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Interface dipole at organic/metal interfaces and organic solar cells
Linköping University, The Institute of Technology. Linköping University, Department of Science and Technology.ORCID iD: 0000-0001-8845-6296
2004 (English)In: Solar Energy Materials and Solar Cells, ISSN 0927-0248, Vol. 83, no 2-3, 147-168 p.Article in journal (Refereed) Published
Abstract [en]

In organic-based solar cells, the interface dipole present at the organic/metal interface participates to the collection and injection of charges between the electrode and the active organic material. The origins of the interface dipole is illustrated for a model system of the organic/metal interface composed of the electron-donor molecule p-phenylenediamine (PPDA) interacting with a nickel surface. The interface dipole created at the PPDA/Ni interface is characterized in a joint experimental and theoretical study using photoelectron spectroscopy and density functional theory calculations. The formation of strong interface dipoles upon chemisorption of a PPDA mono-layer is accompanied by a significant decrease (1.5eV) of the metal work function reaching 3.6eV.

Place, publisher, year, edition, pages
2004. Vol. 83, no 2-3, 147-168 p.
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-22589DOI: 10.1016/j.solmat.2004.02.022Local ID: 1865OAI: diva2:242902
Available from: 2009-10-07 Created: 2009-10-07 Last updated: 2013-09-12

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Crispin, Xavier
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The Institute of TechnologyDepartment of Science and Technology
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