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Weak Charge Transfer Between an Acceptor Molecule and Metal Surfaces Enabling organic/metal Energy Level Tuning

Steffen Duhm, Hendrik Glowatzki, Valentin Cimpeanu, Jürgen Klankermayer, Jürgen P Rabe, Robert L Johnson, Norbert Koch

J Phys Chem B. 2006 Oct 26;110(42):21069-72.

PMID: 17048927

Abstract:

Evidence for charge transfer (CT) between the electron acceptor molecule octafluoroanthraquinone (FAQ) and the metal surfaces Ag(111) and polycrystalline Au is provided by ultraviolet photoelectron spectroscopy. The energy level alignment of subsequently deposited sexithienyl (6T) on FAQ-precovered metal substrates was investigated. Due to the metal work function change induced by the FAQ-metal CT, the hole injection barrier of 6T on FAQ-precovered metals could be reduced by up to 0.60 eV compared to that of 6T on pristine metal surfaces.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
AP1580183 Octafluoroanthraquinone Octafluoroanthraquinone 1580-18-3 Price
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