Electron Transfer Dynamics at Dye-Sensitized SnO2/TiO2 Core/Shell Electrodes in Aqueous/Nonaqueous Electrolyte Mixtures

• DOI: 10.1021/jacs.4c05187
• Publication Date: 2024-06-20T18:49:15Z
• Authors: Langqiu Xiao; Jacob A. Spies; Colton J. Sheehan; Zichen Zeng; Yunhan Gao; Tianyue Gao; Annika Ehrlacher; Michael W. Zuerch; Gary W. Brudvig; Thomas E. Mallouk

The dynamics of photoinduced electron transfer were measured at dye-sensitized photoanodes in aqueous (acetate buffer), nonaqueous (acetonitrile), and mixed solvent electrolytes by nanosecond transient absorption spectroscopy (TAS) ultrafast optical-pump terahertz-probe (OPTP). Higher injection efficiencies found for SnO