Publications by Alexander Kabakchiev

Pentacene Excitons in Strong Electric Fields

Klaus Kern, Theresa Lutz, Alexander Kabakchiev

2018

Dynamic Control of Plasmon Generation by an Individual Quantum System

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

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, Christian Alexander Stephan Dette, Theresa Lutz, Christoph Grosse, Alexander Kabakchiev

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

Electroluminescence properties of organic nanostructures studied by scanning tunnelling microscopy

Klaus Kern, Theresa Lutz, Alexander Kabakchiev

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

Scanning Tunneling Luminescence of Individual CdSe Nanowires

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

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

Scanning Tunneling Luminescence of Pentacene Nanocrystals

Alexander Kabakchiev

Organic semiconductors are promising materials for future electronic and electroluminescence applications. A detailed understanding of organic layers and nano-sized crystals down to single molecules can address fundamental questions of contacting organic s ...

EPFL2010

Versatile optical access to the tunnel gap in a low-temperature scanning tunneling microscope

Klaus Kern, Alexander Kabakchiev

We developed a setup that provides three independent optical access paths to the tunnel junction of an ultrahigh vacuum low temperature (4.2 K) scanning tunneling microscope (STM). Each path can be individually chosen to couple light in or out, or to image ...

2010

Electroluminescence from Individual Pentacene Nanocrystals

Klaus Kern, Theresa Lutz, Alexander Kabakchiev

2010