Capturing local structure modulations of photoexcited BiVO4 by ultrafast transient XAFS. Issue 53 (8th May 2017)

• Record Type: Journal Article
• Authors: Uemura, Yohei; Kido, Daiki; Koide, Akihiro; Wakisaka, Yuki; Niwa, Yasuhiro; Nozawa, Shunsuke; Ichiyanagi, Kohei; Fukaya, Ryo; Adachi, Shin-ichi; Katayama, Tetsuo; Togashi, Tadashi; Owada, Shigeki; Yabashi, Makina; Hatada, Keisuke; Iwase, Akihide; Kudo, Akihiko; Takakusagi, Satoru; Yokoyama, Toshihiko; Asakura, Kiyotaka
• Is Part Of: Chemical communications. Volume 53:Issue 53(2017)
• Page Start: 7314
• Page End: 7317
• Publication Date: 2017-05-08
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/c7cc02201h
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : Femto- and picosecond transient XAFS revealed the photoexcitation dynamics of BiVO4 . Abstract : Ultrafast excitation of photocatalytically active BiVO4 was characterized by femto- and picosecond transient X-ray absorption fine structure spectroscopy. An initial photoexcited state (≪500 fs) changed to a metastable state accompanied by a structural change with a time constant of ∼14 ps. The structural change might stabilize holes on oxygen atoms since the interaction between Bi and O increases.