Light-emitting color barcode nanowires using polymers: Nanoscale optical characteristics

Dong Hyuk Park, Young Ki Hong, Eun Hei Cho, Mi Suk Kim, Dae Chul Kim, Jihee Bang, Jeongyong Kim, Jinsoo Joo

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

We report on the light-emitting color barcode nanowires (LECB-NWs), which were fabricated by alternating the electrochemical polymerization of light-emitting polymers with various luminescence colors and efficiencies. The nanoscale photoluminescence characteristics of LECB-NWs were investigated using a laser confocal microscope with a high spatial resolution. The alternating light emissions of the LECB-NWs showed orange-yellow, red, and green colors due to the serial combination of poly(3-butylthiophene), poly(3-methylthiophene), and poly(3,4-ethylenedioxythiophene), respectively, with distinct luminescence intensities. The optical detection sensitivity and stability of LECB-NWs have been enhanced through a nanoscale Cu metal coating onto the NWs, based on surface plasmon resonance coupling and protection against oxidation. The flexibility of the LECB-NWs has been investigated through the folding and unfolding of the NWs by an applied nanotip impetus. The flexible LECB-NWs can be used as highly sensitive optical identification nanosystems for nanoscale or microscale products with complex physical shapes.

Original languageEnglish
Pages (from-to)5155-5162
Number of pages8
JournalACS nano
Volume4
Issue number9
DOIs
Publication statusPublished - 2010 Sep 28

Keywords

  • barcode
  • hybrid nanomaterial
  • light-emitting polymer
  • nanoscale optical characteristics
  • nanowire

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

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  • Cite this

    Park, D. H., Hong, Y. K., Cho, E. H., Kim, M. S., Kim, D. C., Bang, J., Kim, J., & Joo, J. (2010). Light-emitting color barcode nanowires using polymers: Nanoscale optical characteristics. ACS nano, 4(9), 5155-5162. https://doi.org/10.1021/nn101096m