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DS: Fachverband Dünne Schichten

DS 58: Organic Electronics and Photovoltaics III
(Joint session of CPP, DS, HL and O, organized by CPP)

DS 58.4: Vortrag

Freitag, 11. März 2016, 10:15–10:30, H40

How Morphology Affects the Charge Transport: A Case Study for C60 — •Sebastian Schellhammer^1,2,3, Frank Ortmann^1,2, and Gianaurelio Cuniberti^1,2,3 — ¹Institute for Materials Science and Max Bergmann Center of Biomaterials, Technische Universität Dresden, 01062 Dresden, Germany — ²Dresden Center for Computational Materials Science, Technische Universität Dresden, 01062 Dresden, Germany — ³Center for Advancing Electronics Dresden, Technische Universität Dresden, 01062 Dresden, Germany

The performance of organic electronic devices is significantly influenced by the morphology of the individual layers. However, theoretical studies can cover mostly only highly ordered or completely amorphous systems.

We present a computational algorithm for the construction of arbitrarily ordered films ranging from amorphous to polycrystalline and highly crystalline. We demonstrate its application for a systematic study of the electron mobility in C60 systems depending on the degree of ordering which is based on a full parameterization of the electronic properties. Additionally, we present a generalization for other molecular materials such as pentacene as well as organic blends.