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Nature of band-gap states in V-doped TiO2 revealed by resonant photoemission

Abstract:
Band-gap states in V-doped TiO2 have been studied by photoemission spectroscopy over a range of photon energies encompassing the Ti 3p and V 3p core thresholds. The states show resonant enhancement at photon energies significantly higher than found for Ti 3d states introduced into TiO2 by oxygen deficiency or alkali-metal adsorbates. This demonstrates that the gap states relate to electrons trapped on dopant V cations rather than host Ti cations.
Publication status:
Published
Peer review status:
Peer reviewed
Version:
Publisher's version

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Institution:
University of Oxford
Department:
Mathematical,Physical & Life Sciences Division - Chemistry - Inorganic Chemistry Laboratory
Role:
Author
More by this author
Institution:
University of Oxford
Department:
Mathematical,Physical & Life Sciences Division - Chemistry - Inorganic Chemistry Laboratory
Role:
Author
More by this author
Institution:
University of Oxford
Department:
Mathematical,Physical & Life Sciences Division - Chemistry - Inorganic Chemistry Laboratory
Role:
Author
More by this author
Institution:
University of Oxford
Department:
Mathematical,Physical & Life Sciences Division - Chemistry - Inorganic Chemistry Laboratory
Role:
Author
More by this author
Institution:
University of Oxford
Department:
Mathematical,Physical & Life Sciences Division - Chemistry - Inorganic Chemistry Laboratory
Role:
Author
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Publisher:
The American Physical Society Publisher's website
Journal:
Physical Review B Journal website
Volume:
55
Issue:
24
Pages:
16083 -16087
Publication date:
1997-06-05
EISSN:
1550-235x
ISSN:
1098-0211
URN:
uuid:30f7e80c-b7f0-4992-9479-9c7a82ffe84e
Local pid:
ora:1421

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