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O: Fachverband Oberflächenphysik

O 97: Poster Session VII: Poster to Mini-Symposium: Molecular scale investigations of liquid-vapor interfaces II

O 97.2: Poster

Thursday, March 4, 2021, 10:30–12:30, P

Photon impact induced luminescence spectroscopy of a liquid microjet — •Dana Bloß1, Andreas Hans1, Christian Ozga1, Philipp Schmidt1, Xaver Holzapfel1, Arno Ehresmann1, Petr Slavícek2, Bernd Winter3, and André Knie11Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany — 2Department of Physical Chemistry, University of Chemistry and Technology Prague, Technicka 5, 16628 Prague, Czech Republic — 3Helmholtz-Zentrum Berlin für Materialien und Energie, Methods for Material Development, Albert-Einstein- Straße 15, 12489 Berlin, Germany

Liquids and especially liquid water have been subject to intense research for a long time due to their role in many chemical and biological systems. However, the investigation of liquid targets with fundamental methods of atomic and molecular physics, such as soft X-ray induced fluorescence spectroscopy, were a big challenge due to the required vacuum conditions. With the development of the liquid microjet technique the investigation of pure liquids or solutions after irradiation with synchrotron radiation became possible, which allows the exploration of the electronic structure of such complex systems. Here we present our results of dispersed luminescence from liquid water and demonstrate the possibilities of this detection method using this prototype system. One of the observed emission could be assigned to gas phase excited by Auger electrons escaping the liquid-vapor interface.

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