Covalent Surface Modification of Oxide Surfaces. Issue 25 (21st May 2014)

• Record Type: Journal Article
• Authors: Pujari, Sidharam P.; Scheres, Luc; Marcelis, Antonius T. M.; Zuilhof, Han
• Is Part Of: Angewandte Chemie international edition. Volume 53:Issue 25(2014)
• Page Start: 6322
• Page End: 6356
• Publication Date: 2014-05-21
• Subjects: covalent bonds -- monolayers -- oxides -- reaction mechanisms -- surface chemistry; Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201306709
• Languages: English
• ISSNs: 1433-7851

Abstract

Abstract: The modification of surfaces by the deposition of a robust overlayer provides an excellent handle with which to tune the properties of a bulk substrate to those of interest. Such control over the surface properties becomes increasingly important with the continuing efforts at down‐sizing the active components in optoelectronic devices, and the corresponding increase in the surface area/volume ratio. Relevant properties to tune include the degree to which a surface is wetted by water or oil. Analogously, for biosensing applications there is an increasing interest in so‐called "romantic surfaces": surfaces that repel all biological entities, apart from one, to which it binds strongly. Such systems require both long lasting and highly specific tuning of the surface properties. This Review presents one approach to obtain robust surface modifications of the surface of oxides, namely the covalent attachment of monolayers. Abstract : Not just scratching the surface : Covalently attached monolayers on oxide surfaces are reviewed with an eye to improved robustness, increased functionalization, understanding structural details, and the resulting potential for applications. Such monolayers, provided they are robust enough, provide a way of improving the properties of the bulk oxide material.