Surface-enhanced Raman scattering effect of gold nanoparticle arrays: The influence of annealing temperature, excitation power and array thickness

Liu, G.Q.; Liu, Z.Q.; Chen, Y.H.; Huang, Kaixuan; Li, L.; Tang, Fu; Gong, Lidong; Yao, Hang; Zhang, X.N.

doi:10.1016/j.ijleo.2013.03.048

Cited by 8 publications

(3 citation statements)

References 9 publications

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“…A recent work 11 uses gold arrays on glass substrates and examines the influence of thickness, annealing temperature and excitation power; the rhodamine 6G SERS signal was found to increase by a factor of ten when thermal treatment (at 250 °C) was applied on the gold arrays (10 nm nominal thickness).…”

Section: Introductionmentioning

confidence: 99%

Thermal dewetting tunes surface enhanced resonance Raman scattering (SERRS) performance

et al. 2018

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Section: Introductionmentioning

confidence: 99%

Thermal dewetting tunes surface enhanced resonance Raman scattering (SERRS) performance

et al. 2018

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“…Low-cost nanoparticles and facile fabrication pave the way for accessible, affordable, and advanced plasmonic and SERS sensing technologies, fulfilling diverse applications across various industries [12]. Metallic nanoplasmonic substrates have already been shown to enhance electromagnetic signals nearby, such as surface-enhanced Raman spectroscopy (SERS) [13,14], metal-enhanced fluorescence (MEF) [15], or plasmonic resonance energy transfer-based nano-spectroscopy [16]. SERS generally relies on hot spots localized in gaps between plasmonic nanoparticle assemblies, also known as SERS substrates [17].…”

Section: Introductionmentioning

confidence: 99%

Facile and Low-Cost Fabrication of SiO2-Covered Au Nanoislands for Combined Plasmonic Enhanced Fluorescence Microscopy and SERS

Vidal,

Molina-Prados,

Cros

et al. 2023

Nanomaterials

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An easy and low-cost way to fabricate monometallic Au nanoislands for plasmonic enhanced spectroscopy is presented. The method is based on direct thermal evaporation of Au on glass substrates to form nanoislands, with thicknesses between 2 and 15 nm, which are subsequently covered by a thin layer of silicon dioxide. We have used HR-SEM and AFM to characterize the nanoislands, and their optical transmission reveals strong plasmon resonances in the visible. The plasmonic performance of the fabricated substrates has been tested in fluorescence and Raman scattering measurements of two probe materials. Enhancement factors up to 1.8 and 9×104 are reported for confocal fluorescence and Raman microscopies, respectively, which are comparable to others obtained by more elaborated fabrication procedures.

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“…films are of great interest due to their potential applications in the field of catalysis, 1,2 magnetic memory, 3 solar cell 4 and optical response based chemical, biological and gas sensors. 5,6 The ultra-thin metal films of different morphologies are also used to improve the sensitivity of surface-enhanced Raman spectroscopy (SERS) [7][8][9] as well as for tuning the color of an object in transmission and reflection mode. 10 For better efficiency of catalysis and sensor, island or percolated films are adopted in comparison to continuous thin film because of high surface to volume ratio of nanostructures as well as due to the generation of localized surface plasmon resonance (LSPR).…”

Section: Introductionmentioning

confidence: 99%

A study of growth and thermal dewetting behavior of ultra-thin gold films using transmission electron microscopy

Sudheer

Mondal

et al. 2017

AIP Advances

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The growth and solid-state dewetting behavior of Au thin films (0.7 to 8.4 nm) deposited on the formvar film (substrate) by sputtering technique have been studied using transmission electron microscopy. The size and number density of the Au nanoparticles (NPs) change with an increase in the film thickness (0.7 to 2.8 nm). Nearly spherical Au NPs are obtained for <3 nm thickness films whereas percolated nanostructures are observed for ≥3 nm thickness films as a consequence of the interfacial interaction of Au and formvar film. The covered area fraction (CAF) increases from ∼13 to 75 % with the change in film thickness from 0.7 to 8.4 nm. In-situ annealing of ≤3 nm film produces comparatively bigger size and better sphericity Au NPs along with their narrow distributions, whereas just percolated film produces broad distribution in size having spherical as well as elongated Au NPs. The films with thickness ≤3 nm show excellent thermal stability. The films having thickness >6 nm show capability to be used as an irreversible temperature sensor with a sensitivity of ∼0.1 CAF/°C. It is observed that annealing affects the crystallinity of the Au grains in the films. The electron diffraction measurement also shows annealing induced morphological evolution in the percolated Au thin films (≥3 nm) during solid-state dewetting and recrystallization of the grains.

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Surface-enhanced Raman scattering effect of gold nanoparticle arrays: The influence of annealing temperature, excitation power and array thickness

Cited by 8 publications

References 9 publications

Thermal dewetting tunes surface enhanced resonance Raman scattering (SERRS) performance

Thermal dewetting tunes surface enhanced resonance Raman scattering (SERRS) performance

Facile and Low-Cost Fabrication of SiO2-Covered Au Nanoislands for Combined Plasmonic Enhanced Fluorescence Microscopy and SERS

A study of growth and thermal dewetting behavior of ultra-thin gold films using transmission electron microscopy

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