Publications de Bernard Wenger

Transparent and Robust Silica Coatings with Dual Range Porosity for Enzyme-Based Optical Biosensing

Bernard Wenger, Heinrich Hofmann, Raphaël Pugin, Oswaldo Javier Pérez Anguiano, Emmanuel Scolan

Hierarchically porous transparent silica coatings combine large specific surface area with enhanced pore accessibility for optical biosensing. This paper describes a versatile approach to fabricate optically transparent silica coatings with multiscale poro ...

Wiley-Blackwell2017

Controlling Mesopore Size and Processability of Transparent Enzyme-Loaded Silica Films for Biosensing Applications

Bernard Wenger, Heinrich Hofmann, Raphaël Pugin, Oswaldo Javier Pérez Anguiano, Emmanuel Scolan

Silica-based nanoporous thin films including large mesopores are relevant as enzyme supports for applications in biosensing. The diffusion and immobilization of large biomolecules such as enzymes in such porous films require the presence of large mesopores ...

Amer Chemical Soc2015

Inexpensive and fast wafer-scale fabrication of nanohole arrays in thin gold ﬁlms for plasmonics

Bernard Wenger, Jürgen Brugger, Harry Heinzelmann, Mona Julia Katharina Klein, Raphaël Pugin

In this paper, a fast and inexpensive wafer-scale process for the fabrication of arrays of nanoscale holes in thin gold ﬁlms for plasmonics is shown. The process combines nanosphere lithography using spin-coated polystyrene beads with a sputter-etching pro ...

Institute of Physics2010

Ultrafast charge transfer through p-oligo(phenylene) bridges: effect of nonequilibrium vibrations

Serge Pelet, Bernard Wenger, Pascal Comte, Michael Graetzel, Jacques-Edouard Moser, Mohammad Khaja Nazeeruddin, Shaik Mohammed Zakeeruddin, Joël Teuscher, Christophe Bauer

Electron transfers (ET) between a donor (D) and an acceptor (A) through a molecular bridge (B) are of great importance in biological systems, molecular electronics and molecular based light-energy conversion systems. Here, the back and the forward electron ...

Current Science Assoc // Indian Academy of Sciences2010

Dynamics of Photoinduced Interfacial Electron Transfer and Charge Transport in Dye-Sensitized Mesoscopic Semiconductors

Bernard Wenger, Jacques-Edouard Moser, Joël Teuscher, Christophe Bauer, Verner Thorsmolle

Molecular systems designed for the conversion of solar energy offer ideal models in the study of the kinetics of light-induced electron transfer at surfaces. Due to their high porosity, nanocrystalline oxide semiconductor films allow investigations of inte ...

Schweizerische Chemische Gesellschaft2007

High Molar Extinction Coefficient Heteroleptic Ruthenium Complexes for Thin Film Dye-Sensitized Solar Cells

Bernard Wenger, Michael Graetzel, Jacques-Edouard Moser, Shaik Mohammed Zakeeruddin, Robin Humphry-Baker

2006

Effect of electronic and nuclear factors on the dynamics of dye-to-semiconductor electron transfer

Bernard Wenger

Dye-to-semiconductor electron transfer is the initial step in many processes where light is used for the storage of information (e. g. color photography) or converted into electricity as in dye-sensitized solar cells. In the latter, interfacial charge inje ...

EPFL2006

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

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

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

Origin of the kinetic heterogeneity of ultrafast light-induced electron transfer from Ru(II)-complex dyes to nanocrystalline semiconducting particles

Bernard Wenger, Michael Graetzel, Jacques-Edouard Moser

2005

Charge separation and efficient light energy conversion in sensitized mesoscopic photoelectrochemical cells based on binary ionic liquids

Bernard Wenger, Michael Graetzel, Jacques-Edouard Moser, Shaik Mohammed Zakeeruddin, Robin Humphry-Baker, Joël Teuscher, Peng Wang

2005

Rationale for Kinetic Heterogeneity of Ultrafast Light-Induced Electron Transfer from Ru(II) Complex Sensitizers to Nanocrystalline TiO2

Bernard Wenger, Michael Graetzel, Jacques-Edouard Moser

2005