Semiconducting single-walled carbon nanotubes sorting with a removable solubilizer based on dynamic supramolecular coordination chemistry

Fumiyuki Toshimitsu, Naotoshi Nakashima

    Research output: Contribution to journalArticlepeer-review

    99 Citations (Scopus)

    Abstract

    Highly pure semiconducting single-walled carbon nanotubes (SWNTs) are essential for the next generation of electronic devices, such as field-effect transistors and photovoltaic applications; however, contamination by metallic SWNTs reduces the efficiency of their associated devices. Here we report a simple and efficient method for the separation of semiconducting- and metallic SWNTs based on supramolecular complex chemistry. We here describe the synthesis of metal-coordination polymers (CP-Ms) composed of a fluorene-bridged bis-phenanthroline ligand and metal ions. On the basis of a difference in the 'solubility product' of CP-M-solubilized semiconducting SWNTs and metallic SWNTs, we readily separated semiconducting SWNTs. Furthermore, the CP-M polymers on the SWNTs were simply removed by adding a protic acid and inducing depolymerization to the monomer components. We also describe molecular mechanics calculations to reveal the difference of binding and wrapping mode between CP-M/semiconducting SWNTs and CP-M/metallic SWNTs. This study opens a new stage for the use of such highly pure semiconducting SWNTs in many possible applications.

    Original languageEnglish
    Article number5041
    JournalNature communications
    Volume5
    DOIs
    Publication statusPublished - Feb 2015

    All Science Journal Classification (ASJC) codes

    • General Chemistry
    • General Biochemistry,Genetics and Molecular Biology
    • General Physics and Astronomy

    Fingerprint

    Dive into the research topics of 'Semiconducting single-walled carbon nanotubes sorting with a removable solubilizer based on dynamic supramolecular coordination chemistry'. Together they form a unique fingerprint.

    Cite this