Hole Dynamics in Photoexcited Hematite Studied with Femtosecond Oxygen K-edge X-ray Absorption Spectroscopy

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Hole Dynamics in Photoexcited Hematite Studied with Femtosecond Oxygen K-edge X-ray Absorption Spectroscopy
 
Uemura, Yohei; Ismail, Ahmed S M; Park, Sang Han; Kwon, Soonnam; Kim, Minseok; Elnaggar, Hebatalla; Frati, Federica; Wadati, Hiroki; Hirata, Yasuyuki; Zhang, Yujun; Yamagami, Kohei; Yamamoto, Susumu; Matsuda, Iwao; Halisdemir, Ufuk; Koster, Gertjan; Milne, Christopher; Ammann, Markus; Weckhuysen, Bert M; de Groot, Frank M F
(2022) The journal of physical chemistry letters, volume 13, issue 19, pp. 4207 - 4214
(Article)
Abstract
Hematite (α-Fe 2O 3) is a photoelectrode for the water splitting process because of its relatively narrow bandgap and abundance in the earth's crust. In this study, the photoexcited state of a hematite thin film was investigated with femtosecond oxygen K-edge X-ray absorption spectroscopy (XAS) at the PAL-XFEL in order ... read more
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DOI: https://doi.org/10.1021/acs.jpclett.2c00295
ISSN: 1948-7185
Publisher: American Chemical Society : Division of Carbohydrate Chemistry
Note: Funding Information: This work was financially supported by the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (Grant Agreement No. 340279), Netherlands Center for Multiscale Catalytic Energy Conversion (MCEC), a Gravitation Program from The Netherlands Organisation for Scientific Research (NWO), Grant for collaborative research in Institute for Catalysis, Hokkaido University (18A1005), and a basic science research program funded by the Ministry of Education of Korea (NRF-2020R1A2C1007416 and 2018R1D1A1B07046676). This work was carried out by joint research in the Synchrotron Radiation Research Organization and the Institute for Solid State Physics, the University of Tokyo (Proposal No. 2019A7592). The experiments were performed at SSS end-station of PAL-XFEL (proposal no. 2019-second-SSS-013) funded by the Ministry of Science and ICT of Korea. Publisher Copyright: © 2022 The Authors. Published by American Chemical Society.
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