Chemical surface reactions by click chemistry: coumarin dye modification of 11-bromoundecyltrichlorosilane monolayers
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Haensch, Claudia; Höppener, Stephanie; Schubert, Ulrich S.
- Abstract:
- The functionalization of surfaces and the ability to tailor their properties with desired
physico-chemical functions is an important field of research with a broad spectrum of
applications. These applications range from the modification of wetting properties, over the
alteration of optical properties, to the fabrication of molecular electronic devices. In each of
these fields, it is of specific importance to be able to control the quality of the layers with high
precision. The present study demonstrates an approach that utilizes the 1,3-dipolar
cycloaddition of terminal acetylenes to prepare triazole-terminated monolayers on different
substrates. The characterization of the precursor monolayers, the optimization of the chemical
surface reactions as well as the clicking of a fluorescent dye molecule on such azide-terminated
monolayers was carried out. A coumarin 343 derivative was utilized to discuss the aspects of
the functionalization approach. Based on this approach, a number of potential surface reactions,
facilitated via the acetylene-substituted functional molecules, for a broad range of applications
is at hand, thus leading to numerous possibilities where surface modifications are concerned.
These modifications can be applied on non-structured surfaces of silicon or glass or can be used
on structured surfaces. Various possibilities are discussed.
- Year:
- 2008
- Type of Publication:
- Article
- Journal:
- Nanotechnology
- Volume:
- 19
- Pages:
- 035703/1 - 035703/7