16646
J. Phys. Chem. C 2007, 111, 16646-16655
Charge-Transfer Dynamics at Model Metal-Organic Solar Cell Surfaces J. Ben Taylor,† Louise C. Mayor,† Janine C. Swarbrick,† James N. O’Shea,*,† and Joachim Schnadt‡ School of Physics and Astronomy, UniVersity of Nottingham, UniVersity Park, Nottingham, NG7 2RD, United Kingdom, and Department of Synchrotron Radiation Research, Lund UniVersity, P.O. Box 117, S-221 00 Lund, Sweden ReceiVed: July 10, 2007; In Final Form: August 21, 2007
The “core-hole clock” implementation of resonant photoemission has been used to investigate the chargetransfer dynamics of bi-isonicotinic acid molecules (4,4′-dicarboxy-2,2′-bipyridine) adsorbed on a rutile TiO2(110) surface containing varying densities of gold islands. In the presence of, nominally, a few monolayers of gold there exists a strong coupling between the adsorbed molecules and the surface. This is derived from the measurement of a
