Wet chemically prepared rutile TiO2(110) and TiO2(011): Substrate preparation for surface studies under non-UHV conditions

M. H M Ahmed; F. P. Lydiatt; D. Chekulaev; P. L. Wincott; D. J. Vaughan; J. H. Jang; S. Baldelli; A. G. Thomas; W. S. Walters; R. Lindsay

doi:10.1016/j.susc.2014.06.020

Wet chemically prepared rutile TiO2(110) and TiO2(011): Substrate preparation for surface studies under non-UHV conditions

M. H M Ahmed, F. P. Lydiatt, D. Chekulaev, P. L. Wincott, D. J. Vaughan, J. H. Jang, S. Baldelli, A. G. Thomas, W. S. Walters, R. Lindsay

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Abstract

© 2014 Elsevier B.V.A procedure for wet chemical preparation of TiO2 single crystal surfaces is detailed. The potential of this procedure is demonstrated through application to rutile-TiO2(110) and rutile-TiO2(011) substrates. Characterisation with atomic force microscopy, low energy electron diffraction, auger electron spectroscopy, and vibrational sum frequency spectroscopy indicates that flat, well-ordered, carbon-free surfaces can be generated. Notably, in contrast to the (2 × 1) low energy electron diffraction pattern observed for TiO2(011) prepared in ultra-high vacuum, wet chemical preparation results in a (4 × 1) unit cell; wet chemically prepared TiO2(110) displays an unreconstructed (1 × 1) surface.

Original language	English
Pages (from-to)	41-45
Number of pages	4
Journal	Surface Science
Volume	630
DOIs	https://doi.org/10.1016/j.susc.2014.06.020
Publication status	Published - 2014

Keywords

Low miller index single crystal surface
Metal oxide
Surface composition
Surface structure
Wet chemical preparation

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10.1016/j.susc.2014.06.020

POST-PEER-REVIEW-NON-PUBLISHERS.PDFAccepted author manuscript, 8.23 MB

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@article{c585374aa077451e843a50ec61232266,

title = "Wet chemically prepared rutile TiO2(110) and TiO2(011): Substrate preparation for surface studies under non-UHV conditions",

abstract = "{\textcopyright} 2014 Elsevier B.V.A procedure for wet chemical preparation of TiO2 single crystal surfaces is detailed. The potential of this procedure is demonstrated through application to rutile-TiO2(110) and rutile-TiO2(011) substrates. Characterisation with atomic force microscopy, low energy electron diffraction, auger electron spectroscopy, and vibrational sum frequency spectroscopy indicates that flat, well-ordered, carbon-free surfaces can be generated. Notably, in contrast to the (2 × 1) low energy electron diffraction pattern observed for TiO2(011) prepared in ultra-high vacuum, wet chemical preparation results in a (4 × 1) unit cell; wet chemically prepared TiO2(110) displays an unreconstructed (1 × 1) surface.",

keywords = "Low miller index single crystal surface, Metal oxide, Surface composition, Surface structure, Wet chemical preparation",

author = "Ahmed, {M. H M} and Lydiatt, {F. P.} and D. Chekulaev and Wincott, {P. L.} and Vaughan, {D. J.} and Jang, {J. H.} and S. Baldelli and Thomas, {A. G.} and Walters, {W. S.} and R. Lindsay",

note = "M.H.M.A. acknowledges financial support from EPSRC through the Advanced Metallic Systems Centre for Doctoral Training and BP. F.P.L. thanks the National Nuclear Laboratory (NNL) and EPSRC for funding his PhD studentship. JHJ and SB appreciate support from the National Science Foundation (DMR-0856009)",

year = "2014",

doi = "10.1016/j.susc.2014.06.020",

language = "English",

volume = "630",

pages = "41--45",

journal = "Surface Science",

issn = "0039-6028",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - Wet chemically prepared rutile TiO2(110) and TiO2(011): Substrate preparation for surface studies under non-UHV conditions

AU - Ahmed, M. H M

AU - Lydiatt, F. P.

AU - Chekulaev, D.

AU - Wincott, P. L.

AU - Vaughan, D. J.

AU - Jang, J. H.

AU - Baldelli, S.

AU - Thomas, A. G.

AU - Walters, W. S.

AU - Lindsay, R.

N1 - M.H.M.A. acknowledges financial support from EPSRC through the Advanced Metallic Systems Centre for Doctoral Training and BP. F.P.L. thanks the National Nuclear Laboratory (NNL) and EPSRC for funding his PhD studentship. JHJ and SB appreciate support from the National Science Foundation (DMR-0856009)

PY - 2014

Y1 - 2014

N2 - © 2014 Elsevier B.V.A procedure for wet chemical preparation of TiO2 single crystal surfaces is detailed. The potential of this procedure is demonstrated through application to rutile-TiO2(110) and rutile-TiO2(011) substrates. Characterisation with atomic force microscopy, low energy electron diffraction, auger electron spectroscopy, and vibrational sum frequency spectroscopy indicates that flat, well-ordered, carbon-free surfaces can be generated. Notably, in contrast to the (2 × 1) low energy electron diffraction pattern observed for TiO2(011) prepared in ultra-high vacuum, wet chemical preparation results in a (4 × 1) unit cell; wet chemically prepared TiO2(110) displays an unreconstructed (1 × 1) surface.

AB - © 2014 Elsevier B.V.A procedure for wet chemical preparation of TiO2 single crystal surfaces is detailed. The potential of this procedure is demonstrated through application to rutile-TiO2(110) and rutile-TiO2(011) substrates. Characterisation with atomic force microscopy, low energy electron diffraction, auger electron spectroscopy, and vibrational sum frequency spectroscopy indicates that flat, well-ordered, carbon-free surfaces can be generated. Notably, in contrast to the (2 × 1) low energy electron diffraction pattern observed for TiO2(011) prepared in ultra-high vacuum, wet chemical preparation results in a (4 × 1) unit cell; wet chemically prepared TiO2(110) displays an unreconstructed (1 × 1) surface.

KW - Low miller index single crystal surface

KW - Metal oxide

KW - Surface composition

KW - Surface structure

KW - Wet chemical preparation

U2 - 10.1016/j.susc.2014.06.020

DO - 10.1016/j.susc.2014.06.020

M3 - Article

SN - 0039-6028

VL - 630

SP - 41

EP - 45

JO - Surface Science

JF - Surface Science

ER -

Wet chemically prepared rutile TiO2(110) and TiO2(011): Substrate preparation for surface studies under non-UHV conditions

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Keywords

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