Facile decoration of functionalized single-wall carbon nanotubes with phthalocyanines via "click chemistry".
We describe the functionalization of single-wall carbon nanotubes (SWNTs) with 4-(2-trimethylsilyl)ethynylaniline and the subsequent attachment of a zinc-phthalocyanine (ZnPc) derivative using the reliable Huisgen 1,3-dipolar cycloaddition. The motivation of this study was the preparation of a nanotube-based platform which allows the facile fabrication of more complex functional nanometer-scale structures, such as a SWNT-ZnPc hybrid. The nanotube derivatives described here were fully characterized by a combination of analytical techniques such as Raman, absorption and emission spectroscopy, atomic force and scanning electron microscopy (AFM and SEM), and thermogravimetric analysis (TGA). The SWNT-ZnPc nanoconjugate was also investigated with a series of steady-state and time-resolved spectroscopy experiments, and a photoinduced communication between the two photoactive components (i.e., SWNT and ZnPc) was identified. Such beneficial features lead to monochromatic internal photoconversion efficiencies of 17.3% when the SWNT-ZnPc hybrid material was tested as photoactive material in an ITO photoanode.
Campidelli
Stéphane
S
Laboratoire d'Electronique Moleculaire, DSM/IRAMIS/SPEC (CNRS URA 2464), CEA Saclay, F-91191 Gif sur Yvette Cedex, France. stephane.campidelli@cea.fr
Ballesteros
Beatriz
B
Filoramo
Arianna
A
Díaz
David Díaz
DD
de la Torre
Gema
G
Torres
Tomás
T
Rahman
G M Aminur
GM
Ehli
Christian
C
Kiessling
Daniel
D
Werner
Fabian
F
Sgobba
Vito
V
Guldi
Dirk M
DM
Cioffi
Carla
C
Prato
Maurizio
M
Bourgoin
Jean-Philippe
JP
D001672:Biocompatible Materials / Q000138:chemical synthesis*; D007211:Indoles / Q000737:chemistry*; D054833:Isoindoles; D008422:Materials Testing; D018625:Microscopy, Atomic Force; D046529:Microscopy, Electron, Transmission; D036103:Nanotechnology / Q000379:methods*; D037742:Nanotubes, Carbon / Q000737:chemistry*; D009942:Organometallic Compounds / Q000737:chemistry*; D010777:Photochemistry; D013059:Spectrum Analysis, Raman; D013499:Surface Properties; D017967:Zinc Compounds
D001672:Biocompatible Materials; D007211:Indoles; D054833:Isoindoles; D037742:Nanotubes, Carbon; D009942:Organometallic Compounds; D017967:Zinc Compounds; C052159:Zn(II)-phthalocyanine