No Interfacial Layer for PEDOT Electrodes on PVDF: Characterization of Reactions at the Interface P(VDF/TrFE)/Al and P(VDF/TrFE)/PEDOT:PSS
- 1 January 2007
- journal article
- Published by Springer Nature in MRS Proceedings
- Vol. 997
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
This publication has 8 references indexed in Scilit:
- Organic thin film transistors with polymer high-k dielectric insulatorMaterials Science and Engineering: C, 2006
- A polymer high-k dielectric insulator for organic field-effect transistorsJournal of Applied Physics, 2005
- Large Area Electronics Using Printing MethodsProceedings of the IEEE, 2005
- Low voltage switching of a spin cast ferroelectric polymerApplied Physics Letters, 2004
- Schottky emission at the metal polymer interface and its effecton the polarization switching of ferroelectric poly(vinylidenefluoride-trifluoroethylene) copolymer thin filmsApplied Physics Letters, 2004
- Critical thickness of crystallization and discontinuous change in ferroelectric behavior with thickness in ferroelectric polymer thin filmsJournal of Applied Physics, 2001
- A spectro-microscopic approach for spatially resolved characterisation of semiconductor structures in PEEMSolid-State Electronics, 2000
- Ferroelectric properties of vinylidene fluoride copolymersPhase Transitions, 1989