@article{3c88a6fb15fc484bb50ec6ff5f07bcab,
title = "Hole Dynamics in Photoexcited Hematite Studied with Femtosecond Oxygen K-edge X-ray Absorption Spectroscopy",
abstract = "Hematite (α-Fe2O3) 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 to follow the dynamics of its photoexcited states. The 200 fs decay time of the hole state in the valence band was observed via its corresponding XAS feature.",
author = "Yohei Uemura and Ismail, {Ahmed S.M.} and Park, {Sang Han} and Soonnam Kwon and Minseok Kim and Hebatalla Elnaggar and Federica Frati and Hiroki Wadati and Yasuyuki Hirata and Yujun Zhang and Kohei Yamagami and Susumu Yamamoto and Iwao Matsuda and Ufuk Halisdemir and Gertjan Koster and Christopher Milne and Markus Ammann and Weckhuysen, {Bert M.} and {De Groot}, {Frank M.F.}",
note = "Funding Information: This work was financially supported by the European Research Council (ERC) under the European Union{\textquoteright}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: {\textcopyright} 2022 The Authors. Published by American Chemical Society.",
year = "2022",
month = may,
day = "19",
doi = "10.1021/acs.jpclett.2c00295",
language = "English",
volume = "13",
pages = "4207--4214",
journal = "The journal of physical chemistry letters",
issn = "1948-7185",
publisher = "American Chemical Society",
number = "19",
}
