Complex nanoparticle of light-emitting MEH-PPV with Au: Enhanced luminescence

Mi Suk Kim; Dong Hyuk Park; Eun Hei Cho; Kyoung Ho Kim; Q. Han Park; Hugeun Song; Dae Chul Kim; Jeongyong Kim; Jinsoo Joo

doi:10.1021/nn900071w

Complex nanoparticle of light-emitting MEH-PPV with Au: Enhanced luminescence

Mi Suk Kim, Dong Hyuk Park, Eun Hei Cho, Kyoung Ho Kim, Q. Han Park, Hugeun Song, Dae Chul Kim, Jeongyong Kim, Jinsoo Joo

Department of Physics

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

49 Citations (Scopus)

Abstract

Complex nanoparticles (NPs) of poly(2-methoxy-5-(2'-ethylhexyloxy)-p- phenylene vinylene) (MEH-PPV) NP adsorbed with Au NPs (MEH-PPV/Au NPs) were fabricated through a reprecipitation method. The formation of MEH-PPV/Au NP complexes was confirmed through high-resolution transmission electron microscopy and Fourier transform infrared experiments. The laser confocal microscope photoluminescence (PL) efficiency of the complex MEH-PPV/Au single NP dramatically increased compared with that of the MEH-PPV single NP without Au NPs, which was directly confirmed through color charge-coupled device images. The enhanced PL efficiency of the MEH-PPV/Au NP complex might have originated from the energy transfer effect in a surface plasmon resonance coupling between a MEH-PPV NP and Au NPs. The strong local field enhancement due to nanogaps between Au NPs in the background of a light-emitting MEH-PPV NP might be another origin of the PL enhancement of the NP complex, as supported by finite difference time domain calculations. We also observed the blue shift of the PL peaks of the single MEH-PPV and MEH-PPV/Au NP, compared with the solution PL peaks of those NPs.

Original language	English
Pages (from-to)	1329-1334
Number of pages	6
Journal	ACS nano
Volume	3
Issue number	6
DOIs	https://doi.org/10.1021/nn900071w
Publication status	Published - 2009 Jun 23

Keywords

Au
MEH-PPV
Nanoparticle
Photoluminescence
Surface plasmon

ASJC Scopus subject areas

Materials Science(all)
Engineering(all)
Physics and Astronomy(all)

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10.1021/nn900071w

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title = "Complex nanoparticle of light-emitting MEH-PPV with Au: Enhanced luminescence",

abstract = "Complex nanoparticles (NPs) of poly(2-methoxy-5-(2'-ethylhexyloxy)-p- phenylene vinylene) (MEH-PPV) NP adsorbed with Au NPs (MEH-PPV/Au NPs) were fabricated through a reprecipitation method. The formation of MEH-PPV/Au NP complexes was confirmed through high-resolution transmission electron microscopy and Fourier transform infrared experiments. The laser confocal microscope photoluminescence (PL) efficiency of the complex MEH-PPV/Au single NP dramatically increased compared with that of the MEH-PPV single NP without Au NPs, which was directly confirmed through color charge-coupled device images. The enhanced PL efficiency of the MEH-PPV/Au NP complex might have originated from the energy transfer effect in a surface plasmon resonance coupling between a MEH-PPV NP and Au NPs. The strong local field enhancement due to nanogaps between Au NPs in the background of a light-emitting MEH-PPV NP might be another origin of the PL enhancement of the NP complex, as supported by finite difference time domain calculations. We also observed the blue shift of the PL peaks of the single MEH-PPV and MEH-PPV/Au NP, compared with the solution PL peaks of those NPs.",

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author = "Kim, {Mi Suk} and Park, {Dong Hyuk} and Cho, {Eun Hei} and Kim, {Kyoung Ho} and Park, {Q. Han} and Hugeun Song and Kim, {Dae Chul} and Jeongyong Kim and Jinsoo Joo",

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T2 - Enhanced luminescence

AU - Kim, Mi Suk

AU - Park, Dong Hyuk

AU - Cho, Eun Hei

AU - Kim, Kyoung Ho

AU - Park, Q. Han

AU - Song, Hugeun

AU - Kim, Dae Chul

AU - Kim, Jeongyong

AU - Joo, Jinsoo

PY - 2009/6/23

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N2 - Complex nanoparticles (NPs) of poly(2-methoxy-5-(2'-ethylhexyloxy)-p- phenylene vinylene) (MEH-PPV) NP adsorbed with Au NPs (MEH-PPV/Au NPs) were fabricated through a reprecipitation method. The formation of MEH-PPV/Au NP complexes was confirmed through high-resolution transmission electron microscopy and Fourier transform infrared experiments. The laser confocal microscope photoluminescence (PL) efficiency of the complex MEH-PPV/Au single NP dramatically increased compared with that of the MEH-PPV single NP without Au NPs, which was directly confirmed through color charge-coupled device images. The enhanced PL efficiency of the MEH-PPV/Au NP complex might have originated from the energy transfer effect in a surface plasmon resonance coupling between a MEH-PPV NP and Au NPs. The strong local field enhancement due to nanogaps between Au NPs in the background of a light-emitting MEH-PPV NP might be another origin of the PL enhancement of the NP complex, as supported by finite difference time domain calculations. We also observed the blue shift of the PL peaks of the single MEH-PPV and MEH-PPV/Au NP, compared with the solution PL peaks of those NPs.

AB - Complex nanoparticles (NPs) of poly(2-methoxy-5-(2'-ethylhexyloxy)-p- phenylene vinylene) (MEH-PPV) NP adsorbed with Au NPs (MEH-PPV/Au NPs) were fabricated through a reprecipitation method. The formation of MEH-PPV/Au NP complexes was confirmed through high-resolution transmission electron microscopy and Fourier transform infrared experiments. The laser confocal microscope photoluminescence (PL) efficiency of the complex MEH-PPV/Au single NP dramatically increased compared with that of the MEH-PPV single NP without Au NPs, which was directly confirmed through color charge-coupled device images. The enhanced PL efficiency of the MEH-PPV/Au NP complex might have originated from the energy transfer effect in a surface plasmon resonance coupling between a MEH-PPV NP and Au NPs. The strong local field enhancement due to nanogaps between Au NPs in the background of a light-emitting MEH-PPV NP might be another origin of the PL enhancement of the NP complex, as supported by finite difference time domain calculations. We also observed the blue shift of the PL peaks of the single MEH-PPV and MEH-PPV/Au NP, compared with the solution PL peaks of those NPs.

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Complex nanoparticle of light-emitting MEH-PPV with Au: Enhanced luminescence

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Keywords

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