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Supramolecular Hybrid of Metal Nanoparticles and Semiconducting Single‐Walled Carbon Nanotubes Wrapped by a Fluorene–Carbazole Copolymer
Author(s) -
Ozawa Hiroaki,
Ide Natsuko,
Fujigaya Tsuyohiko,
Niidome Yasuro,
Nakashima Naotoshi
Publication year - 2011
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201101669
Subject(s) - carbon nanotube , materials science , copolymer , supramolecular chirality , fluorene , carbazole , chirality (physics) , nanoparticle , alkyl , raman spectroscopy , nanotube , nanotechnology , polymer chemistry , supramolecular chemistry , photoluminescence , photochemistry , chemical engineering , polymer , organic chemistry , molecule , chemistry , composite material , optoelectronics , quantum mechanics , chiral symmetry breaking , physics , engineering , quark , nambu–jona lasinio model , optics
The first approach for the preparation of metal nanoparticle/semiconducting single‐walled carbon nanotube (SWNT) hybrids with specified chirality is described. For this purpose, a copolymer of a fluorene derivative with two long‐chain alkyl substituents and a carbazole derivative carrying a thiol group was used. The copolymer was found to selectively dissolve (7,6)‐ and (8,7)SWNTs, as determined by UV/Vis/NIR absorption and Raman spectroscopy and 2D photoluminescence mapping. Gold and silver nanoparticles with diameters of about 3.8 and about 3.2 nm, respectively, were readily attached along the SWNTs by means of coordination bonds between the nanoparticles and the thiol moieties on the copolymer, as revealed by atomic force and electron microscopy studies. The study provides a novel way to design and fabricate metal nanoparticle/semiconducting SWNT hybrids with specific nanotube chirality.