Royal Society of Chemistry, Analyst, 7(138), p. 1966
DOI: 10.1039/c3an36595f
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The dynamics of TiO conduction band electrons were followed with a novel broadband synchrotron-based transient mid-IR spectroscopy setup. The lifetime of conduction band electrons was found to be dependent on the injection method used. Direct band gap excitation results in a lifetime of 2.5 ns, whereas indirect excitation at 532 nm via Ru-N719 dye followed by injection from the dye into TiO results in a lifetime of 5.9 ns.