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Publications associées (12)

Comparative studies on rigid π linker-based organic dyes: Structure-property relationships and photovoltaic performance

Ho Ling Li, Ulf Anders Hagfeldt, Yan Hao

© 2014 Wiley-VCH Verlag GmbH & Co. KGaA. A series of six structurally correlated donor-π bridge-acceptor organic dyes were designed, synthesized, and applied as sensitizers in dye-sensitized solar cells. Using the most widely studied donor (triarylamine) a ...

2014

Measured binding coefficients for iodine and ruthenium dyes; implications for recombination in dye sensitised solar cells

Shaik Mohammed Zakeeruddin, Robin Humphry-Baker, Filippo de Angelis, Xiong Li

We have measured the binding coefficients of iodine to three dyes used in Dye Sensitised Solar Cells (DSSCs). Binding coefficients are quantified via the effect of iodine binding on the UV-vis spectrum of the dye. From iodine titration curves of dye sensit ...

Royal Society of Chemistry2012

Energy and Hole Transfer between Dyes Attached to Titania in Cosensitized Dye-Sensitized Solar Cells

Shaik Mohammed Zakeeruddin, Jacques-Edouard Moser, Robin Humphry-Baker, Peng Wang, Thomas Moehl

Cosensitization of broadly absorbing ruthenium metal complex dyes with highly absorptive near-infrared (NIR) organic dyes is a clear pathway to increase near-infrared light harvesting in liquid- based dye-sensitized solar cells (DSCs). In cosensitized DSCs ...

2011

Pattern-Based Sensing of Short Oligodeoxynucleotides with Palladium–Dye Complexes

Kay Severin, Jie Gao, Anton Granzhan

The colorimetric response of a sensor array composed of palladium–dye complexes can be used to identify different hexadeoxynucleotides and to distinguish mixtures of sequence-isomeric hexadeoxynucleotides. ...

Royal Society of Chemistry2010

Pattern-based sensing with simple metal–dye complexes

Kay Severin

Different strategies for the creation of optical sensors with metal–dye complexes are discussed. The focus is on sensors, which are used in conjunction with pattern recognition protocols. It is shown that remarkably powerful sensors can be obtained by comb ...

2010

Dynamics of Electron Transfer Processes at the Surface of Dye-Sensitized Mesoporous Semiconductor Films

Joël Teuscher

Electron transfer reactions taking place at the surface of dye-sensitized semiconductors are key processes in dye-sensitized solar cells (DSSCs). After light absorption, the excited state of a dye injects an electron into a wide-bandgap semiconductor, usua ...

EPFL2010

Strategies to Optimizing Dye-Sensitized Solar Cells

Sophie Wenger

Dye-sensitized solar cells (DSCs) constitute a novel class of hybrid organic-inorganic solar cells. At the heart of the device is a mesoporous film of titanium dioxide (TiO2) nanoparticles, which are coated with a monolayer of dye sensitive to the visible ...

EPFL2010

Sensing with Dynamic Combinatorial Libraries of Metal-Dye Complexes: The Advantage of Time-Resolved Measurements

Kay Severin, Friederike Gundula Marie Zaubitzer

A dynamic combinatorial library of metal–dye complexes was obtained by reacting aqueous solutions of the dyes Methyl Calcein Blue, Arsenazo I, and Xylenol Orange with CuCl2 and NiCl2. The mixture gave a characteristic UV-Vis response upon addition of the p ...

2009

Enhancing the open-circuit voltage of dye-sensitized solar cells

In Feburary 2008, the oil price easily exceeded $ 100 per barrel due to the weak US dollar and the imbalance between the increasing demands and deficient supplies. People are paying more and more attention to seek for alternative energy sources that would ...

EPFL2008

Model for a-Si:H/c-Si interface recombination based on the amphoteric nature of silicon dangling bonds

Christophe Ballif

The performance of many silicon devices is limited by electronic recombination losses at the crystalline silicon (c-Si) surface. A proper surface passivation scheme is needed to allow minimizing these losses. The surface passivation properties of amorphous ...

2007

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