Photoexcited Electron-transfer Properties of C60 Film on Graphite and on Au(111) Interfaces Studied by Two-photon Photoemission Spectroscopy

We have employed two-photon photoemission (2PPE) spectroscopy to observe photoinduced charge transfer at C60 fullerene thin films formed on graphite and Au(111) substrates. From the analysis of the 2PPE intensities of molecular-derived unoccupied states, it is revealed that the photoexcited electron...

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Bibliographic Details
Published in:Chemistry letters 2017, Vol.46 (10), p.1528-1531
Main Authors: Shibuta, Masahiro, Yamamoto, Kazuo, Yamagiwa, Kana, Eguchi, Toyoaki, Nakajima, Atsushi
Format: Article
Language:eng ; jpn
Subjects:
Buckminsterfullerene
Charge transfer
Electron transfer
Fullerenes
Graphite
Photoelectric emission
Spectrum analysis
Substrates
Thin films
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Summary:We have employed two-photon photoemission (2PPE) spectroscopy to observe photoinduced charge transfer at C60 fullerene thin films formed on graphite and Au(111) substrates. From the analysis of the 2PPE intensities of molecular-derived unoccupied states, it is revealed that the photoexcited electron transfer from graphite substrate to C60 is suppressed compared to C60 on Au(111), owing to inert properties of graphite surfaces.
ISSN:0366-7022
1348-0715
DOI:10.1246/cl.170641