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Self-Assembled Bilayer Films of Ruthenium(II)/Polypyridyl Complexes through Layer-by-Layer Deposition on Nanostructured Metal Oxides

Authors


  • This work was partially funded by the UNC Energy Frontier Research Center (EFRC) “Center for Solar Fuels”, an EFRC funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under award DE-SC0001011, which supported D.L.A., M.R.N. (M.K.B., J.J.C., T.J.M.), and electrochemical studies by K.H. (T.J.M.). The CCHF, an EFRC funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under award number DE-SC0001298 at the University of Virginia supported C.R.K.G. and W.S. (T.J.M.). Funding for the photophysical studies by K.H. (T.J.M.) was provided by the U.S. Department of Energy under award number DE-FG02-06ER15788. A.K.V. (T.J.M.) was supported by the Army Research Office Grant W911NF-09-1-0426. Support for L.A. (T.J.M.) was provided by Research Triangle Solar Fuels Institute. H.L. (T.J.M.) is supported by a Royster Society Fellowship. D.A.T. (T.J.M.) is an unfunded, undergraduate research student. We acknowledge support for the purchase of instrumentation from the UNC EFRC (Center for Solar Fuels), funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under award number DE-SC0001011), and UNC SERC (“Solar Energy Research Center Instrumentation Facility” funded by the U.S. Department of Energy Office of Energy Efficiency & Renewable Energy under award number DE-EE0003188).

Abstract

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Simple assembly: A “layer-by-layer” deposition of functionalized dyes/catalysts on the surfaces of nanocrystalline oxides is introduced. The strategy is general and offers considerable flexibility based on phosphonate- or carboxylate-binding groups with ZrIV as bridging ions. The resulting bilayer structures are capable of supporting rapid intra-layer energy and electron transfer (see picture).

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