Fabrication of nanobeads from nanocups by controlling scission/crosslinking in organic polymer materials

Tomoko Gowa Oyama, Akihiro Oshima, Masakazu Washio, Seiichi Tagawa

    Research output: Contribution to journalArticle

    4 Citations (Scopus)

    Abstract

    The development of several kinds of micro/nanofabrication techniques has resulted in many innovations in the micro/nanodevices that support today's science and technology. With feature miniaturization, the fabrication tools have shifted from light to ionizing radiation. Here, we propose a simple micro/nanofabrication technique for organic materials using a scanning beam (SB) of ionizing radiation. By controlling the scission/crosslinking of the material via three-dimensional energy-deposition distribution of the SB, appropriate solvents can easily peel off only the crosslinked region from the bulk material. The technique was demonstrated using a focused ion beam and a chlorinated organic polymer. The polymer underwent main-chain scission upon irradiation, but it crosslinked after high-dose irradiation. Appropriate solvents could easily peel off only the crosslinked region from the bulk material. The technique, 'nanobead from nanocup', enabled the production of desired structures such as nanowires and nanomembranes. It can be also applied to the micro/nanofabrication of functional materials.

    Original languageEnglish
    Article number495307
    JournalNanotechnology
    Volume23
    Issue number49
    DOIs
    Publication statusPublished - 2012 Dec 14

    Fingerprint

    Organic polymers
    Crosslinking
    Nanotechnology
    Fabrication
    Ionizing radiation
    Irradiation
    Scanning
    Functional materials
    Focused ion beams
    Dosimetry
    Nanowires
    Polymers
    Innovation

    ASJC Scopus subject areas

    • Bioengineering
    • Chemistry(all)
    • Electrical and Electronic Engineering
    • Mechanical Engineering
    • Mechanics of Materials
    • Materials Science(all)

    Cite this

    Fabrication of nanobeads from nanocups by controlling scission/crosslinking in organic polymer materials. / Oyama, Tomoko Gowa; Oshima, Akihiro; Washio, Masakazu; Tagawa, Seiichi.

    In: Nanotechnology, Vol. 23, No. 49, 495307, 14.12.2012.

    Research output: Contribution to journalArticle

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