Dresden 2017 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 50: Poster: Organic Electronics and Photovoltaics, Molecular Excitations

CPP 50.27: Poster

Mittwoch, 22. März 2017, 18:30–21:00, P3

A Novel Approach to Align Small Molecules Thin Films by Light-Directed Molecular Self-Assembly — •Andika Asyuda, Linus Pithan, Anton Zykov, Andreas Opitz, and Stefan Kowarik — Institut für Physik, Humboldt-Universität zu Berlin, Newtonstraße 15, 12489 Berlin, Germany

For the functionality of organic thin film devices, several film's structural properties, such as surface morphology, polymorphism, and molecular alignment, are known to be highly important. Recently light-directed molecular self-assembly (LDSA) was shown to promote a growth of aligned tetracene film(1). The versatility of this technique motivates us to closely investigate various related aspects, such as its implication on transport properties due to an optimization in molecular alignment. In this contribution we presented the state of art of LDSA toward a realisation of organic transistor with an increased mobility, due to an enhanced crystallinity and anisotropy in a molecular thin film.

1. L. Pithan, P. Beyer, L. Bogula, A. Zykov, P. Schäfer, J. Rawle, C. Nicklin, A. Opitz,and S. Kowarik, Adv. Mater. 2017 , 1604382