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No Interfacial Layer for PEDOT Electrodes on PVDF: Characterization of Reactions at the Interface P(VDF/TrFE)/Al and P(VDF/TrFE)/PEDOT:PSS

Published online by Cambridge University Press:  01 February 2011

Klaus Mueller ,
Dipanka Mandal  and
Dieter Schmeisser
Klaus Mueller
Affiliation:
[email protected], BTU Cottbus, Applied Physics, Konrad Wachsmann Allee 1, Cottbus, 03046, Germany
Dipanka Mandal
Affiliation:
[email protected], BTU Cottbus, Cottbus, 03046, Germany
Dieter Schmeisser
Affiliation:
[email protected], BTU Cottbus, Cottbus, 03046, Germany
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Abstract

With photoelectron spectroscopy, we study the interface chemistry of the copolymer poly(vinylidene fluoride trifluoroethylene) (P(VDF-TrFE)) and different electrode materials. We compare the interfaces aluminum/P(VDF-TrFE) and PEDOT:PSS/P(VDF-TrFE). PEDOT:PSS is a conductive polymer (Poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate)). The data sug-gest that we have an interface layer for electrodes, made of aluminum. An interface reaction occurs in both cases: for aluminum as top and as bottom electrode. In contrast, the organic PE-DOT:PSS electrode shows no chemical interaction with the P(VDF-TrFE) polymer. The much lower reactivity of organic electrodes, compared to aluminum, gives a direct hint to im-proved functional properties of thin organic ferroelectric films.

Keywords

organicferroelectricmemory
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 997: Symposium I – Materials and Processes for Nonvolatile Memories II , 2007 , 0997-I06-02
Copyright
Copyright © Materials Research Society 2007

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