Berlin 2005 – wissenschaftliches Programm
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SYOO: Organic Optoelectronics and Photonics
SYOO 6: Poster
SYOO 6.54: Poster
Montag, 7. März 2005, 18:00–20:00, Poster TU A
Electronic properties of pristine and potassium doped organic semiconductor hetero-interfaces CuPc/C60 and C60/CuPc — •Olga Molodtsova1, Torsten Schwieger1, Victor M. Zhilin2, Denis Vjalikh3, Victor Yu. Aristov2, and Martin Knupfer1 — 1Leibnitz Institute for Solid State and Materials Research, D-01069 Dresden, Germany — 2Institute of Solid State Physics, Chernogolovka, Moskow District 142432, Russia — 3Institute of Solid State Physics TU Dresden, D-01069 Dresden, Germany
In this contribution we report on the study of interface properties of the molecular organic semiconductor copper phthalocyanine (CuPc) deposited on C60 using photoemission spectroscopy (PES). Additionally we present the results obtained for the inversely prepared interface C60/CuPc with different orientation of the CuPc molecules (standing on polycrystalline gold substrate and lying on gold single crystal). We discuss important electronic parameters like electron and hole injection barriers and chemical interactions at these organic interfaces. Also we report on the study of changes of the electronic structure of CuPc at different levels of potassium (K) doping using PES and near-edge X-ray absorbtion spectroscopy (NEXAFS).