Regensburg 2004 – scientific programme
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SYOH: Organic and Hybrid Systems for Future Electronics
SYOH 5: Poster
SYOH 5.32: Poster
Thursday, March 11, 2004, 18:00–21:00, B
Electronic properties of organic/organic semiconductor interfaces CuPC/C60 — •Olga Molodtsova, Torsten Schwieger, and Martin Knupfer — Leibniz Institute for Solid State and Materials Research Dresden, D-01069 Dresden, Germany
Phthalocyanines and C60 are typical organic materials which are often
used in organic electronic devices such as diodes, transistors or solar
cells. Especially the electronic structure of their interface in solar
cells is of great interest for the functionality of these devices.
In this contribution we present a study of the interface properties of the
molecular organic semiconductor copper Phthalocyanine (CuPc) on C60
using photoemission (PES) and near-edge X-ray absorption spectroscopy
(NEXAFS). As well we present a study of C60/CuPc-interfaces with
different orientation of the molecules (standing on polycrystalline gold
and lying on gold single crystals). We discuss important electronic
parameters like electron and hole injection barriers and chemical
interactions at this organic/organic interface. Further we will adress the
electronic properties of mixed C60/CuPc-films.