Concept

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Publications associées (117)

2,2 -Bipyridine ligand, sensitizing dye and dye sensitized solar cell

A dye sensitized solar cell, comprising a heteroleptic polypyridil complex of Ru, Os or Fe. The donating ligand has an extended conjugated À-system increasing the light absorbance and keeing the LUMO energy level higher than that of the anchoring ligand. A ...

(Ecole Polytechnique Federale De Lausanne (EPFI), Switz.).2006

A novel organic chromophore for dye-sensitized nanostructured solar cells

Ulf Anders Hagfeldt

A novel and efficient polyene-diphenylaniline dye for dye-sensitized solar cells was synthesized. The dye has a short synthesis route and is readily adsorbed on TiO2 under a variety of dye-bath conditions. The overall solar-to-energy conversion efficiency ...

2006

Mechanically tunable optofluidic distributed feedback dye laser

Demetri Psaltis

A continuously tunable optofluidic distributed feedback (DFB) dye laser was demonstrated on a monolithic replica molded poly(dimethylsiloxane) (PDMS) chip. The optical feedback was provided by a phase-shifted higher order Bragg grating embedded in the liqu ...

2006

Dynamic Combinatorial Libraries of Dye-Complexes as Sensors

Kay Severin, Andrey Buryak

A simple soln.: Simply dissolving three com. available dyes and two metal salts in a buffer is sufficient to create a sensor which allows the identification of dipeptides with high selectivity by using UV/Vis spectroscopy (see picture for the adaptive beha ...

2005

Dye sensitized solar cell

Michael Graetzel, Shaik Mohammed Zakeeruddin, Peng Wang

A dye sensitized solar cell, wherein a compacting compound whose molecular structure comprises a terminal group, a hydrophobic part and an anchoring group is co-adsorbed together with the dye on the semi-conductive metal oxide layer of the photoanode, form ...

2005

Photovoltage study of charge injection from dye molecules into transparent hole and electron conductors

Ulf Anders Hagfeldt

Transient and spectral photovoltage (PV) have been investigated for charge injection from a dye [Ru(dcbpyH2)2(NCS)2] into transparent hole (CuSCN, CuI, CuAlO2) and electron ( TiO2, SnO2:F) conductors. The PV signal rises to a max. within 10 ns to 10 μs, de ...

2004

Effect-directed identification of oxygen and sulfur heterocycles as major polycyclic aromatic cytochrome P4501A-Inducers in a contaminated sediment

Kristin Schirmer

Heterocyclic polyaromatic compounds, including dinaphthofurans, 2-(2-naphthalenyl)benzothiophene, methylated chrysene, and benz[a]anthracene, were identified and confirmed as major cytochrome P4501A (CYP1A)-inducing compounds in a contaminated sediment clo ...

2003

Cyanine dye acting both as donor and acceptor in heterojunction photovoltaic devices

Frank Nüesch, Libero Zuppiroli

The investigation of the use of cyanine dyes in thin-film heterojunction photovoltaic devices was reported. It was shown that a carbocyanine dye acts as donor in conjunction with buckminsterfullerene (C60). Cyanine acts as acceptor when copoly(dicyano-phen ...

American Institute of Physics Inc.2003

Optimization of dye-sensitized solar cells prepared by compression method

Ulf Anders Hagfeldt

Nanostructured TiO2 films have been deposited onto conducting glass and on flexible conducting plastic substrates using a compression technique. Dye-sensitized solar cells prepd. from Degussa P25 TiO2 powder, red dye (Ru(dcbpy)2(SCN)2)(NBu4)2 (dcbpy = 2,2' ...

2002

Modified phthalocyanines for efficient near-IR sensitization of nanostructured TiO2 electrode

Ulf Anders Hagfeldt

A zinc phthalocyanine with tyrosine substituents (ZnPcTyr), modified for efficient far-red/near-IR performance in dye-sensitized nanostructured TiO2 solar cells, and its ref., glycine-substituted zinc phthalocyanine (ZnPcGly), were synthesized and characte ...

2002

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