Semiconducting cross-linked polymer nanowires prepared by high-energy single-particle track reactions

Shu Seki, Akinori Saeki, Wookjin Choi, Yuta Maeyoshi, Masaki Omichi, Atsushi Asano, Kazuyuki Enomoto, Chakkooth Vijayakumar, Masaki Sugimoto, Satoshi Tsukuda, Shunichiro Tanaka

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


High-energy charged particle irradiation of cross-linking polymers gives nanowires formed by cross-linking reactions along the ion track trajectories. Here, the direct formation of nanowires consisting of a conjugated polymer by single-particle nanofabrication technique (SPNT) is investigated. Poly(9,9′-di-n-octylfluorene) (PFO), regioregular poly(3-hexylthiophene) (rrP3HT), and poly[2-methoxy-5-(2′-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) underwent an efficient cross-linking reaction upon irradiation, resulting in the formation of 1-dimensional nanostructures with high and desired aspect ratio reaching up to ∼200. The size of nanowires was perfectly interpreted by well-sophisticated theoretical aspects based on the statistical theory of polymer backbone configurations, suggesting that simple cross-linking reactions of the polymers determine the size and structure of nanowires. PFO based nanostructures exhibited sharp and intense emission with high fluorescence quantum yield indicating the absence of any significant inter/intra polymer chromophore interactions in the nanowires assemblies.

Original languageEnglish
Pages (from-to)12857-12863
Number of pages7
JournalJournal of Physical Chemistry B
Issue number42
Publication statusPublished - 2012 Oct 25

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry


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