Nanoscale photoluminescence of light-emitting poly (3-methylthiophene) nanotubes hybridized with Au nanoparticles

Dong Hyuk Park, Young Ki Hong, Mi Suk Kim, Eun Hei Cho, Won Jun Choi, Kyung Ho Kim, Q. Han Park, Dae Chul Kim, Hugeun Song, Jeongyong Kim, Jinsoo Joo

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


We reported on the fabrication and nanoscale luminescence characteristics of the hybrid nanotubes (NTs) of light-emitting poly (3-methylthiophene) (P3MT) NT with gold (Au) nanoparticles (NPs) (P3MT/Au-NPs). After hybridizing the Au-NPs onto the surface of P3MT NTs, the light-emitting color of P3MT NTs was dramatically changed from a green to a bright red. From laser confocal microscope photoluminescence (PL) experiments for an isolated single strand of the NTs, we observed a ∼220 times enhancement of the PL peak intensity for the hybrid NT of P3MT/Au-NPs compared to that of the P3MT single NT. The enhancement PL efficiency of the hybrid NT of P3MT/Au-NPs can be explained in terms of a surface plasmon resonance (SPR) and nanoscale local electric field enhancement effects.

Original languageEnglish
Pages (from-to)604-608
Number of pages5
JournalSynthetic Metals
Issue number7-8
Publication statusPublished - 2010 Apr


  • Au nanoparticle
  • Hybrid nanotube
  • Laser confocal microscope
  • Local field enhancement
  • Photoluminescence
  • Poly (3-methylthiophene)
  • Surface plasmon resonance

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry


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