Flexible surface-enhanced Raman scattering-active substrates based on nanofibrous membranes

Prikhozhdenko, Ekaterina S.; Bratashov, Daniil N.; Gorin, Dmitry A.; Yashchenok, Alexey M.

doi:10.1007/s12274-018-2064-2

Cited by 45 publications

(16 citation statements)

References 172 publications

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“…Functional devices incorporating plasmonic nanoparticles on rigid dielectric or semiconducting templates have been employed in proof of concept seminal experiments [6][7][8][9][10]. More recently, the research interest is turning towards the development of advanced multifunctional plasmonic architectures, supported onto flexible, nonplanar and transparent polymer substrates [11][12][13][14] with tailored LSP resonances for their promising potential in biosensing [15,16], refractive-index sensing [17], wire-grid polarizer [18][19][20] and opto-electronics [21,22], etc. A crucial advancement is represented by the possibility to exploit, at the same time, the plasmonic properties of noble metal nanowire arrays together with their excellent electrical transport properties to be employed e.g., as multifunctional transparent conductive electrodes (TCE) for flexible devices with added functionality of plasmon-enhanced photon harvesting [23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Large-area flexible nanostripe electrodes featuring plasmon hybridization engineering

et al. 2020

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Multifunctional flexible Au electrodes based on one-dimensional (1D) arrays of plasmonic gratings are nanofabricated over large areas with an engineered variant of laser interference lithography optimized for low-cost transparent templates. Au nanostripe (NS) arrays achieve sheet resistance in the order of 20 Ohm/square on large areas (∼ cm2) and are characterized by a strong and dichroic plasmonic response which can be easily tuned across the visible (VIS) to near-infrared (NIR) spectral range by tailoring their cross-sectional morphology. Stacking vertically a second nanostripe, separated by a nanometer scale dielectric gap, we form near-field coupled Au/SiO2/Au dimers which feature hybridization of their localized plasmon resonances, strong local field-enhancements and a redshift of the resonance towards the NIR range. The possibility to combine excellent transport properties and optical transparency on the same plasmonic metasurface template is appealing in applications where low-energy photon management is mandatory like e.g., in plasmon enhanced spectroscopies or in photon harvesting for ultrathin photovoltaic devices. The remarkable lateral order of the plasmonic NS gratings provides an additional degree of freedom for tailoring the optical response of the multifunctional electrodes via the excitation of surface lattice resonances, a Fano-like coupling between the broad localised plasmonic resonances and the collective sharp Rayleigh modes.

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Section: Introductionmentioning

confidence: 99%

Large-area flexible nanostripe electrodes featuring plasmon hybridization engineering

et al. 2020

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“…In addition, by concentrating NPs to a limited region of a hydrophobic surface, high SERS signals of the target sample were achieved [33]. The electrospun nanofiber membrane-based SERS substrate is hydrophobic, providing a good platform to adsorb organic samples for producing accurate Raman signals [34].…”

Section: Introductionmentioning

confidence: 99%

Preparation of Hydrophobic Film by Electrospinning for Rapid SERS Detection of Trace Triazophos

Shao

Cao

et al. 2020

Sensors

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For real application, it is an urgent demand to fabricate stable and flexible surface-enhanced Raman scattering (SERS) substrates with high enhancement factors in a large-scale and facile way. Herein, by using the electrospinning technique, a hydrophobic and flexible poly(styrene-co-butadiene) (SB) fibrous membrane is obtained, which is beneficial for modification of silver nanoparticles (Ag NPs) colloid in a small region and then formation of more “hot spots” by drying; the final SERS substrate is designated as Ag/SB. Hydrophobic Ag/SB can efficiently capture heterocyclic molecules into the vicinity of hot spots of Ag NPs. Such Ag/SB films are used to quantitatively detect trace triazophos residue on fruit peels or in the juice, and the limit of detection (LOD) of 2.5 × 10−8 M is achieved. Ag/SB films possess a capability to resist heat. As a case, 6-mercaptopurine (6MP) that just barely dissolves in 90 °C water is picked for conducting Ag/SB-film-based experiments.

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“…Surface enhanced Raman scattering (SERS), as a rapid, highly sensitive and non-destructive method for fingerprint detection, has been widely used in chemical and biochemical analysis. [1][2][3][4][5][6][7] To carry out perfect SERS measurement, SERS substrates are supposed to not only have high-density "hot spots" with highly concentrated electromagnetic (EM) field to make a significant contribution to the Raman signal enhancement, but also have good uniformity to guarantee reproducible SERS measurements. [8][9][10][11][12][13][14] Since ordered three-dimensional (3D) micro/nanostructures (mainly plasmonic nanoparticles) with large surface area can support high-density "hot spots" while ensuring a good uniformity, various SERS substrates of noble metal nanoparticles (NPs) decorated 3D nanostructures were constructed, [15][16][17][18] such as Ag-NPs@ZnO nanowire arrays, [19] Ag-NPs@vertical graphene-nanosheet, [20] Ag-nanocubes@photolithographic microstructures and Pt@TiO 2 nanotube arrays.…”

Section: Introductionmentioning

confidence: 99%

Ag‐Nanoparticles‐Decorated Ge‐Nanowhisker Grafted on Carbon Fiber Cloth as Flexible and Effective SERS Substrates

et al. 2020

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Three‐dimensional (3D) flexible surface enhanced Raman scattering (SERS) substrates of silver nanoparticles (Ag‐NPs) decorated Germanium nanowhiskers (Ge‐NWHKs) grafted on carbon fiber cloth (CFC) (denoted as Ag‐NPs@Ge‐NWHKs@CFC) are constructed via chemical vapor deposition growth of high‐density Ge‐NWHKs on CFC and then assembly of Ag‐NPs on the Ge‐NWHKs by galvanic displacement. Ordered 3D framework of Ge‐NWHKs grafted flexible CFC impels the formation of large amounts of Ag‐NPs with homogenous distribution via spontaneous reduction of Ag+ ions. Thus, the Ag‐NPs@Ge‐NWHKs@CFC SERS substrates present ultra‐high sensitivity, good reproducibility, and high flexibility. This SERS sensor has achieved a detection limit of 1 pM for Rhodamine 6G and 0.1 nM for thiram respectively. The as‐fabricated SERS substrates show promising potential for applications in rapid detection of trace organic pollutants in the aquatic environment.

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Flexible surface-enhanced Raman scattering-active substrates based on nanofibrous membranes

Cited by 45 publications

References 172 publications

Large-area flexible nanostripe electrodes featuring plasmon hybridization engineering

Large-area flexible nanostripe electrodes featuring plasmon hybridization engineering

Preparation of Hydrophobic Film by Electrospinning for Rapid SERS Detection of Trace Triazophos

Ag‐Nanoparticles‐Decorated Ge‐Nanowhisker Grafted on Carbon Fiber Cloth as Flexible and Effective SERS Substrates

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