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

doi:10.1016/j.synthmet.2012.12.025

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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;
... Joo, Jinsoo;
외 1명

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초록

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. (C) 2012 Elsevier B.V. All rights reserved.

키워드

Poly(3-methylthiophene); Nanowire; CdSe/ZnS quantum dot; Energy transfer; Photoluminescence; ENERGY-TRANSFER; CONJUGATED POLYMERS; OPTICAL-PROPERTIES; PHOTOLUMINESCENCE; NANOTUBES

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

저자: Lee, Sunmi; Lee, Youg-baek; Park, Sung-yeoun; Lee, Hyunsoo; Kim, Jeongyong; Lee, Kwang-Sup; Joo, Jinsoo

DOI: 10.1016/j.synthmet.2012.12.025

발행일: 2013-01-15

유형: Article

저널명: Synthetic Metals

권: 164

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