Publications de Theresa Lutz | EPFL Graph Search

Pentacene Excitons in Strong Electric Fields

Klaus Kern, Alexander Kabakchiev, Theresa Lutz

2018

Dynamic Control of Plasmon Generation by an Individual Quantum System

Klaus Kern, Markus Etzkorn, Uta Schlickum, Romain Froidevaux, Alexander Kabakchiev, Theresa Lutz, Christoph Grosse

Controlling light on the nanoscale in a similar way as electric currents has the potential to revolutionize the exchange and processing of information. Although light can be guided on this scale by coupling it to plasmons, that is, collective electron osci ...

Amer Chemical Soc2014

Molecular Orbital Gates for Plasmon Excitation

Klaus Kern, Uta Schlickum, Alexander Kabakchiev, Theresa Lutz, Christian Alexander Stephan Dette, Christoph Grosse

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

Surface morphology of MnSi thin films grown on Si(111)

Klaus Kern, Theresa Lutz, Giovanni Costantini

The surface morphology of MnSi thin films grown on Si(111)-7 x 7 substrates was investigated by systematically changing the amount of deposited Mn. A new 3 x 3 surface reconstruction was found at the very initial growth stages, whose atomic configuration w ...

Elsevier Science Bv2013

Electroluminescence properties of organic nanostructures studied by scanning tunnelling microscopy

Klaus Kern, Alexander Kabakchiev, Theresa Lutz

The control of light emission on the scale of individual quantum systems, like molecules or quantum dots, is a field of intense current research. One way to induce light emission from these systems is the local charge injection through the tip of a scannin ...

2012

Growth mode and atomic structure of MnSi thin films on Si(111)

Klaus Kern, Theresa Lutz, Giovanni Costantini

Thin films of MnSi(111) in B20 structure formed by reactive epitaxy on Si(111) are studied using scanning tunneling microscopy (STM) and density functional theory calculations. Coexisting root 3 x root 3 structures with high or low corrugation are observed ...

Amer Physical Soc2012

Crystalline Inverted Membranes Grown on Surfaces by Electrospray Ion Beam Deposition in Vacuum

Klaus Kern, Stephan Rauschenbach, Ralf Thomas Weitz, Theresa Lutz, Nicha Thontasen, Gordon Rinke, Giovanni Costantini

Wiley2012

Scanning Tunneling Microscopy and Luminescence of Individual Nanostructures

Theresa Lutz

A detailed investigation and characterization of the local properties of individual nanoscopic structures is of great importance for the understanding of novel physical phenomena at the nanoscale as well as for the assessment of their possible use in futur ...

EPFL2011

Terephthalic acid adsorption on Si(111)-(root 3x root 3)-Bi surfaces: Effect of Bi coverage

Klaus Kern, Theresa Lutz, Giovanni Costantini

The influence of the density of metallic atoms on the formation of supramolecular structures onto Si surface alloys is investigated by scanning tunneling microscopy. Terephthalic acid (TPA) adsorption experiments are performed on the Si(111) alpha- and bet ...

2011

Scanning Tunneling Luminescence of Individual CdSe Nanowires

Klaus Kern, Marko Burghard, Alexander Kabakchiev, Theresa Lutz, Thomas Dufaux, Zhe Wang

The local luminescence properties of individual CdSe nanowires composed of segments of zinc blende and wurtzite crystal structures are investigated by low-temperature scanning tunneling luminescence spectroscopy. Light emission from the wires is achieved b ...

2011

Reversing the shape transition of InAs/GaAs (001) quantum dots by etching-induced lateral In segregation

Klaus Kern, Theresa Lutz, Giovanni Costantini

The shape evolution of epitaxially grown InAs/GaAs(001) quantum dots after the controlled removal of material by an in situ etching gas is investigated by atomic force and scanning tunneling microscopy. The presence of {137} facets on the surface of partia ...

2010

Electroluminescence from Individual Pentacene Nanocrystals

Klaus Kern, Alexander Kabakchiev, Theresa Lutz

2010

Substrate effect on supramolecular self-assembly: from semiconductors to metals

Klaus Kern, Dietmar Payer, Theresa Lutz, Giovanni Costantini

Terephthalic acid (TPA) deposited on Si(111)-7 x 7, Si(111)-root 3 x root 3-Ag and Ag(111) has been studied as a model system to understand how much passivated semiconductor surfaces differ from semiconductor and metal surfaces in respect of supramolecular ...

2009