Photoluminescence Characteristics for Hybrid Nanotubes of Light Emitting Poly(3-methylthiophene) Coated with Copper: Fluorescence Effect
- Authors
- Park, Dong Hyuk; Jeong, Mi-Yun; Kim, Mikyung; Cho, Eun Hei; Kim, Dae-Chul; Song, Hugeun; Kim, Jeongyong; Shim, Tae Kyu; Kim, Doseok; Joo, Jinsoo
- Issue Date
- 5월-2009
- Publisher
- AMER SCIENTIFIC PUBLISHERS
- Keywords
- Hybrid Nanotube; Poly(3-methylthiophene); Photoluminescence; Quantum Yield; Surface Plasmon; Confocal Microscope
- Citation
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.9, no.5, pp.3112 - 3118
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
- Volume
- 9
- Number
- 5
- Start Page
- 3112
- End Page
- 3118
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/120160
- DOI
- 10.1166/jnn.2009.019
- ISSN
- 1533-4880
- Abstract
- The enhanced nanometer-scale photoluminescence (PL) and quantum yield of hybrid double layered nanotubes (HDLNTs) consisting of a light-emitting poly(3-methylthiophene) (P3MT) nanotube coated with nanometer-scale copper (Cu) metal were observed and presented. The HDLNTs of the Cu coated P3MT (P3MT/Cu) were synthesized through a sequential electrochemical synthetic method in an anodic alumina oxide (Al2O3) nanoporous template. We confirmed that the Cu nanotubes were covered outside the light emitting P3MT nanotubes based a high resolution transmission electron microscope image. From laser confocal microscope (LCM) PL experiments of an isolated single strand of the P3MT nanotubes and of their HDLNTs, we observed a similar to 100 times enhancement of the PL peak intensity for the HDLNTs of P3MT/Cu compared to that of the P3MT single nanotube, which was qualitatively confirmed through the measurement of the quantum yield. The energy and/or charge transfer effects in surface plasmon resonance contributed to the larger enhancement of the PL efficiency of the hybrid P3MT/Cu nanotubes. The PL decay life-time of the excitons of the P3MT nanotubes using a time resolved PL was not changed after the formation of the HDLNTs, implying that the PL enhancement of the hybrid nanotubes might have originated from fluorescence, not phosphorescence.
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