August 30, 2021 to September 3, 2021
University of Innsbruck
Europe/Zurich timezone

【237】Special Structures of a Prototypical Organic-Semiconductor Transparent-Electrode Interface: CuPc on In$_2$O$_3$(111)

Sep 1, 2021, 6:30 PM
Room C

Room C

Talk Surfaces, Interfaces and Thin Films Surfaces, Interfaces and Thin Films


Matthias Blatnik (CEITEC VUT Brno, Czechia)


Indium oxide (In$_2$O$_3$) is a ubiquitous anode material in OLEDs and photovoltaics due to its transmissivity to visible light and metal-like conductivity (when doped with Sn). When In$_2$O$_3$ is paired with organic materials, a thin organic buffer layer is often introduced to improve the charge injection from In$_2$O$_3$ to the organic active layers. We probe the adsorption behaviour and density of states (DOS) of the prototypical copper phthalocyanine (CuPc) - In$_2$O$_3$ interface combining scanning tunnelling microscopy, non-contact atomic force microscopy and local tunnelling spectroscopy. Starting from the clean In$_2$O$_3$(111) surface we identify morphological details of the molecular structures and their electronic properties and compare the results to DFT calculations.

Primary authors

Matthias Blatnik (CEITEC VUT Brno, Czechia) Fabio Calcinelli (TU Graz) Peter Jacobson (The University of Queensland, Brisbane, Australia) Andreas Jeindl (TU Graz) Oliver T. Hofmann (TU Graz) Jan Cechal (CEITEC VUT Brno, Czechia) Michael Schmid (Institute of Applied Physics, TU Wien) Ulrike Diebold (Institute of Applied Physics, TU Wien) Margareta Wagner (TU Wien)

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