Case studies on the formation of chalcogenide self-assembled monolayers on surfaces and dissociative processes

Tong, Yongfeng and Jiang, Tingming and Bendounan, Azzedine and Harish, Makri Nimbegondi Kotresh and Giglia, Angelo and Kubsky, Stefan and Sirotti, Fausto and Pasquali, Luca and Sampath, Srinivasan and Esaulov, Vladimir A (2016) Case studies on the formation of chalcogenide self-assembled monolayers on surfaces and dissociative processes. In: BEILSTEIN JOURNAL OF NANOTECHNOLOGY, 7 . pp. 263-277.

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Abstract

This report examines the assembly of chalcogenide organic molecules on various surfaces, focusing on cases when chemisorption is accompanied by carbon-chalcogen atom-bond scission. In the case of alkane and benzyl chalcogenides, this induces formation of a chalcogenized interface layer. This process can occur during the initial stages of adsorption and then, after passivation of the surface, molecular adsorption can proceed. The characteristics of the chalcogenized interface layer can be significantly different from the metal layer and can affect various properties such as electron conduction. For chalcogenophenes, the carbon-chalcogen atombond breaking can lead to opening of the ring and adsorption of an alkene chalcogenide. Such a disruption of the pi-electron system affects charge transport along the chains. Awareness about these effects is of importance from the point of view of molecular electronics. We discuss some recent studies based on X-ray photoelectron spectroscopy that shed light on these aspects for a series of such organic molecules.

Item Type:	Journal Article
Publication:	BEILSTEIN JOURNAL OF NANOTECHNOLOGY
Publisher:	BEILSTEIN-INSTITUT
Additional Information:	Copy right for this article belongs to the BEILSTEIN-INSTITUT, TRAKEHNER STRASSE 7-9, FRANKFURT AM MAIN, 60487, GERMANY
Keywords:	copper; nickel; palladium; reactivity; selenol; selenophene; self-assembly; thiol; thiophene
Department/Centre:	Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited:	18 Mar 2016 10:34
Last Modified:	18 Mar 2016 10:34
URI:	http://eprints.iisc.ac.in/id/eprint/53393

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