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Issue 7, 2013
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Transient mid-IR study of electron dynamics in TiO2 conduction band

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Abstract

The dynamics of TiO2 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 TiO2 results in a lifetime of 5.9 ns.

Graphical abstract: Transient mid-IR study of electron dynamics in TiO2 conduction band

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Submitted
01 Nov 2012
Accepted
06 Feb 2013
First published
07 Feb 2013

Analyst, 2013,138, 1966-1970
Article type
Communication

Transient mid-IR study of electron dynamics in TiO2 conduction band

J. Sá, P. Friedli, R. Geiger, P. Lerch, M. H. Rittmann-Frank, C. J. Milne, J. Szlachetko, F. G. Santomauro, J. A. van Bokhoven, M. Chergui, M. J. Rossi and H. Sigg, Analyst, 2013, 138, 1966
DOI: 10.1039/C3AN36595F

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