Electron hopping rate measurements in ITO junctions: Charge diffusion in a layer-by-layer deposited ruthenium(II)-bis(benzimidazolyl)pyridine-phosphonate-TiO2 film Charles Y. Cummings, Jay D. Wadhawan, Takuya Nakabayashi, Masa-aki Haga, Liza Rassaei, Sara E. C. Dale, Simon Bending, Martin Pumera, Stephen C. Parker, Frank Marken* Journal Of Electroanalytical Chemistry 2011, 657(1-2), 196-201