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Nanoscale photoluminescence of light-emitting poly (3-methylthiophene) nanotubes hybridized with Au nanoparticles
- Authors
- Park, Dong Hyuk; Hong, Young Ki; Kim, Mi Sul; Cho, Eun Hei; Choi, Won Jun; Kim, Kyung Ho; Park, Q. -Han; Kim, Dae-Chul; Song, Hugeun; Kim, Jeongyong; Joo, Jinsoo
- Issue Date
- 4월-2010
- Publisher
- ELSEVIER SCIENCE SA
- Keywords
- Hybrid nanotube; Poly (3-methylthiophene); Au nanoparticle; Laser confocal microscope; Photoluminescence; Surface plasmon resonance; Local field enhancement
- Citation
- SYNTHETIC METALS, v.160, no.7-8, pp.604 - 608
- Indexed
- SCIE
SCOPUS
- Journal Title
- SYNTHETIC METALS
- Volume
- 160
- Number
- 7-8
- Start Page
- 604
- End Page
- 608
- ISSN
- 0379-6779
- Abstract
- 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 similar to 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. (C) 2009 Elsevier B.V. All rights reserved.
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