Piercy, Verity L, Saeed, Khezar H 
ORCID: 0000-0001-7207-9836, Prentice, Andrew W, Neri, Gaia, Li, Chao, Gardner, Adrian M ORCID: 0000-0002-2423-8799, Bai, Yang, Sprick, Reiner Sebastian, Sazanovich, Igor V, Cooper, Andrew I ORCID: 0000-0003-0201-1021 et al (show 3 more authors)
(2021)
Time-Resolved Raman Spectroscopy of Polaron Formation in a Polymer Photocatalyst.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 12 (44).
pp. 10899-10905.
|
Text
acs.jpclett.1c03073.pdf - Published version 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 H<sub>2</sub>, 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 (TR<sup>3</sup>) spectroscopy to study the formation of polaron pairs and electron polarons in one of the most active linear polymer photocatalysts for H<sub>2</sub> production, poly(dibenzo[<i>b</i>,<i>d</i>]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.
| Item Type: | Article |
|---|---|
| Divisions: | Faculty of Science and Engineering > School of Physical Sciences |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 04 Nov 2021 11:45 |
| Last Modified: | 18 Jan 2023 21:25 |
| DOI: | 10.1021/acs.jpclett.1c03073 |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3142751 |
Dimensions
Dimensions
