Publication

Interfacial engineering for competitive Dye-Sensitized Solar Cells production

Related publications (219)

Electron donor-acceptor distance dependence of the dynamics of light-induced interfacial charge transfer in the dye-sensitization of nanocrystalline oxide semiconductors

Mohammad Khaja Nazeeruddin, Shaik Mohammed Zakeeruddin, Jacques-Edouard Moser, Christophe Bauer, Pascal Comte, Bernard Wenger

The effect of electronic and nuclear factors on the dynamics of dye-to-semiconductor electron transfer was studied employing RuII(terpy)(NCS)3 sensitizers grafted onto transparent films made of titanium dioxide nanoparticles. Various approaches were strive ...

2006

Sensitized hole injection of phosphorus porphyrin into NiO: toward new photovoltaic devices

Ulf Anders Hagfeldt

This paper describes the preparation and the characterization of a photovoltaic cell based on the sensitization of a wide band gap p-type semiconductor (NiO) with a phosphorus porphyrin. A photophysical study with femtosecond transient absorption spectrosc ...

2005

Influence of electrolyte in transport and recombination in dye-sensitized solar cells studied by impedance spectroscopy

Ulf Anders Hagfeldt

The main features of the characteristic impedance spectra of dye-sensitized solar cells are described in a wide range of potential conditions: from open to short circuit. An equivalent circuit model was proposed to describe the parameters of electron trans ...

2005

Dye-Sensitized Solar Cells Based on Nanocrystalline TiO2 Films Surface Treated with Al3+ Ions: Photovoltage and Electron Transport Studies

Ulf Anders Hagfeldt

Nanocryst. TiO2 films, surface modified with Al3+, were manufd. by depositing a TiO2 suspension contg. small amts. of Al nitrate or Al chloride onto conducting glass substrates, followed by drying, compression, and finally heating to 530°. Electrodes prepd ...

2005

Comparison of charge accumulation and transport in nanostructured dye-sensitized solar cells with electrolyte or CuSCN as hole conductor

Ulf Anders Hagfeldt

The charge transport properties of the dye-sensitized solar cells consisting of Ru(dcbpyH2)2(NCS)2-sensitized nanostructured TiO2 with either redox electrolyte or CuSCN as hole conductor were compared. The electron transport time and the electron charge in ...

2005

Photoinduced Ultrafast Dynamics of Coumarin 343 Sensitized p-Type-Nanostructured NiO Films

Ulf Anders Hagfeldt

Photoinduced electron transfer from the valence band of nanocryst. NiO, a p-type semiconductor, to an excited bound dye, Coumarin 343, and the subsequent recombination have been measured by femtosecond transient absorbance spectroscopy probing with white l ...

2005

Interfacial properties of photovoltaic TiO2/dye/PEDOT-PSS heterojunctions

Ulf Anders Hagfeldt

Systems comprising a dense TiO2 film electrode, a ruthenium polypyridine dye and a PEDOT-PSS (poly(3,4-ethylenedioxythiophene)-poly(4-styrenesulfonate)) film were prepd. The heterojunctions have photovoltaic properties, with the dye absorbing the light, th ...

2005

Activation Energy of Electron Transport in Dye-Sensitized TiO2 Solar Cells

Ulf Anders Hagfeldt

Various characteristics of dye-sensitized nanostructured TiO2 solar cells, such as electron transport and electron lifetime, were studied in detail using monochromatic illumination conditions. The electron transport was found to be a thermally activated pr ...

2005

Reactivity of Monolayer-Protected Gold Nanoclusters at Dye-Sensitized Liquid/Liquid Interfaces

Hubert Girault, Bin Su, Nicolas Eugster

Hexanethiolate monolayer-protected gold nanoclusters (MPCs) were used as redox quenchers at the polarizable water/1,2-dichloroethane (DCE) interface. Photocurrent responses originating from the heterogeneous quenching of photoexcited water soluble porphyri ...

2005

Alternative redox systems for the dye-sensitized solar cell

Hervé Nusbaumer

Due to their high efficiencies and their potentially low production costs, dye-sensitized solar cells (DSSC) have attracted much attention during the last few years. The technology is based on a layer made of mesoscopic TiO2 film which significantly increa ...

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