitized solar cells

Michael Graetzel, Shaik Mohammed Zakeeruddin, Soo-Jin Moon, Nuttapol Pootrakulchote, Amaresh Mishra

The synthesis of new 1,2,3-triazolyl-pyridine ligands via "click-chemistry" and their corresponding Ru(L)(2,2'-bipyridyl-4,4'-dicarboxylic acid)(NCS)(2) complexes (L = 1,2,3-triazolyl-pyridine) are presented. The complexes have been photophysically and ele ...

Royal Society of Chemistry2011

Probing the exciton condensate phase in 1T-TiSe2 with photoemission

Helmuth Berger, Philipp Aebi

We present recent results obtained using angle-resolved photoemission spectroscopy performed on 1T-TiSe2. Emphasis is put on the peculiarity of the bandstructure of TiSe2 compared to other transition metal dichalcogenides, which suggests that this system i ...

2010

High-resolution soft X-ray beamline ADRESS at the Swiss Light Source for resonant inelastic X-ray scattering and angle-resolved photoelectron spectroscopies

Marco Grioni, Thorsten Schmitt, Xiao Wang

The concepts and technical realisation of the high-resolution soft X-ray beamline ADRESS operating in the energy range from 300 to 1600 eV and intended for resonant inelastic X-ray scattering (R1XS) and angle-resolved photoelectron spectioscopy (ARPES) are ...

International Union of Crystallography2010

Graph Chatbot

Chattez avec Graph Search

Posez n’importe quelle question sur les cours, conférences, exercices, recherches, actualités, etc. de l’EPFL ou essayez les exemples de questions ci-dessous.

AVERTISSEMENT : Le chatbot Graph n'est pas programmé pour fournir des réponses explicites ou catégoriques à vos questions. Il transforme plutôt vos questions en demandes API qui sont distribuées aux différents services informatiques officiellement administrés par l'EPFL. Son but est uniquement de collecter et de recommander des références pertinentes à des contenus que vous pouvez explorer pour vous aider à répondre à vos questions.

Connectez-vous pour utiliser Chat avec Graph Search