Binary mixtures of self-assembled monolayers on SrTiO3: Experimental evidence for phase segregation

Kropman, Boike L. and Blank, Dave H.A. and Rogalla, Horst (2000) Binary mixtures of self-assembled monolayers on SrTiO3: Experimental evidence for phase segregation. Langmuir, 16 (4). pp. 1469-1472. ISSN 07437463

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Abstract:	The formation of monolayers from mixed solutions of alkylsiloxane molecules on the surface of SrTiO3 has been studied. The monolayers were formed by self-assembly from dilute n-hexadecane solutions of two binary mixtures of long- and short-chain alkyltrichlorosilanes. These films have been studied by atomic and lateral force microscopy and wettability measurements. One mixture showed evidence of phase segregation on the vicinal surface of a SrTiO3 (001) crystal. The long-chain molecules are found to preferably adsorb at or migrate toward the step ledge, probably to increase their van der Waals interaction and minimize the surface free energy.
Item Type:	Article
Copyright:	© 2000 American Chemical Society
Faculty:	Science and Technology (TNW)
Research Group:	Inorganic Materials Science (IMS) Low Temperatures - Biomagnetism (LT)
Link to this item:	http://purl.utwente.nl/publications/23987
Official URL:	http://dx.doi.org/10.1021/la990281s
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