Supramolecular hybrid of metal nanoparticles and semiconducting single-walled carbon nanotubes wrapped by a fluorene-carbazole copolymer

Hiroaki Ozawa, Natsuko Ide, Tsuyohiko Fujigaya, Yasuro Niidome, Naotoshi Nakashima

    Research output: Contribution to journalArticlepeer-review

    14 Citations (Scopus)

    Abstract

    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 3.2nm, 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. Take the tube: Selective solubilization of semiconducting single-walled carbon nanotubes (SWNTs) was achieved by wrapping them in a fluorene-carbazole copolymer. The extracted (7,6)- and (8,7)SWNTs were modified by metal nanoparticles (NPs) to fabricate metal NP/copolymer/semiconducting SWNT nanohybrids (see figure).

    Original languageEnglish
    Pages (from-to)13438-13444
    Number of pages7
    JournalChemistry - A European Journal
    Volume17
    Issue number48
    DOIs
    Publication statusPublished - Nov 25 2011

    All Science Journal Classification (ASJC) codes

    • Catalysis
    • Chemistry(all)
    • Organic Chemistry

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