Wet adsorption of a luminescent EuIII complex on carbon nanotubes sidewalls

Gianluca Accorsi, Nicola Armaroli, Andrea Parisini, Moreno Meneghetti, Riccardo Marega, Maurizio Prato, Davide Bonifazi

Research output: Contribution to journalArticlepeer-review


A EuIII complex, tris-dibenzoylmethane mono-1,10-phenanthroline- europium(III) [Eu(DBM)3(Phen)], can be easily adsorbed in situ via hydrophobic interactions to single-walled carbon nanotube (SWNT) surfaces from a methanol solution. The EuIII 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 EuIII ions. Such straightforward synthetic route leads to the preparation of luminescent SWNTs without significantly affecting the electronic and structural properties of the carbon framework, opening new possibilities of designing new classes of CNTs for biomedical applications.

Original languageEnglish
Pages (from-to)2975-2982
Number of pages8
JournalAdvanced functional materials
Issue number15
Publication statusPublished - 15 Oct 2007


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