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MA: Fachverband Magnetismus

MA 28: Surface Magnetism I (jointly with O)

MA 28.1: Talk

Wednesday, March 9, 2016, 09:30–09:45, H31

Design and Synthesis of a Blatter Radical for Stable Thin Films — •Francesca Ciccullo¹, Nolan Gallagher², Andrzej Rajca Rajca², and Maria Benedetta Casu¹ — ¹Institute of Physical and Theoretical Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany — ²Department of Chemistry, University of Nebraska, Lincoln, Nebraska 68588-0304, United States

Organic radicals are fascinating materials because of their unique properties, which make them suitable for a variety of possible applications. Their synthesis may be challenging and big efforts have focused on chemical stability. However, introducing a new material in electronics requires not only chemically stable molecules but also stable thin films in view of their use in devices. In this work we have synthesized and characterized a derivative of the Blatter radical, bearing in mind the thermodynamic factors that govern thin film stability. We have proved our concept by investigating the electronic structure, the paramagnetic character and stability of the obtained films under UHV and ambient conditions, by in-situ X-ray photoelectron spectroscopy, ex-situ atomic force microscopy and electron paramagnetic resonance spectroscopy.