Regensburg 2016 – wissenschaftliches Programm

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O: Fachverband Oberflächenphysik

O 12: Morphology Prediction at Interfaces

O 12.6: Vortrag

Montag, 7. März 2016, 16:15–16:30, S051

In-situ LEEM study of the growth of NTCDA on Cu(001) — •Jana Wolters, Janina Felter, Markus Franke, Caroline Henneke, and Christian Kumpf — Peter Grünberg Institut (PGI-3), Forschungszentrum Jülich, 52425 Jülich, Germany and Jülich Aachen Research Alliance (JARA)-Fundamentals of Future Information Technology, Germany

A good understanding of the interactions between organic molecules and metal surfaces is essential for improving the performance of organic (opto-) electronic devices as well as for fundamental studies of thin organic films and metal-organic interfaces. In this context the first organic layer adsorbed on the metal substrate is of special importance since it is serving as a template for further growth and directly influences the physical properties of the interface.

As a model system, we investigated the growth of 1,4,5,8-naphthalene-tetracarboxylic-dianhydride (NTCDA) on the Cu(001)-surface in-situ and in real-time with LEEM, and correlated the results with structural information obtained by µLEED. We identified several different phases occurring at different temperatures. For one of them, we observed an unexpected behavior that resembles dendritic growth.