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Chemical and electronic aspects of metal/conjugated polymer interfaces: Implications for electronic devices
Service de Chimie des Matériaux Nouveaux Centre de Recherche en Electronique et Photonique Moléculaires Université de Mons-Hainaut, Mons, Belgium.
Service de Chimie des Matériaux Nouveaux Centre de Recherche en Electronique et Photonique Moléculaires Université de Mons-Hainaut, Mons, Belgium.
Service de Chimie des Matériaux Nouveaux Centre de Recherche en Electronique et Photonique Moléculaires Université de Mons-Hainaut, Mons, Belgium.
Service de Chimie des Matériaux Nouveaux Centre de Recherche en Electronique et Photonique Moléculaires Université de Mons-Hainaut, Mons, Belgium.
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1995 (English)In: Synthetic metals, ISSN 0379-6779, E-ISSN 1879-3290, Vol. 71, no 1-3, 2159-2162 p.Article in journal (Refereed) PublishedText
Abstract [en]

The chemical nature and the electronic structure of metal/conjugated polymer interfaces are investigated in the context of polymer-based light-emitting diodes. We consider the interaction of low-workfunction metals (Al, Ca) with the surface of conjugated polymers or model oligomer molecules with a combined experimental and theoretical approach. The early stages of the interface formation are followed with X-ray and ultraviolet photoelectron spectroscopies and the experimental data are compared to the results of quantum chemical calculations. The reactions of Al and Ca with the organic surface are found to be fundamentally different: while the former forms new covalent bonds onto the polymer backbone, the latter tends to dope the conjugated system. Both types of reaction are expected to modify drastically the electronic properties of the polymer semiconductor.

Place, publisher, year, edition, pages
Elsevier, 1995. Vol. 71, no 1-3, 2159-2162 p.
National Category
Chemical Sciences Physical Sciences
Identifiers
URN: urn:nbn:se:liu:diva-124177DOI: 10.1016/0379-6779(94)03203-IISI: A1995QT32600261OAI: oai:DiVA.org:liu-124177DiVA: diva2:896188
Conference
Proceedings of the International Conference on Science and Technology of Synthetic Metals (ICSM ’94), Seoul, Korea, 24–29 July 1994, Vols. 69/71
Available from: 2016-01-20 Created: 2016-01-20 Last updated: 2016-02-02Bibliographically approved

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Lögdlund, MichaelDannetun, PerStafström, SvenSalaneck, William R.
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Department of Physics, Chemistry and BiologyThe Institute of Technology
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