Fabrication and Characterization of Flexible and Tunable Plasmonic Nanostructures

Kahraman, Mehmet; Daggumati, Pallavi; Kurtuluş, Özge; Şeker, Erkin; Wachsmann‐Hogiu, Sebastian

doi:10.1038/srep03396

Cited by 119 publications

(89 citation statements)

References 73 publications

(118 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The integration of plasmonic nanoparticles on top of elastomeric substrates has enabled tuning of the plasmon modes (5)(6)(7)(8)(9)(10), but the resonances remain broad because of radiative damping. Although long-range coupling in periodic arrays can result in extremely narrow resonances (full width at half maximum (FWHM) linewidths <5 nm) (11)(12)(13), the design criteria for these lattice plasmon modes are stringent, and the quality of the arrays is fixed at the time of fabrication.…”

mentioning

confidence: 99%

Programmable and reversible plasmon mode engineering

Yang

Hryn

Bourgeois

et al. 2016

Proc. Natl. Acad. Sci. U.S.A.

135

154

View full text Add to dashboard Cite

Plasmonic nanostructures with enhanced localized optical fields as well as narrow linewidths have driven advances in numerous applications. However, the active engineering of ultranarrow resonances across the visible regime-and within a single system-has not yet been demonstrated. This paper describes how aluminum nanoparticle arrays embedded in an elastomeric slab may exhibit high-quality resonances with linewidths as narrow as 3 nm at wavelengths not accessible by conventional plasmonic materials. We exploited stretching to improve and tune simultaneously the optical response of as-fabricated nanoparticle arrays by shifting the diffraction mode relative to single-particle dipolar or quadrupolar resonances. This dynamic modulation of particle-particle spacing enabled either dipolar or quadrupolar lattice modes to be selectively accessed and individually optimized. Programmable plasmon modes offer a robust way to achieve real-time tunable materials for plasmon-enhanced molecular sensing and plasmonic nanolasers and opens new possibilities for integrating with flexible electronics.plasmonics | nanoparticles | lattice plasmons | mode engineering | flexible substrates S ingle plasmonic nanoparticles exhibit wide resonant linewidths that can be narrowed by diffractive coupling with neighboring particles (1-3) or nanoscale coupling to metal films (4). The integration of plasmonic nanoparticles on top of elastomeric substrates has enabled tuning of the plasmon modes (5-10), but the resonances remain broad because of radiative damping. Although long-range coupling in periodic arrays can result in extremely narrow resonances (full width at half maximum (FWHM) linewidths <5 nm) (11-13), the design criteria for these lattice plasmon modes are stringent, and the quality of the arrays is fixed at the time of fabrication. Here we report a platform that can selectively access and engineer the quality of distinct, broadband plasmon modes over the entire visible spectrum. Aluminum nanoparticle arrays embedded in an elastomeric slab exhibited high-quality resonances (FWHM: 3-7 nm) at wavelengths not possible for gold or silver and that could be continuously tailored over a large wavelength range (>100 nm). We exploited mechanical stretching to improve and tune simultaneously the optical response of asfabricated arrays by shifting the diffraction mode relative to the single-particle dipolar or quadrupolar resonances. Moreover, dipolar and quadrupolar lattice modes could be individually optimized by stretching along different array directions. The ability to realize programmable plasmon modes from a single system enables tunable substrates for fluorescence enhancement, photocatalysis, biosensing, nanolasers, as well as printed color pixels (14-21).Results Fig. 1 summarizes a platform that can achieve continuously tunable, high-quality lattice plasmon modes based on hexagonal arrays of aluminum nanoparticles embedded in an elastomeric slab. Aluminum nanostructures can support plasmon resonances spanning from the UV to near-IR becau...

show abstract

mentioning

confidence: 99%

Programmable and reversible plasmon mode engineering

Yang

Hryn

Bourgeois

et al. 2016

Proc. Natl. Acad. Sci. U.S.A.

135

154

View full text Add to dashboard Cite

show abstract

“…For this type of core-shell NPs, core size, type of metal shell, and shell thickness are the critical factors for SERS activity [114][115][116]. [50], (B) gold nanorods [91], (C) silver nanobar [92], (D) silver plasmonic nanodome array [93], (E) gold nanocluster [94], (F) gold nanoholes [67], (G) silver nanovoids [73], (H) silver nanocolumnar film [95], and (I) silver nano-pillars [96]. Reproduced with permission from Refs.…”

Section: Colloidal Structuresmentioning

confidence: 99%

“…These are mechanically flexible, low-cost, reproducible, and sensitive and can be manufactured using various advanced methods [73,95,96,[132][133][134][135][136][137][138][139][140][141] to have large areas. Their plasmonic properties can be tuned by changing shape, size, or morphology of nanostructures and also by mechanically bending, stretching, and twisting.…”

Section: Flexible Structuresmentioning

confidence: 99%

“…Plasmonic properties can be tuned by changing physical properties such as size [48][49][50][51][52], shape and type [53][54][55][56][57][58][59][60][61], composition [62][63][64], and dimensionality (2D and 3D) [65][66][67][68][69][70][71][72][73] of the plasmonic nanostructures. When the physical characteristics of nanostructures are tuned, the resonance frequency (or wavelength) of the SPs is changed.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Fundamentals and applications of SERS-based bioanalytical sensing

et al. 2017

Self Cite

View full text Add to dashboard Cite

Abstract:Plasmonics is an emerging field that examines the interaction between light and metallic nanostructures at the metal-dielectric interface. Surface-enhanced Raman scattering (SERS) is a powerful analytical technique that uses plasmonics to obtain detailed chemical information of molecules or molecular assemblies adsorbed or attached to nanostructured metallic surfaces. For bioanalytical applications, these surfaces are engineered to optimize for high enhancement factors and molecular specificity. In this review we focus on the fabrication of SERS substrates and their use for bioanalytical applications. We review the fundamental mechanisms of SERS and parameters governing SERS enhancement. We also discuss developments in the field of novel SERS substrates. This includes the use of different materials, sizes, shapes, and architectures to achieve high sensitivity and specificity as well as tunability or flexibility. Different fundamental approaches are discussed, such as label-free and functional assays. In addition, we highlight recent relevant advances for bioanalytical SERS applied to small molecules, proteins, DNA, and biologically relevant nanoparticles. Subsequently, we discuss the importance of data analysis and signal detection schemes to achieve smaller instruments with low cost for SERS-based point-of-care technology developments. Finally, we review the main advantages and challenges of SERS-based biosensing and provide a brief outlook.

show abstract

“…In additions, Zhigang et al [25] fabricated monolithic alumina precision microcomponents using PDMS soft mold filled with an aqueous suspension. Recently, Kahraman and co-researchers Utilized a nano-sphere soft lithography technique in the manufacturing of planar 3D metallic nano-void substrates suitable for Surface-Enhanced Raman Spectroscopy (SERS) applications [26].…”

Section: Introductionmentioning

confidence: 99%

Manufacturing of metallic micro-components using hybrid soft lithography and micro-electrical discharge machining

Essa

Modica²,

Imbaby

et al. 2016

Int J Adv Manuf Technol

View full text Add to dashboard Cite

In spite of significant improvements in micro-replication techniques, methods to fabricate well-defined net shape microstructures are still in a developing stage. Soft-lithography has the capability to manufacture complex micro-and nanostructures. Although it is considered a robust technique, a major limitation is related to the distortion encountered in the fabricated structures during the drying process. In the present work, a manufacturing technology has been developed that emerges the benefits of Soft-Lithography and Micro Electrical Discharge Machining (µ-EDM) to produce stainless steel precise micro-components for Microimplantable devices. The micro-parts produced by Soft-lithography were subsequently surface processed via µ-EDM in order to improve the surface quality. In addition to this, it was found that µ-EDM drastically improved the surface roughness of stainless steel microcomponents from Ra=3.4 µm to Ra =0.43 µm.

show abstract

Fabrication and Characterization of Flexible and Tunable Plasmonic Nanostructures

Cited by 119 publications

References 73 publications

Programmable and reversible plasmon mode engineering

Programmable and reversible plasmon mode engineering

Fundamentals and applications of SERS-based bioanalytical sensing

Manufacturing of metallic micro-components using hybrid soft lithography and micro-electrical discharge machining

Contact Info

Product

Resources

About