Hybrid effect of doped and de-doped poly(3-methylthiophene) nanowires with CdSe/ZnS quantum dots: Nanoscale luminescence variation

Sunmi Lee, Youg Baek Lee, Sung Yeoun Park, Hyunsoo Lee, Jeongyong Kim, Kwang Sup Lee, Jinsoo Joo

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Doped and de-doped poly(3-methylthiophene) (P3MT) nanowires (NWs) were synthesized through electrochemical polymerization and functionalized CdSe/ZnS quantum dots (QDs) with blue and green emissions were homogeneously attached to the NW surfaces. The photoluminescence (PL) spectra of the QDs/P3MT single NWs indicated a drastic enhancement of PL intensity for both doped and de-doped NWs owing to the energy transfer effect from QDs to NWs. The QDs/de-doped P3MT NWs exhibited higher energy transfer efficiency because of a reduced screening effect for energy transfer, which was confirmed by a decrease in the exciton lifetime of the QDs, determined from time-resolved PL decay curves.

Original languageEnglish
Pages (from-to)22-26
Number of pages5
JournalSynthetic Metals
Volume164
Issue number1
DOIs
Publication statusPublished - 2013 Jan 28

Fingerprint

Semiconductor quantum dots
Nanowires
Luminescence
nanowires
quantum dots
luminescence
Energy transfer
Photoluminescence
energy transfer
photoluminescence
Electropolymerization
Excitons
poly(3-methylthiophene)
Screening
screening
polymerization
excitons
life (durability)
augmentation
decay

Keywords

  • CdSe/ZnS quantum dot
  • Energy transfer
  • Nanowire
  • Photoluminescence
  • Poly(3-methylthiophene)

ASJC Scopus subject areas

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

Cite this

Hybrid effect of doped and de-doped poly(3-methylthiophene) nanowires with CdSe/ZnS quantum dots : Nanoscale luminescence variation. / Lee, Sunmi; Lee, Youg Baek; Park, Sung Yeoun; Lee, Hyunsoo; Kim, Jeongyong; Lee, Kwang Sup; Joo, Jinsoo.

In: Synthetic Metals, Vol. 164, No. 1, 28.01.2013, p. 22-26.

Research output: Contribution to journalArticle

Lee, Sunmi ; Lee, Youg Baek ; Park, Sung Yeoun ; Lee, Hyunsoo ; Kim, Jeongyong ; Lee, Kwang Sup ; Joo, Jinsoo. / Hybrid effect of doped and de-doped poly(3-methylthiophene) nanowires with CdSe/ZnS quantum dots : Nanoscale luminescence variation. In: Synthetic Metals. 2013 ; Vol. 164, No. 1. pp. 22-26.
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AU - Lee, Kwang Sup

AU - Joo, Jinsoo

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