Extending nanoscale patterning with multipolar surface plasmon resonances

Kherbouche, Issam; Macrae, D. L.; Jourdain, Théo Geronimi; Lagugné‐Labarthet, François; Lamouri, Azedine; Biraud, Alexandre Chevillot; Mangeney, Claire; Félidj, Nordin

doi:10.1039/d1nr02181h

Cited by 4 publications

(4 citation statements)

References 44 publications

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“…Nanoprecise local plasmonic chemistry has been reported previously. It was used for polymer grafting or the selective immobilization of semiconductor or organic moieties in place of a high plasmon EF concentration. − , Plasmonic coupling results in strong EF enhancement as well as plasmon-triggered transformations. Our results, which are based on SPP–LSP coupling and the related spatially restricted hot spot excitation, combine both approaches and demonstrate the potential possibility of achieving simultaneous nanoprecise chemical transformation(s) and plasmonic coupling.…”

Section: Results and Discussionmentioning

confidence: 99%

“…The nature of coupled plasmonic nanoparticles allows for the localized enhancement of plasmon strength, allowing for nanoprecise chemical transformations or material grafting. − In particular, chemical transformations can occur in spatially restricted areas with a more pronounced concentration of the plasmon EF. This method of spatially selective modification clears the way for the creation of a whole series of improved plasmonic substrates with broader functionality in the sensorics field and chemical technology. − In this work, we demonstrated the ability to utilize SPP–LSP plasmonic coupling for nanoprecise chemical transformation for the first time.…”

Section: Introductionmentioning

confidence: 99%

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Immobilization of Gold Nanoparticles in Localized Surface Plasmon Polariton-Coupled Hot Spots via Photolytic Dimerization of Aromatic Amine Groups for SERS Detection in a Microfluidic Regime

Burtsev

Милютина

Ulbrich

et al. 2022

ACS Appl. Nano Mater.

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Plasmon-assisted chemistry is an effective tool for triggering various chemical transformations that can be performed with high spatial precision. Plasmon-triggering efficiency is ensured by a high concentration of light energy near the plasmonic surface and the resulting enhancement of the local electric field (EF). The coupling of different plasmonic nanostructures by multimodal plasmonic hot spots can significantly enhance the EF, increasing plasmon-triggering efficiency. In this work, we demonstrate that the coupling between the traveled surface plasmon polariton (SPP) wave and the localized surface plasmon (LSP) resonance can be used to effectively realize plasmon-induced organic reactions, even in hot spots between SPP-and LSP-supported Au nanostructures. The periodically modulated surface of the gold grating was used as an SPP-active plasmonic support, with spherical Au nanoparticles (AuNPs) ensuring LSP excitation. To model the chemical transformation, we utilized the dimerization of amino groups (previously grafted to Au nanostructures) with azo bridges between the AuNPs and Au grating. The reaction was performed in a microfluidic regime and resulted in AuNP immobilization on the grating surface. Experiments and theoretical studies indicated that the azo-bridge formation and AuNP immobilization occurred only under illumination with the SPP wavelength and proceeded more effectively on the grating walls (particularly the inflection points), where the EF enhancement is greatest due to LSP−SPP coupling. Created structures were subsequently demonstrated as a promising substrate for the SERS-based detection in the microfluidic regime.

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Section: Results and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Immobilization of Gold Nanoparticles in Localized Surface Plasmon Polariton-Coupled Hot Spots via Photolytic Dimerization of Aromatic Amine Groups for SERS Detection in a Microfluidic Regime

Burtsev

Милютина

Ulbrich

et al. 2022

ACS Appl. Nano Mater.

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“…We attribute the lack of anisotropic growth on the bigger NPs to their strong quadrupolar extinction between 480 and 530 nm (Figure S4). Indeed, it was shown recently that selective excitation of a multipolar mode changes the localization of the layer deposited by plasmon-induced diazonium reduction . In the present case, irradiation is performed with white light, and both dipolar and quadrupolar modes are excited for NPs over 150 nm in diameter.…”

mentioning

confidence: 89%

“…Indeed, it was shown recently that selective excitation of a multipolar mode changes the localization of the layer deposited by plasmon-induced diazonium reduction. 55 In the present case, irradiation is performed with white light, and both dipolar and quadrupolar modes are excited for NPs over 150 nm in diameter. On the contrary, when the NPs are 120 nm or less the quadrupolar modes are very weak and only dipolar modes are excited, which leads to anisotropic growth along the direction of polarization of the light.…”

Section: T H Imentioning

confidence: 99%

Long-Range Plasmon-Induced Anisotropic Growth of an Organic Semiconductor between Isotropic Gold Nanoparticles

2022

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Plasmon-induced diazonium reduction was used to graft an organic semiconductor, namely oligo(bisthienylbenzene) (BTB), onto square arrays of gold nanoparticles (NPs) of various diameters. Grafting was evidenced by scanning electron microscopy (SEM) measurements by the extinction spectra of the localized surface plasmon resonance, as well as by Raman and energy dispersive X-ray (EDX) spectroscopies. We show that BTB is selectively deposited around the NPs. The thickness of the layer increases with increasing irradiation time and reaches a limit which depends on the size of the NPs with the thicker organic layers being generated for smaller NPs. Under polarized irradiation, BTB growth is strongly anisotropic. Starting from arrays with square gratings and spherical NPs, long-range plasmon-induced anisotropic growth makes it possible to generate in the direction of the polarized light, lines, columns, or lines and columns of NPs connected by an organic semiconductor. These results demonstrate that the growth is due to hot electrons.

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Multifunctional organic monolayer-based coatings for implantable biosensors and bioelectronic devices: Review and perspectives

Patel¹,

Huang²,

Krukiewicz³

2023

Biosensors and Bioelectronics: X

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Extending nanoscale patterning with multipolar surface plasmon resonances

Abstract: Plasmonic excitation of metallic nanoparticles can trigger chemical reactions at the nanoscale. Such optical effects can also be employed to selectively and locally graft photopolymer layers at the nanostructure surface,...

Cited by 4 publications

References 44 publications

Immobilization of Gold Nanoparticles in Localized Surface Plasmon Polariton-Coupled Hot Spots via Photolytic Dimerization of Aromatic Amine Groups for SERS Detection in a Microfluidic Regime

Immobilization of Gold Nanoparticles in Localized Surface Plasmon Polariton-Coupled Hot Spots via Photolytic Dimerization of Aromatic Amine Groups for SERS Detection in a Microfluidic Regime

Long-Range Plasmon-Induced Anisotropic Growth of an Organic Semiconductor between Isotropic Gold Nanoparticles

Multifunctional organic monolayer-based coatings for implantable biosensors and bioelectronic devices: Review and perspectives

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