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Energetics at Au top and bottom contacts on conjugated polymers
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Surface Physics and Chemistry .
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Surface Physics and Chemistry .
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Surface Physics and Chemistry .
Linköping University, The Institute of Technology. Linköping University, Department of Science and Technology.
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2006 (English)In: Applied Physics Letters, ISSN 0003-6951, Vol. 88, no 19Article in journal (Refereed) Published
Abstract [en]

Photoelectron spectroscopy was employed to examine the energetics, and therefore charge injection barriers, at top and bottom contact configurations of gold and conjugated polymers, i.e., polymer spin coated on gold and vapor-deposited gold on polymer interfaces. Very similar results are obtained for both ex situ (contaminated) and in situ (clean) prepared interfaces: a 0.7-0.8 eV decrease in the vacuum energy levels is consistently observed as compared to bare polycrystalline gold. These observations are explained by changes of the metal work function upon contacting either polymers or contaminants, associated with the reduction of the electron density tail that extends outside the metal surface. © 2006 American Institute of Physics.

Place, publisher, year, edition, pages
2006. Vol. 88, no 19
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Natural Sciences
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URN: urn:nbn:se:liu:diva-36041DOI: 10.1063/1.2201627Local ID: 29551OAI: oai:DiVA.org:liu-36041DiVA: diva2:256889
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2011-01-11

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Osikowicz, Wojciechde Jong, Michel PBraun, SlawomirTengstedt, CarlFahlman, MatsSalaneck, William R

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Osikowicz, Wojciechde Jong, Michel PBraun, SlawomirTengstedt, CarlFahlman, MatsSalaneck, William R
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