Piercy, VL;
Saeed, KH;
Prentice, AW;
Neri, G;
Li, C;
Gardner, AM;
Bai, Y;
... Cowan, AJ; + view all
(2021)
Time-Resolved Raman Spectroscopy of Polaron Formation in a Polymer Photocatalyst.
Journal of Physical Chemistry Letters
, 12
(44)
pp. 10899-10905.
10.1021/acs.jpclett.1c03073.
Preview |
Text
Zwijnenburg_acs.jpclett.1c03073.pdf Download (1MB) | Preview |
Abstract
Polymer photocatalysts are a synthetically diverse class of materials that can be used for the production of solar fuels such as H2, but the underlying mechanisms by which they operate are poorly understood. Time-resolved vibrational spectroscopy provides a powerful structure-specific probe of photogenerated species. Here we report the use of time-resolved resonance Raman (TR3) spectroscopy to study the formation of polaron pairs and electron polarons in one of the most active linear polymer photocatalysts for H2 production, poly(dibenzo[b,d]thiophene sulfone), P10. We identify that polaron-pair formation prior to thermalization of the initially generated excited states is an important pathway for the generation of long-lived photoelectrons.
| Type: | Article |
|---|---|
| Title: | Time-Resolved Raman Spectroscopy of Polaron Formation in a Polymer Photocatalyst |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1021/acs.jpclett.1c03073 |
| Publisher version: | https://doi.org/10.1021/acs.jpclett.1c03073 |
| Language: | English |
| Additional information: | This is an Open Access article published under a Creative Commons Attribution 4.0 International (CC BY 4.0) Licence (https://creativecommons.org/licenses/by/4.0/). |
| Keywords: | Polarons, Excitons, Polymers, Photocatalysts, Probes |
| 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/10137535 |
Archive Staff Only
 |
View Item |
