Direct growth of plasmonic nanorod forests on paper substrates for low-cost flexible 3D SERS platforms

Araújo, Andreia; Pimentel, Ana; Oliveira, Maria João; Mendes, Manuel J.; Franco, Ricardo; Fortunato, Elvira; Águas, Hugo; Martins, Rodrigo

doi:10.1088/2058-8585/2/1/014001

Cited by 49 publications

(29 citation statements)

References 61 publications

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“…Different supports have a great impact on the SERS performance of the nanoparticles and special substrates enables to achieve some functionalization requirements . Therefore, the influence of the supports on the SERS properties of the Au NCs monolayer film were systematically investigated.…”

Section: Resultsmentioning

confidence: 99%

Fabrication of flexible paper‐based Surface‐enhanced Raman scattering substrate from Au nanocubes monolayer for trace detection of crystal violet on shell

Lin

Song

et al. 2019

J Raman Spectroscopy

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Surface‐enhanced Raman scattering (SERS) substrate is the key to SERS technology and it is still a basic focus to fabricate desirable SERS substrates offering multiple advantages of strong Raman enhancement and good reproducibility and portability. A flexible paper‐based SERS substrate were fabricated involving the use of Au nanocubes (NCs) monolayer. Au NCs were generated with tunable size in the range of 24 to 63 nm through seed‐mediated growth method. The effect of support on SERS properties of Au NCs–assembled monolayer was systemically explored. As a result, more excellent SERS performance could be obtained by assembling Au NCs on the filter paper. Besides, the influence of Au NCs' size on SERS‐enhanced effect of paper‐based substrate was also investigated. Our results clearly indicated that paper‐based substrate with 39 nm Au NCs possessed the optimal SERS enhancement. This SERS substrate exhibited high sensitivity with enhancement factor (EF) up to 9.75 × 107 and demonstrated good uniformity and time stability. Furthermore, based on this superior paper‐based SERS substrate with advantage of powerful sample extraction performance, the measurement of crystal violet (CV) on shell surface were successfully carried out with detection limit down to 2.17 × 10−7 M. And linear quantification were achieved in the range from 5 × 10−5 to 5 × 10−7 M. To sum up, the as‐prepared SERS substrate is applicable for on‐site detection and analysis of CV on various shell surfaces.

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Section: Resultsmentioning

confidence: 99%

Fabrication of flexible paper‐based Surface‐enhanced Raman scattering substrate from Au nanocubes monolayer for trace detection of crystal violet on shell

Lin

Song

et al. 2019

J Raman Spectroscopy

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“…For measurements on top of a microsphere with Ag nanoislands as a cap, clearer spectrum with distinctive peaks at 613, 772, 931, 1000, 1190, 1360, 1509, 1540, 1575, 1598, and 1648 cm −1 can be distinguished, which verifies the enhanced Raman scattering in this scheme. Instead of an absolute enhancement factor over the baseline (unenhanced case) which involves additional calibration of analyte concentration, a relative enhancement ratio between the two SERS cases is evaluated. The band at 1648 cm −1 , the aromatic C–C stretching vibration mode, is selected for quantitative comparison.…”

Section: Resultsmentioning

confidence: 99%

“…In the previous reports, 3D plasmonic surfaces deposited on nanostructured scaffolds such as ZnO nanoforests have been proposed and demonstrated with great potentials for SERS application owing to the largely increased sensing area and increased interaction of neighboring metal nanoparticles. In our scheme, the surface morphology on top of a microsphere is comparable to the one of a deposited flat layer, which does not lead to an increased amount of analyte compared with a flat substrate.…”

Section: Resultsmentioning

confidence: 99%

Surface‐Enhanced Raman Scattering Enabled by Metal‐Coated Dielectric Microspheres

Wang

Yin

et al. 2018

Physica Status Solidi (b)

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Dielectric microspheres have been demonstrated as an efficient tool for nonplasmonic surface-enhanced Raman scattering (SERS) due to the curvatureinduced local electromagnetic enhancement. By combining a metal layer onto the microsphere surface, one can study SERS which is activated by both surface plasmons and microsphere-induced modulation of Raman emission. In this work, a new strategy of enhanced Raman scattering using silvercoated polystyrene microspheres is reported. The Raman signal of 10 À6 M Rhodamine 6G molecules measured on the microsphere top surface is up to seven times larger than that measured from a flat silver film. An enhancement factor up to %10 8 is estimated compared with the case of a nonplasmonic microsphere surface. The enhancement is attributed to localized surface plasmon resonances and also the modification of emission directionality which increases both Raman scattering and the collection efficiency of the detecting system. Besides, whispering gallery mode resonance potentially leads to additional cavity-field enhancement effect of Raman signals. Both experimental statistics and numerical calculations reveal that efficient enhancement occurs without purposely spectral matching optical resonance with Raman emission wavelengths.

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“…bottom-up) to fabricate Mie scatterers for solar cells need to be explored. Although wet chemical techniques are used to fabricate Mie scattering structures (Araújo A. et al, 2017;Karg M. et al, 2015), more industrially compatible techniques are desirable. A recent work by (Giannakoudakis and Di Vece, 2017) shows that TiO 2 Mie scatterers can be produced with a gas aggregation cluster source and combined with a-Si thin films.…”

Section: Mie Scatterersmentioning

confidence: 99%

Using Nanoparticles as a Bottom-up Approach to Increase Solar Cell Efficiency

Vece

2019

KONA

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Nanostructures in solar cells are used both for the active layers and for light management techniques. Particularly thin-film solar cells will benefit strongly from such nanoscale approaches as the light absorption needs to be improved. Nanoparticles produced by wet chemical techniques, sometimes in the form of quantum dots, are currently used to fabricate thin-film solar cells for research purposes. Light management studies use nanostructures that are often created by lithographic methods but which are too expensive for an industrial realisation. In this review paper, the opportunities for using nanoparticles as a bottom-up approach for both the active layer and light management nanostructures is discussed. Since both the wet chemical method and lithographic techniques have considerable limitations, the use of gas aggregation cluster sources is proposed as a promising method to advance the use of bottom-up nanoparticles for solar cells. Plasmonics, Mie scattering, quantum dots and new materials are reviewed with respect to the nanoparticle potential. The increase of solar cell efficiency by using ultra-clean and crystalline nanoparticles which are produced with a vacuum-compatible technique at low temperatures should be very interesting for science and technology, ultimately leading to industrial products.

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Direct growth of plasmonic nanorod forests on paper substrates for low-cost flexible 3D SERS platforms

Cited by 49 publications

References 61 publications

Fabrication of flexible paper‐based Surface‐enhanced Raman scattering substrate from Au nanocubes monolayer for trace detection of crystal violet on shell

Fabrication of flexible paper‐based Surface‐enhanced Raman scattering substrate from Au nanocubes monolayer for trace detection of crystal violet on shell

Surface‐Enhanced Raman Scattering Enabled by Metal‐Coated Dielectric Microspheres

Using Nanoparticles as a Bottom-up Approach to Increase Solar Cell Efficiency

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