Abstract
In the present study, our aim was to prepare and characterize 11-mercaptoundecanoic acid (11-MUA) films on polycrystalline Au-foils grown by physical vapor deposition (PVD) in ultra high vacuum (UHV). When preparing the SAMs by PVD in a UHV chamber, one profits from well defined conditions and exclusion of the influence of air. The Au-samples were cleaned in UHV by Ar-sputtering. In order to characterize the 11-MUA films, mainly thermal desorption spectroscopy (TDS) was applied. TDS measurements revealed monolayer and multilayer desorption. A variety of different masses was observed when desorbing the 11-MUA from the Au-surface. This showed on the one hand the cracking pattern of this molecule in the quadrupole mass spectrometer (QMS) and on the other hand that reactions took place during the adsorption/desorption process. Of particular interest was the question as to the Au-S and the C-S bond breaking.
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Frank, P., Nussbacher, F., Stettner, J., Winkler, A. (2009). SAMs of 11-MUA grown on polycrystalline Au-foils by physical vapor deposition in UHV. In: Al-Shamery, K., Horowitz, G., Sitter, H., Rubahn, HG. (eds) Interface Controlled Organic Thin Films. Springer Proceedings in Physics, vol 129. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-95930-4_18
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DOI: https://doi.org/10.1007/978-3-540-95930-4_18
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