Berlin 2012 – scientific programme

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DS: Fachverband Dünne Schichten

DS 31: Organic thin films I

DS 31.3: Talk

Thursday, March 29, 2012, 11:45–12:00, H 0111

Charge transfer at phthalocyanine heterojunctions — •Susi Lindner, Benjamin Mahns, and Martin Knupfer — IFW Dresden, P.O. Box 270116, 01171 Dresden

Motivated by interesting electronic and magnetic properties of organic semiconductors like transition metal phthalocyanines we studied the organic-organic interfaces of CoPc, F₁₆CoPc and MnPc on various metal substrates (Au and Ag) by means of x-ray and ultra violet photoemission spectroscopy. We show that a charge transfer can be achieved at the interface between this well known molecules. Additionally, in this effect the transition metal center is mainly involved resulting in oxidized Mn^δ+Pc and reduced F₁₆Co^δ−Pc, as well as Co^δ−Pc species.

This project is supported by the DFG (KN 393/14).