Influence of plasmonic array geometry on energy transfer from a quantum well to a quantum dot layer

Higgins, Luke J.; Marocico, Cristian A.; Karanikolas, Vasilios; Bell, Alan P.; Gough, John J.; Murphy, Graham P.; Parbrook, P. J.; Bradley, A. Louise

doi:10.1039/c6nr05990b

Cited by 13 publications

(14 citation statements)

References 61 publications

(80 reference statements)

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“…These results are in agreement with the theoretical work of Zurita-Sánchez and Mendez-Villanueva who attributed the reduction in the Förster efficiency to the simultaneous increase in the donor decay rate in the presence of the dimer. However, Torres et al achieved up to 50% (33% without a dimer) FRET efficiency through careful alignment of the donor dipole moment relative to the acceptor one, and Higgins et al achieved up to 50% Förster efficiency using an array of plasmonic nanotstructures. On the other hand, FRET efficiency based on dielectric optical resonators , ranges from ∼40% to 75%.…”

mentioning

confidence: 99%

Förster Resonance Energy Transfer and the Local Optical Density of States in Plasmonic Nanogaps

Hamza

Viscomi

Bouillard

et al. 2021

J. Phys. Chem. Lett.

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Förster resonance energy transfer (FRET) is a fundamental phenomenon in photosynthesis and is of increasing importance for the development and enhancement of a wide range of optoelectronic devices including colour tuning LEDs and lasers, light harvesting, sensing systems, and quantum computing. Despite its importance, fundamental questions still remain unanswered on the FRET rate dependency on the local density of optical states (LDOS). In this work, we investigate this directly, theoretically and experimentally, using 30 nm plasmonic nanogaps formed between a silver nanoparticle and an extended silver film, in which the LDOS can be controlled using the size of the silver nanoparticle. Experimentally, Uranin-Rhodamine 6G donor-acceptor pairs coupled to such nanogaps yielded FRET rate enhancements of 3.6 times. This, combined with 5 times enhancement in the emission rate of the acceptor, resulted in an overall 14 times enhancement in the acceptor's emission intensity. By tuning the nanoparticle size, we also show that the FRET rate in those systems is linearly dependent on the LDOS, a result which is directly supported by our Finite Difference Time Domain (FDTD) calculations. Our results provide a simple but powerful method to control FRET rate via a direct LDOS modification.

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confidence: 99%

Förster Resonance Energy Transfer and the Local Optical Density of States in Plasmonic Nanogaps

Hamza

Viscomi

Bouillard

et al. 2021

J. Phys. Chem. Lett.

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“…The largest increase in QD emission of ~71% is due to a non-radiative energy transfer efficiency of ~25% coupled with an array QD emission ratio of ~1.4. A model has been developed to confirm that the increases in the QD emission on the array-decorated QW can be fully attributed to plasmon-enhanced nonradiative energy transfer [8].…”

Section: Resultsmentioning

confidence: 99%

Influence of plasmonic array geometry on non-radiative energy transfer from a quantum well to a quantum dot layer

Higgins

Marocico

Coindreau

et al. 2017

2017 19th International Conference on Transparent Optical Networks (ICTON)

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The influence of ordered plasmonic arrays on energy transfer from a quantum well to a quantum dot layer has been investigated. The ordered arrays are comprised of nanostructures of different geometries, including boxes, disks and rings. Despite no signature of non-radiative energy transfer in the absence of an array, an efficiency of ~51% is observed for a ring array, though strong emission quenching yields an overall increase of only ~ 14% of the QD emission. The QD emission is enhanced by ~25% for disk arrays, and was found to be relatively insensitive to the gap between disks. In contrast, the QD emission enhancement decreases from ~70% to 40% as the separation between boxes increases from 100 nm to 160 nm. The largest increase in QD emission of ~70% is due to a non-radiative energy transfer efficiency of ~25% coupled with a QD emission enhancement factor of ~1.4. The results demonstrate the flexibility offered by plasmonic arrays to optimise non-radiative energy transfer or to benefit from a combination of energy transfer and enhanced radiative emission, relevant to sensing and colour conversion applications.

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“…[ 41,42 ] In this case, the luminescence resonance energy transfers between plasmonic AuNPs and luminescence CDs in assemblies. [ 43,44 ]…”

Section: Self‐nanoassembly Of Pacd Nanoprobesmentioning

confidence: 99%

Nanoassembled Peptide Biosensors for Rapid Detection of Matrilysin Cancer Biomarker

Behi

Naficy

Chandrawati

et al. 2020

Small

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high translational values. [7][8][9] Commonly, organic fluorophore dyes and quantum dots (QDs) have been employed in order to modify peptides such as Escherichia coli for fluorescent imaging and biosensing. [10,11] Still, fluorescent dyes have several issues such as susceptibility to photobleaching and slender specificity for bioconjugation to particular reactive sites. [12,13] Most QDs, on the other hand, suffer from cytotoxicity for biomedical applications. [14][15][16] Carbon quantum dots (CDs), [17] a class of 0D carbon nanomaterials (1-10 nm) with unique optical properties, high photo stability, excellent biocompatibility, and facile preparation are promising substitutes to fluorescent dyes and QDs. [18,19] In addition, gold nanoparticles (AuNPs) have shown remarkable physical and optical properties in nanomedicine applications, specifically in the field of nanobiosensors. [20][21][22] The chemical and physical interactions between AuNPs and proteins or peptides have already been characterized with biophysical, [23] biochemical, [24] and computational methods, [25] which indicate the diversity of AuNPs as an ideal model material for developing new peptide/protein optical biosensors. So far, several studies have been conducted aiming at manipulating peptide self-nanoassembly into desired nanoarchitectures for sensing applications. [26][27][28][29][30][31] For instance, peptide-functionalized AuNPs with tunable, reversible, [32] and irreversible [33,34] aggregations were synthesized as nanobiosensors to detect phospholipases and proteolytic activities, respectively. Yet, it remains a challenge to fully engineer the nanoarchitecture of peptide and hybrid nanoparticles to respond to minuscule concentrations of target analytes (e.g., cancer biomarker) in a short amount of time.In the light of the necessity for rapid detection of cancerrelated protein biomarkers, we have engineered a sensitive and selective fluorescent, label-free protein detection platform hereafter referred to as the PACD (peptide-Au-carbon dots) nanoprobe (Sections S1-S7, Supporting Information). We based this class of hybrid nanobiosensing platform on a synthetic polypeptide aptamer sensitive to the target biomarker which is anchored to AuNPs from one end and semiconducting zero dimensional CDs from the other end with niche electro-optical properties (Figure 1a). The polypeptide, referred to as the bioreceptor interchangeably, belongs to a family of helix-loophelix polypeptides de novo (JR2EC). [35] The bioreceptors and the surface-functionalized CDs were assembled step-wise on the surface of AuNPs, forming a stable nanoprobe (Figure 1b). As the active component of the nanobiosensors, JR2ECEarly detection of cancer is likely to be one of the most effective means of reducing the cancer mortality rate. Hence, simple and ultra-quick methods for noninvasive detection of early-stage tumors are highly sought-after. In this study, a nanobiosensing platform with a rapid response time of nearly 30 s is introduced for the detection of matrilysin-the sal...

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Influence of plasmonic array geometry on energy transfer from a quantum well to a quantum dot layer

Cited by 13 publications

References 61 publications

Förster Resonance Energy Transfer and the Local Optical Density of States in Plasmonic Nanogaps

Förster Resonance Energy Transfer and the Local Optical Density of States in Plasmonic Nanogaps

Influence of plasmonic array geometry on non-radiative energy transfer from a quantum well to a quantum dot layer

Nanoassembled Peptide Biosensors for Rapid Detection of Matrilysin Cancer Biomarker

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