Photoinduced anisotropic distortion as the electron trapping site of tungsten trioxide by ultrafast W L-1-edge X-ray absorption spectroscopy with full potential multiple scattering calculations

Koide, Akihiro; Uemura, Yohei; Kido, Daiki; Wakisaka, Yuki; Takakusagi, Satoru; Ohtani, Bunsho; Niwa, Yasuhiro; Nozawa, Shunsuke; Ichiyanagi, Kohei; Fukaya, Ryo; Adachi, Shin-ichi; Katayama, Tetsuo; Togashi, Tadashi; Owada, Shigeki; Yabashi, Makina; Yamamoto, Yusaku; Katayama, Misaki; Hatada, Keisuke; Yokoyama, Toshihiko; Asakura, Kiyotaka

Photoinduced anisotropic distortion as the electron trapping site of tungsten trioxide by ultrafast W L-1-edge X-ray absorption spectroscopy with full potential multiple scattering calculations

Koide, Akihiro; Uemura, Yohei; Kido, Daiki et al.

Physical chemistry chemical physics, 2020, 22(5), 2615-2621

Permalink : https://hdl.handle.net/2115/80380

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アクセス権	open access
URI	https://hdl.handle.net/2115/80380
タイトル	Photoinduced anisotropic distortion as the electron trapping site of tungsten trioxide by ultrafast W L-1-edge X-ray absorption spectroscopy with full potential multiple scattering calculations
著者	Koide, Akihiro ; Uemura, Yohei ; Kido, Daiki ; Wakisaka, Yuki ; Takakusagi, Satoru ; Ohtani, Bunsho ; Niwa, Yasuhiro ; Nozawa, Shunsuke ; Ichiyanagi, Kohei ; Fukaya, Ryo ; Adachi, Shin-ichi ; Katayama, Tetsuo ; Togashi, Tadashi ; Owada, Shigeki ; Yabashi, Makina ; Yamamoto, Yusaku ; Katayama, Misaki ; Hatada, Keisuke ; Yokoyama, Toshihiko ; Asakura, Kiyotaka
著者名 Koide, Akihiro
著者名 Uemura, Yohei
著者名 Kido, Daiki
著者名 Wakisaka, Yuki
e-Rad_Researcher 30359484 著者名 Takakusagi, Satoru
e-Rad_Researcher 80176924 著者名 Ohtani, Bunsho
著者名 Niwa, Yasuhiro
著者名 Nozawa, Shunsuke
著者名 Ichiyanagi, Kohei
著者名 Fukaya, Ryo
著者名 Adachi, Shin-ichi
著者名 Katayama, Tetsuo
著者名 Togashi, Tadashi
著者名 Owada, Shigeki
著者名 Yabashi, Makina
著者名 Yamamoto, Yusaku
著者名 Katayama, Misaki
著者名 Hatada, Keisuke
著者名 Yokoyama, Toshihiko
e-Rad_Researcher 60175164 著者名 Asakura, Kiyotaka
言語	英語
発行日	2020-02-07
出版者	Royal Society of Chemistry
収録物名	Physical chemistry chemical physics
巻(号)	22(5)
ページ	2615-2621
抄録	Understanding the excited state of photocatalysts is significant to improve their activity for water splitting reaction. X-ray absorption fine structure (XAFS) spectroscopy in X-ray free electron lasers (XFEL) is a powerful method to address dynamic changes in electronic states and structures of photocatalysts in the excited state in ultrafast short time scales. The ultrafast atomic-scale local structural change in photoexcited WO3 was observed by W L-1 edge XAFS spectroscopy using an XFEL. An anisotropic local distortion around the W atom could reproduce well the spectral features at a delay time of 100 ps after photoexcitation based on full potential multiple scattering calculations. The distortion involved the movement of W to shrink the shortest W-O bonds and elongate the longest one. The movement of the W atom could be explained by the filling of the d(xy) and d(zx) orbitals, which were originally located at the bottom of the conduction band with photoexcited electrons.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
PISSN	1463-9076
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1039/c9cp01332f