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Cited by 277

The DOI matches its Crossref record; 14 of the 14 references it cites were found in a registry or an index.

Electron–Hole Recombination Time at TiO2 Single-Crystal Surfaces: Influence of Surface Band Bending

Ozawa, Kenichi, Emori, Masato, Yamamoto, Susumu, Yukawa, Ryu, Yamamoto, Shingo, Hobara, Rei, Fujikawa, Kazushi, Sakama, Hiroshi, Matsuda, Iwao·2014·The Journal of Physical Chemistry Letters
DOI 10.1021/jz500770c
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Abstract

Photocatalytic activity is determined by the transport property of photoexcited carriers from the interior to the surface of photocatalysts. Because the carrier dynamics is influenced by a space charge layer (SCL) in the subsurface region, an understanding of the effect of the potential barrier of the SCL on the carrier behavior is essential. Here we have investigated the relaxation time of the photoexcited carriers on single-crystal anatase and rutile TiO2 surfaces by time-resolved photoelectron spectroscopy and found that carrier recombination, taking a nanosecond time scale at room temperature, is strongly influenced by the barrier height of the SCL. Under the flat-band condition, which is realized in nanometer-sized photocatalysts, the carriers have a longer lifetime on the anatase surface than the rutile one, naturally explaining the higher photocatalytic activity for anatase than rutile.

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Metadata

Authors
Ozawa, K., Emori, M., Yamamoto, S., Yukawa, R., Yamamoto, S., Hobara, R., Fujikawa, K., Sakama, H., & Matsuda, I.
Venue
The Journal of Physical Chemistry Letters
Publisher
American Chemical Society (ACS)
Published
2014-05-21
Volume
5
Issue
11
Pages
1953-1957
ISSN
1948-7185 (ISSN-L)
DOI
10.1021/jz500770c
OpenAlex
W2057230161
Cited by
277
References
14
FWCI
5.35
Type
journal article
Language
en
Open access
closed

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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