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TiO2 Polarons in the Time Domain: Implications for Photocatalysis

Tanner, AJ; Thornton, G; (2022) TiO2 Polarons in the Time Domain: Implications for Photocatalysis. Journal of Physical Chemistry Letters , 13 pp. 559-566. 10.1021/acs.jpclett.1c03677. (In press).

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Abstract

Exploiting the availability of solar energy to produce valuable chemicals is imperative in our quest for a sustainable energy cycle. TiO2 has emerged as an efficient photocatalyst, and as such its photochemistry has been studied extensively. It is well-known that polaronic defect states impact the activity of this chemistry. As such, understanding the fundamental excitation mechanisms deserves the attention of the scientific community. However, isolating the contribution of polarons to these processes has required increasingly creative experimental techniques and expensive theory. In this Perspective, we discuss recent advances in this field, with a particular focus on two-photon photoemission spectroscopy (2PPE) and density functional theory (DFT), and discuss the implications for photocatalysis.

Type: Article
Title: TiO2 Polarons in the Time Domain: Implications for Photocatalysis
Location: United States
DOI: 10.1021/acs.jpclett.1c03677
Publisher version: https://doi.org/10.1021/acs.jpclett.1c03677
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry
URI: https://discovery.ucl.ac.uk/id/eprint/10141904
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