Anisotropic Emission from Multilayered Plasmon Resonator Nanocomposites of Isotropic Semiconductor Quantum Dots

Özel, Tuncay; Nizamoğlu, Sedat; Sefünç, Mustafa; Samarskaya, Olga; Özel, İlkem Özge; Mutlugün, Evren; Lesnyak, Vladimir; Gaponik, Nikolai; Eychmüller, Alexander; Гапоненко, С. В.; Demir, Hilmi Volkan

doi:10.1021/nn1030324

Cited by 66 publications

(48 citation statements)

References 32 publications

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“…5,6 The near-field of the plasmonic structure can modify the emission of a fluorophore. [7][8][9][10][11][12] Depending on the plasmonic properties of the metallic nanoparticle (MNP) it can lead to quenching or enhancement of the fluorophore emission. The modified emission can be a consequence of many processes such as NRET to the MNP, scattering and absorption by the MNP, and changes in the emitter's radiative and nonradiative decay rates.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Theoretical Investigation of the Distance Dependence of Localized Surface Plasmon Coupled Förster Resonance Energy Transfer

et al. 2014

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The distance dependence of localized surface plasmon (LSP) coupled Förster resonance energy transfer (FRET) is experimentally and theoretically investigated using a trilayer structure composed of separated monolayers of donor and acceptor quantum dots with an intermediate Au nanoparticle layer. The dependence of the energy transfer efficiency, rate, and characteristic distance, as well as the enhancement of the acceptor emission, on the separations between the three constituent layers is examined. A d –4 dependence of the energy transfer rate is observed for LSP-coupled FRET between the donor and acceptor planes with the increased energy transfer range described by an enhanced Förster radius. The conventional FRET rate also follows a d –4 dependence in this geometry. The conditions under which this distance dependence is valid for LSP-coupled FRET are theoretically investigated. The influence of the placement of the intermediate Au NP is investigated, and it is shown that donor–plasmon coupling has a greater influence on the characteristic energy transfer range in this LSP-coupled FRET system. The LSP-enhanced Förster radius is dependent on the Au nanoparticle concentration. The potential to tune the characteristic energy transfer distance has implications for applications in nanophotonic devices or sensors.

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Section: Introductionmentioning

confidence: 99%

Experimental and Theoretical Investigation of the Distance Dependence of Localized Surface Plasmon Coupled Förster Resonance Energy Transfer

et al. 2014

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“…23 Synthesis and assembly procedures are explained in detail in our previous works. 5,8 The plexciton interaction is structurally controlled by design through placing the plasmonic layer in the proximity of the donors (for strong donor-exciton plasmon-coupling) while sufficiently being far away from the acceptors (for weak acceptor-exciton plasmon-coupling), or vice versa. Corning glass surfaces are pretreated by successive deposition of 6 monolayers (MLs) o f posit ively charged poly-(diallyldimethylammoniumchloride) (PDDA) and negatively charged poly(styrene sulfonate) (PSS) separator film pair prior to the deposition of QDs for homogeneous assembly.…”

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confidence: 99%

Observation of Selective Plasmon-Exciton Coupling in Nonradiative Energy Transfer: Donor-Selective versus Acceptor-Selective Plexcitons

et al. 2013

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We report selectively plasmon-mediated nonradiative energy transfer between quantum dot (QD) emitters interacting with each other via Forster-type resonance energy transfer (FRET) under controlled plasmon coupling either to only the donor QDs (i.e., donor-selective) or to only the acceptor QDs (i.e., acceptor-selective). Using layer-by-layer assembled colloidal QD nanocrystal solids with metal nanoparticles integrated at carefully designed spacing, we demonstrate the ability to enable/disable the coupled plasmon-exciton (plexciton) formation distinctly at the donor (exciton departing) site or at the acceptor (exciton feeding) site of our choice, while not hindering the donor exciton-acceptor exciton interaction but refraining from simultaneous coupling to both sites of the donor and the acceptor in the FRET process. In the case of donor-selective plexciton, we observed a substantial shortening in the donor QD lifetime from 1.33 to 0.29 ns as a result of plasmon-coupling to the donors and the FRET-assisted exciton transfer from the donors to the acceptors, both of which shorten the donor lifetime. This consequently enhanced the acceptor emission by a factor of 1.93. On the other hand, in the complementary case of acceptor-selective plexciton we observed a 2.70-fold emission enhancement in the acceptor QDs, larger than the acceptor emission enhancement of the donor-selective plexciton, as a result of the combined effects of the acceptor plasmon coupling and the FRET-assisted exciton feeding. Here we present the comparative results of theoretical modeling of the donor-and acceptorselective plexcitons of nonradiative energy transfer developed here for the first time, which are in excellent agreement with the systematic experimental characterization. Such an ability to modify and control energy transfer through mastering plexcitons is of fundamental importance, opening up new applications for quantum dot embedded plexciton devices along with the development of new techniques in FRET-based fluorescence microscopy. KEYWORDS: Localized plasmons, nonradiative energy transfer, excitons, metal nanoparticles, semiconductor quantum dots, plexcitons, layer-by-layer assembly T he Forster-type resonance energy transfer (FRET), an important proximity effect that can strongly modify the emission kinetics of fluorophores serving as donors and acceptors, is widely used in biotechnology especially as

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“…Thus, especially effective anisotropic emission was demonstrated in case of CdTe quantum dots incorporated into plasmonic cavities near a repeated array of spherical gold nanoparticles [26].…”

Section: Resultsmentioning

confidence: 99%

Tailoring of the spectral–directional characteristics of rare-earth fluorescence by metal–dielectric planar structures

et al. 2012

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Anisotropic Emission from Multilayered Plasmon Resonator Nanocomposites of Isotropic Semiconductor Quantum Dots

Cited by 66 publications

References 32 publications

Experimental and Theoretical Investigation of the Distance Dependence of Localized Surface Plasmon Coupled Förster Resonance Energy Transfer

Experimental and Theoretical Investigation of the Distance Dependence of Localized Surface Plasmon Coupled Förster Resonance Energy Transfer

Observation of Selective Plasmon-Exciton Coupling in Nonradiative Energy Transfer: Donor-Selective versus Acceptor-Selective Plexcitons

Tailoring of the spectral–directional characteristics of rare-earth fluorescence by metal–dielectric planar structures

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