Personne

Christian Alexander Stephan Dette

Cette personne n’est plus à l’EPFL

Publications associées (7)

Electric-field control of single-molecule tautomerization

Klaus Kern, Christian Alexander Stephan Dette, Shai Mangel, Katharina Polyudov, Tobias Wollandt

The electric field is an important parameter to vary in a single-molecule experiment, because it can directly affect the charge distribution around the molecule. Yet, performing such an experiment with a well-defined electric field for a model chemical rea ...

2020

Trellises of Molecular Oxygen on Anatase TiO2(101)

Klaus Kern, Christian Alexander Stephan Dette, Feliciano Giustino, Shai Mangel

The adsorption of molecular oxygen has important implications for the catalytic activity of oxide surfaces, especially for oxidative TiO2 catalysts. In the case of anatase TiO2(101), several studies have noted the importance of surface defects which stabil ...

2019

Single-Molecule Vibrational Spectroscopy of H2O on Anatase TiO2(101)

Klaus Kern, Christian Alexander Stephan Dette, Feliciano Giustino, Shai Mangel

Atomic level understanding of water on titanium dioxide (TiO2), in particular the mineral form anatase, is exceptionally important, considering its practical applications including photocatalytic water-splitting, photoinduced hydrophilicity , and water pur ...

American Chemical Society2017

Atomic Scale Observation of Chemical and Electronic Properties of Metal-Oxide Surfaces

Christian Alexander Stephan Dette

To meet the future global energy demand - an estimated additional 10 terawatts (TWs) per year in 2050 - a diversification of energy sources and fuels is needed. Solar energy represents a prominent alternative energy source. An important material for these ...

EPFL2016

TiO2 Anatase with a Bandgap in the Visible Region

Klaus Kern, Christian Alexander Stephan Dette, Feliciano Giustino, Christopher Seiji Kley

TiO2 anatase plays a central role in energy and environmental research. A major bottleneck toward developing artificial photosynthesis with TiO2 is that it only absorbs ultraviolet light, owing to its large bandgap of 3.2 eV. If one could reduce the bandga ...

Amer Chemical Soc2014

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Dye-sensitized solar cells constitute a promising approach to sustainable and low-cost solar energy conversion. Their overall efficiency crucially depends on the effective coupling of the photosensitizers to the photoelectrode and the details of the dye's ...

Amer Chemical Soc2014

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Future combinations of plasmonics with nanometer-size electronic circuits require strategies to control the electrical excitation of plasmons at the length scale of individual molecules. A unique tool to study the electrical plasmon excitation with ultimat ...

Amer Chemical Soc2013

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