Ru(4,4-dicarboxylic acid-2,2'-bipyridine) (4,4'-bis(2-(4-(1,4,7,10-tetraoxyundecyl)phenyl)ethenyl)-2,2'-bipyridine) (NCS)(2), a new high molar extinction coefficient ion-coordinating ruthenium sensitizer was synthesized and characterized using H-1 NMR, Fou ...

Wiley-Blackwell2007

Dye Dependent Regeneration Dynamics in Dye Sensitized Nanocrystalline Solar Cells: Evidence for the Formation of a Ruthenium Bipyridyl Cation/Iodide Intermediate

Michael Graetzel, Mohammad Khaja Nazeeruddin

We report a transient absorption study of the kinetics of re-reduction of ruthenium bipyridyl dye cations adsorbed to nanocrystalline TiO2 films by iodide ions, employing a series of RuII(dcbpy)2X dyes, where dcpby ) 4,4′-dicarboxy-2,2′-bipyridyl and X ) ( ...

2007

High Effiiciency and Stable Mesoscopic Dye-Sensitized Solar Cells based on a High Molar Extinction Cofficient Ru-sensitizer and non-volatile electrolyte

Michael Graetzel, Jacques-Edouard Moser, Shaik Mohammed Zakeeruddin, Carole Graetzel, Robin Humphry-Baker, Nicholas Evans

Wiley2007

Electro luminescent metal complexes

Michael Graetzel, Mohammad Khaja Nazeeruddin

This invention relates to metal complexes, and the use of such complexes as an electro luminescent material. It also relates to a light-emitting device comprising such metal complexes, and to a method for manufacturing such a light-emitting ...

2007

Fabrication of screen-printing pastes from TiO2 powders for dye-sensitised solar cells

Pascal Comte, Michael Graetzel, Paul Liska, Mohammad Khaja Nazeeruddin, Péter Kalman Péchy, Peter Chen

2007

Molecular Wiring of Insulators: Charging and Discharging Electrode Materials for High-Energy Lithium-Ion Batteries by Molecular Charge Transport Layers

Michael Graetzel, Shaik Mohammed Zakeeruddin, Nicholas Evans

Self-assembled monolayers (SAMs) of redox-active molecules on mesoscopic substrates exhibit two-dimensional conductivity if their surface coverage exceeds the percolation threshold. Here, we show for the first time that such molecular charge transport laye ...

2007

Co-sensitization of Organic Dyes for Efficient Ionic Liquid Electrolyte-based Dye-Sensitized Solar Cell

Pascal Comte, Michael Graetzel, Mohammad Khaja Nazeeruddin, Frank Nüesch, Shaik Mohammed Zakeeruddin, Sun Hee Kim

2007

Novel Oxygen Selective Complexes for Optical Oxygen Sensing

Michael Graetzel, Mohammad Khaja Nazeeruddin

Novel optical sensing films for oxygen based on highly luminescent iridium (III) and ruthenium (II) complexes have been developed. These demonstrate excellent long-term photostability (several months) when incorporated into polystyrene membranes. The influ ...

2007

Correlation between Photovoltaic Performance and Impedance Spectroscopy of Dye-Sensitized Solar Cells Based on Ionic Liquids

Michael Graetzel, Shaik Mohammed Zakeeruddin

2007

Ionic liquid electrolyte

Michael Graetzel, Shaik Mohammed Zakeeruddin, Peng Wang

The present invention relates to electrolytes comprising tetracyanoborate and an organic cation as components of electrolytes in electrochemical and/or optoelectronic devices, in particular solar cells. This ionic liquid has low viscosity and can be used a ...

2007

High energy lithium batteries by molecular wiring and targeting approaches

Michael Graetzel, Shaik Mohammed Zakeeruddin, Péter Kalman Péchy, Nicholas Evans, Qian Wang

2007

Light-emitting material

Michael Graetzel, Mohammad Khaja Nazeeruddin, Yongjoo Kim

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 when the ancillary ligand ...

2007

Nanocrystalline Dye-sensitized Solar Cells Having Maximum Performance

Michael Graetzel, Paul Liska, Ravindranathan Thampi, Shaik Mohammed Zakeeruddin

This paper presents an overview of the research carried out by a European consortium with the aim to develop and test new and improved ways to realise dye-sensitized solar cells (DSC) with enhanced efficiencies and stabilities. Several new areas have been ...

2007

The Electronic Role of the TiO2 Light-Scattering Layer in Dye-Sensitized Solar Cells

Pascal Comte, Michael Graetzel, Paul Liska, Mohammad Khaja Nazeeruddin, Shaik Mohammed Zakeeruddin, Robin Humphry-Baker, Péter Kalman Péchy, Raphaël Charvet

2007

Enhancement of Electrochemical Activity of LiFePO4 (olivine) by amphiphilic Ru-bipyridine complex anchored to a Carbon nanotube

Michael Graetzel, Ladislav Kavan

2007

Influence of the Sensitizer Adsorption Mode on the Open-Circuit Potential of Dye-Sensitized Solar Cells

Michael Graetzel, Mohammad Khaja Nazeeruddin, Filippo de Angelis

American Chemical Society (ACS)2007

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