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Issue 13, 2010
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Revealing the buried interface: para-sexiphenyl thin films grown on TiO2(110)

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Abstract

The thickness dependent optical and electronic structure of para-sexiphenyl thin films grown on TiO2(110) at around 400 K reveals that the substrate is first wet by one monolayer of molecules lying with their long axis parallel to the [001] direction of the substrate, while the molecules in subsequent layers are almost standing upright. Whilst ultraviolet photoemission spectroscopy (UPS) is sensitive to the molecules in the outermost layer, reflection difference spectroscopy (RDS) shows that the molecules at the buried interface do not dewet and maintain the orientation of the original wetting monolayer.

Graphical abstract: Revealing the buried interface: para-sexiphenyl thin films grown on TiO2(110)

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Article information


Submitted
26 Oct 2009
Accepted
11 Jan 2010
First published
10 Feb 2010

Phys. Chem. Chem. Phys., 2010,12, 3141-3144
Article type
Paper

Revealing the buried interface: para-sexiphenyl thin films grown on TiO2(110)

L. Sun, S. Berkebile, G. Weidlinger, G. Koller, M. Hohage, F. P. Netzer, M. G. Ramsey and P. Zeppenfeld, Phys. Chem. Chem. Phys., 2010, 12, 3141 DOI: 10.1039/B922285E

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