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Dresden 2014 – wissenschaftliches Programm

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DS: Fachverband Dünne Schichten

DS 27: Organic Thin Films II

DS 27.4: Vortrag

Mittwoch, 2. April 2014, 15:45–16:00, CHE 91

Dynamics at Pentacene/C60 interfaces studied by time resolved photoluminescence — •Nils Rosemann, Andrea Karthäuser, Gregor Witte, and Sangam Chatterjee — Philipps-Universität Marburg, Marburg, Germany

The combination of Pentacene (PEN) and C60 is a promising model system for next-generation solar cells based on organic semiconductors. Here, the C60 acts as an electron acceptor while PEN, on the other hand, attracts the holes. One of the remaining challenges in this system is the underlying charge-transfer mechanism. In general the efficiency of this charge separation will depend on the structural and electronic states at the interface. To study these dynamics, we performed time-resolved photoluminescence measurements on a thin PEN layer of standing molecules covered by C60. The data indicate the formation of correlated states across the interface.

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