Charge transfer and doping at organic/organic interfaces

We studied the electronic properties of technically relevant organic/organic interfaces using photoemission spectroscopy. Representatives of organic semiconductors from the family of the phthalocyanines were evaporated onto PEDOT:PSS [mixture of poly-3,4-ethylenedioxy-thiophene and polystyrenesulfon...

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Bibliographic Details
Published in:Applied physics letters 2003-11, Vol.83 (19), p.3930-3932
Main Authors: Peisert, H., Knupfer, M., Zhang, F., Petr, A., Dunsch, L., Fink, J.
Format: Article
Language:English
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Summary:We studied the electronic properties of technically relevant organic/organic interfaces using photoemission spectroscopy. Representatives of organic semiconductors from the family of the phthalocyanines were evaporated onto PEDOT:PSS [mixture of poly-3,4-ethylenedioxy-thiophene and polystyrenesulfonate] thin films, which are often applied as electrode material in organic semiconductor devices. Besides the formation of interface dipoles we observe energetic shifts of the electronic levels of the semiconductors, which are explained by a doping of the organic semiconductor near the interface due to a mixing of the two organic materials within the interface region.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.1622783