Surface-enhanced Raman spectroscopy (SERS) using Ag nanoparticle films produced by pulsed laser deposition

Smyth, Ciarán; Mirza, Inam; Lunney, J. G.; McCabe, Eithne M.

doi:10.1016/j.apsusc.2012.09.078

Cited by 44 publications

(29 citation statements)

References 5 publications

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“…Figure shows in detail the topography of the gold layer coating a flat and a nanostructured polymer film and constituted by gold nanoparticles with sizes of up to a few nanometers. Noble metal nanoparticles obtained by PLD have been previously shown to enhance the Raman signal, and this effect was attributed to the relatively high fraction of “hot spots,” localized in the junctions . In our case, the enhancement by eight orders of magnitude of the Raman signal can be attributed to the large number of hot spots in a highly packed nanoparticle metal layer.…”

Section: Resultssupporting

confidence: 60%

Laser‐induced surface structures on gold‐coated polymers: Influence of morphology on surface‐enhanced Raman scattering enhancement

Rebollar

Hernández

Sanz

et al. 2015

J of Applied Polymer Sci

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The fabrication of highly sensitive and reproducible substrates for Surface-Enhanced Raman Scattering (SERS) remains a challenging scientific and technological issue. In this work, laser-induced periodic surface structures are generated on poly(trimethylen terephthalate) films upon laser irradiation with the linearly polarized beams of a Nd:YAG laser (4th harmonic, 266 nm), an ArF excimer laser (193 nm), and a Titanium:sapphire laser (795 nm), resulting in periods close to the laser wavelength when irradiating at normal incidence, and larger periods for different angles of incidence. Additional irradiation with a circularly polarized beam at 266 nm produces superficial circular structures. The nanostructured polymers are coated with a nanoparticle assembled gold layer by pulsed laser deposition at 213 nm. The capabilities of these substrates for SERS are evaluated using benzenethiol as a test molecule and different degrees of Raman signal enhancement are observed depending on the nanostructure type. The highest enhancement factor is obtained by for nanostructured substrates with the highest values of period, depth, and roughness.

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Section: Resultssupporting

confidence: 60%

Laser‐induced surface structures on gold‐coated polymers: Influence of morphology on surface‐enhanced Raman scattering enhancement

Rebollar

Hernández

Sanz

et al. 2015

J of Applied Polymer Sci

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“…Ag micro/nanoparticles (MNPs) have great potential for applications in many fields, such as in sensors [1], catalysts [2] and electronics [3], because of their excellent electrical and thermal conductivities. For example, Nam et al [4] reported that Ag nanoparticles were added to anodes of Li-ion batteries to enhance storage performance by maintaining their nanoparticle morphology inside the anodes.…”

Section: Introductionmentioning

confidence: 99%

Growth of Ag micro/nanoparticles using stress migration from multilayered metallic structure

Saka

2015

Applied Surface Science

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“…Recently, the SERS-substrates based on films with Ag NP arrays were prepared using pulsed laser deposition (PLD) from the direct flux of erosion torch particles on the substrate located at some distance along the normal to the target plane [13]. Taking into account the advantages for the SERS substrates of porous films with Ag NP arrays, we have developed the corresponding PLD method that is different as compared to that in [13].…”

Section: Introductionmentioning

confidence: 99%

“…Taking into account the advantages for the SERS substrates of porous films with Ag NP arrays, we have developed the corresponding PLD method that is different as compared to that in [13]. Deposition of Ag NPs is performed from the back low-energy flux of Ag particles on the substrate located in the target plane [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Micro-Raman study of nanocomposite porous films with silver nanoparticles prepared using pulsed laser deposition

Strelchuk¹

2015

Semicond. Phys. Quantum Electron. Optoelectron.

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Abstract. Nanocomposite porous films with silver nanoparticle (Ag NP) arrays were prepared by the pulsed laser deposition from the back flux of erosion torch particles in argon atmosphere on the substrate placed at the target plane. Preparation conditions of the films were set by argon pressure, energy density of laser pulses, their amount and substrate position relatively to the torch axis. The films were prepared with gradient thickness, variable Ag NP sizes and distance between them along the length of substrate as well as corresponding maxima in the spectra of local surface plasmon absorption. Plasmon effects of the Raman scattering enhance in the matter of the Ag NP shell gave the opportunity to register the spectral bands caused by an extremely small quantity of silver compounds with oxygen and carbon. The possible nature of individual bands in the Raman spectrum was analyzed. The obtained results are important for interpretation of the Raman spectra of analytes based on the prepared SERS substrates.

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Surface-enhanced Raman spectroscopy (SERS) using Ag nanoparticle films produced by pulsed laser deposition

Cited by 44 publications

References 5 publications

Laser‐induced surface structures on gold‐coated polymers: Influence of morphology on surface‐enhanced Raman scattering enhancement

Laser‐induced surface structures on gold‐coated polymers: Influence of morphology on surface‐enhanced Raman scattering enhancement

Growth of Ag micro/nanoparticles using stress migration from multilayered metallic structure

Micro-Raman study of nanocomposite porous films with silver nanoparticles prepared using pulsed laser deposition

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