Frederich N1, Nysten B, Muls B, Hofkens J, Habib Jiwan JL, Jonas AM.
Photochem Photobiol Sci. 2008 Apr;7(4):460-6. doi: 10.1039/b717309a. Epub 2008 Feb 4.We report on the grafting of coumarin chromophores on flat silicon surfaces and in regions of nanometric dimensions drawn on silicon surfaces. The coumarin derivative was grafted by using the quaternization of a tertiary amine group of the chromophore with a ((chloromethyl)phenylethyl)-dimethylchlorosilane (CMPDCS) grafted on silicon. Complete characterization of the grafted layer was performed as a function of reaction time by X-ray photoelectron spectroscopy, X-ray reflectometry, atomic force microscopy, fluorescence spectroscopy and laser-scanning confocal microscopy. Read More