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

doi:10.1016/j.synthmet.2012.12.025

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

Department of Physics

Research output: Contribution to journal › Article › peer-review

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 language	English
Pages (from-to)	22-26
Number of pages	5
Journal	Synthetic Metals
Volume	164
Issue number	1
DOIs	https://doi.org/10.1016/j.synthmet.2012.12.025
Publication status	Published - 2013

Keywords

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

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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10.1016/j.synthmet.2012.12.025

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

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.",

keywords = "CdSe/ZnS quantum dot, Energy transfer, Nanowire, Photoluminescence, Poly(3-methylthiophene)",

author = "Sunmi Lee and Lee, {Youg Baek} and Park, {Sung Yeoun} and Hyunsoo Lee and Jeongyong Kim and Lee, {Kwang Sup} and Jinsoo Joo",

note = "Funding Information: This work was supported by a Korea Science and Engineering Foundation (KOSEF) grant funded by the Korean government (MEST) (No. 2012R1A2A2A01045102 ). One of us, K.-S. Lee acknowledges the funding for this work from the Active Polymer Center for Patterned Integration (ERC R11-2007-050-01002-0) of the National Research Foundation of Korea and the Asian Office of Aerospace Research and Development ( F/A 2386-11-1-4043 ), USA. We also thank the Korea Basic Science Institute (KBSI) for the use of equipment for time-resolved fluorescence confocal microscopy and HR-S/TEM. Copyright: Copyright 2013 Elsevier B.V., All rights reserved.",

year = "2013",

doi = "10.1016/j.synthmet.2012.12.025",

language = "English",

volume = "164",

pages = "22--26",

journal = "Synthetic Metals",

issn = "0379-6779",

publisher = "Elsevier BV",

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T1 - Hybrid effect of doped and de-doped poly(3-methylthiophene) nanowires with CdSe/ZnS quantum dots

T2 - Nanoscale luminescence variation

AU - Lee, Sunmi

AU - Lee, Youg Baek

AU - Park, Sung Yeoun

AU - Lee, Hyunsoo

AU - Kim, Jeongyong

AU - Lee, Kwang Sup

AU - Joo, Jinsoo

N1 - Funding Information: This work was supported by a Korea Science and Engineering Foundation (KOSEF) grant funded by the Korean government (MEST) (No. 2012R1A2A2A01045102 ). One of us, K.-S. Lee acknowledges the funding for this work from the Active Polymer Center for Patterned Integration (ERC R11-2007-050-01002-0) of the National Research Foundation of Korea and the Asian Office of Aerospace Research and Development ( F/A 2386-11-1-4043 ), USA. We also thank the Korea Basic Science Institute (KBSI) for the use of equipment for time-resolved fluorescence confocal microscopy and HR-S/TEM. Copyright: Copyright 2013 Elsevier B.V., All rights reserved.

PY - 2013

Y1 - 2013

N2 - 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.

AB - 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.

KW - CdSe/ZnS quantum dot

KW - Energy transfer

KW - Nanowire

KW - Photoluminescence

KW - Poly(3-methylthiophene)

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

Abstract

Keywords

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