Ladislav Kavan

Cette personne n’est plus à l’EPFL

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Publications associées (47)

Projective Dynamics: Fusing Constraint Projections for Fast Simulation

Mark Pauly, Ladislav Kavan, Sofien Bouaziz

We present a new method for implicit time integration of physical systems. Our approach builds a bridge between nodal Finite Element methods and Position Based Dynamics, leading to a simple, efficient, robust, yet accurate solver that supports many differe ...

2014

Optically Transparent FTO-Free Cathode for Dye-Sensitized Solar Cells

Michael Graetzel, Shaik Mohammed Zakeeruddin, Paul Liska, Ladislav Kavan

The woven fabric containing electrochemically platinized tungsten wire is an affordable flexible cathode for liquid-junction dye-sensitized solar cells with the I-3(-)/I- redox mediator and electrolyte solution consisting of ionic liquids and propionitrile ...

Amer Chemical Soc2014

Electrochemical Characterization of TiO2 Blocking Layers for Dye-Sensitized Solar Cells

Michael Graetzel, Nicolas Tétreault, Ladislav Kavan, Thomas Moehl

Thin compact layers of TiO2 are grown by thermal oxidation of Ti, by spray pyrolysis, by electrochemical deposition, and by atomic layer deposition. These layers are used in dye-sensitized solar cells to prevent recombination of electrons from the substrat ...

American Chemical Society2014

Graphene-based cathodes for liquid-junction dye sensitized solar cells: Electrocatalytic and mass transport effects

Michael Graetzel, Jun Ho Yum, Ladislav Kavan

The optimization of mediator/cathode in a dye sensitized solar cell (DSC) requires detailed knowledge about their electrochemical properties. Particularly, the kinetics of mediator's turnover on the cathode and the mass transport of mediator in the electro ...

Pergamon-Elsevier Science Ltd2014

The Application of Electrospun Titania Nanofibers in Dye-sensitized Solar Cells

Michael Graetzel, Mohammad Khaja Nazeeruddin, Ladislav Kavan, Aravind Kumar Chandiran

Titania nanofibers were fabricated using the industrial Nanospider (TM) technology. The preparative protocol was optimized by screening various precursor materials to get pure anatase nanofibers. Composite films were prepared by mixing a commercial paste o ...

Schweizerische Chemische Gesellschaft2013

Nanofibrous TiO2 improving performance of mesoporous TiO2 electrode in dye-sensitized solar cell

Michael Graetzel, Jun Ho Yum, Ladislav Kavan

A method of direct coating of conducting glass by electrospinning was developed. Electrospun fibrous TiO2 consisting of closely packed anatase nanocrystals of 40-50 nm in size was incorporated into mesoporous TiO2 thin film stabilized by phosphorus. The me ...

Springer Verlag2013

Electrodes for dye-sensitized solar cells: A case of graphene-based materials

Michael Graetzel, Jun Ho Yum, Ladislav Kavan

Amer Chemical Soc2013

Metal free sensitizer and catalyst for dye sensitized solar cells

Michael Graetzel, Mohammad Khaja Nazeeruddin, Ladislav Kavan

The carbon neutral process for energy conversion is of utmost importance, in this context photovoltaics, especially dye sensitized solar cells (DSSCs) are a viable alternative. Few terawatts of carbon free renewable energy can be produced by DSSCs. However ...

Royal Society of Chemistry2013

Application of graphene-based nanostructures in dye-sensitized solar cells

Michael Graetzel, Jun Ho Yum, Ladislav Kavan

The paper reviews recent advances in the application of graphene and related materials, viz. graphene nanoplatelets (GNP), functionalized graphene sheets (FGS), graphene oxide (GO), and reduced graphene oxide (rGO) as electrode building materials in dye-se ...

Wiley-Blackwell2013

Voltage enhancement in dye-sensitized solar cell using (001)-oriented anatase TiO2 nanosheets

Michael Graetzel, Jacques-Edouard Moser, Paul Liska, Ladislav Kavan, Elham Ghadiri

A nanocrystalline TiO2 (anatase) nanosheet ex- posing mainly the (001) crystal faces was tested as photo- anode material in dye-sensitized solar cells. The nanosheets were prepared by hydrothermal growth in HF medium. Good-quality thin films were deposited ...

Springer2012

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