DOI: 10.1063/1.2756842. Spectroscopy of ultrathin epitaxial rutile TiO2(110) films grown on W(100)

Spectroscopy of ultrathin epitaxial rutile TiO2(110) films grown on W(100)

10.1063/1.2756842

Crossref journal-article

AIP Publishing

The Journal of Chemical Physics (317)

Abstract

Epitaxial ultrathin titanium dioxide films of 0.3to∼7nm thickness on a metal single crystal substrate have been investigated by high resolution vibrational and electron spectroscopies. The data complement previous morphological data provided by scanned probe microscopy and low energy electron diffraction to provide very complete characterization of this system. The thicker films display electronic structure consistent with a stoichiometric TiO2 phase. The thinner films appear nonstoichiometric due to band bending and charge transfer from the metal substrate, while work function measurements also show a marked thickness dependence. The vibrational spectroscopy shows three clear phonon bands at 368, 438, and 829cm−1 (at 273K), which confirms a rutile structure. The phonon band intensity scales linearly with film thickness and shift slightly to lower frequencies with increasing temperature, in accord with results for single crystals.

Bibliography

Bennett, R. A., Mulley, J. S., Newton, M. A., & Surman, M. (2007). Spectroscopy of ultrathin epitaxial rutile TiO2(110) films grown on W(100). The Journal of Chemical Physics, 127(8).

Authors 4

R. A. Bennett (first)
J. S. Mulley (additional)
M. A. Newton (additional)
M. Surman (additional)

References 45 Referenced 18

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Dates

Type	When
Created	17 years, 11 months ago (Aug. 30, 2007, 6:06 p.m.)
Deposited	2 years ago (July 31, 2023, 6:25 p.m.)
Indexed	3 weeks, 4 days ago (July 30, 2025, 6:49 a.m.)
Issued	17 years, 11 months ago (Aug. 28, 2007)
Published	17 years, 11 months ago (Aug. 28, 2007)
Published Online	17 years, 11 months ago (Aug. 30, 2007)
Published Print	17 years, 11 months ago (Aug. 28, 2007)

Funders 0

None

BibTeX

@article{Bennett_2007, title={Spectroscopy of ultrathin epitaxial rutile TiO2(110) films grown on W(100)}, volume={127}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.2756842}, DOI={10.1063/1.2756842}, number={8}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Bennett, R. A. and Mulley, J. S. and Newton, M. A. and Surman, M.}, year={2007}, month=aug }

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