Istituto per la Microelettronica e Microsistemi     
Accorsi G., Armaroli N., Parisini A., Meneghetti M., Marea R., Prato M., Bonifazi D. Wet absorption of a Eu(III)-complex on Carbon Nanotubes Sidewwalls. In: Advanced Functional Materials, vol. 17 (15) pp. 2975 - 2982. John Wiley & Sons, 2007.
A Eu-III complex, tris-dibenzoylmethane mono-1,10-phenanthroline-europium(III) [Eu(DBM)(3)(Phen)], can be easily adsorbed If in situ via hydrophobic interactions to single-walled carbon nanotube (SWNT) surfaces from a methanol solution. The Eu-III containing material has been comprehensively characterized via thermogravimetric analysis (TGA), UV-vis-NIR absorption and luminescence spectroscopy, Raman spectroscopy, atomic force microscopy (AFM), high-resolution transmission electron microscopy (HR-TEM)), Z-contrast scanning transmission electron microscopy (STEM) imaging, and energy dispersive X-ray spectroscopy (EDS). The photophysical investigations revealed that the presence of a SWNT framework does not affect the lanthanide-centered luminescence stemming from the characteristic electronic transitions within the 4f shell of the Eu-III, ions. Such straightforward synthetic route leads to the preparation of luminescent SWNTs without significantly affecting t he electronic and structural properties of the carbon framework, opening new possibilities of designing new classes of CNTs for biomedical applications.
DOI: 10.1002/adfm.200600696
Subject Adsorption
Carbon nanotubes, single-walled

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