Surface-enhanced resonance hyper-Raman scattering and surface-enhanced resonance Raman scattering of dyes adsorbed on silver electrode and silver colloid: a comparison study

Li, Wu-Hu; Li, Xiaoyuan; Yu, Nai‐Teng

doi:10.1016/s0009-2614(99)00892-1

Cited by 52 publications

(19 citation statements)

References 26 publications

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“…For better visibility, In Figure 4, an experimental characterization of the high purity R6G powder's Raman spectrum is presented. The high intensity peaks from literature can be observed [21][22][23][24]. After having applied the built-in fluorescence correction software [25], the peaks are close to the background noise.…”

Section: Resultsmentioning

confidence: 93%

“…For better visibility, the intensity of a single peak for each substrate was also plotted in Figure 5. It shows the Raman intensity of the most intense Raman shift value for R6G excited with 632.8 nm laser (caused by C-C and C-N stretching [21][22][23][24]), i.e., the 1356 cm −1 peak of each spectrum. The detailed analysis of the maximum peak of R6G from 1356 cm −1 reveals that between 50 and 90 overlapping laser pulses is the optimum from the point of view of SERS effect.…”

Section: Resultsmentioning

confidence: 99%

“…In addition, higher laser fluences and numbers of overlapping pulses lead to the formation of oxide droplets, which do not increase the SERS amplification. and C-N stretching [21][22][23][24]), i.e., the 1356 cm −1 peak of each spectrum. The detailed analysis of the maximum peak of R6G from 1356 cm −1 reveals that between 50 and 90 overlapping laser pulses is the optimum from the point of view of SERS effect.…”

Section: Resultsmentioning

confidence: 99%

“…Gold (PI-KEM Ltd., Tamworth, UK, 99.99%) and copper (Color Metal Ltd., Mogos , oaia, Romania, standard C11000 [21]) were used as materials for substrate fabrication. Rhodamine 6G (Voigtländer Kriminaltechnik GmbH, Riedböhringen, Germany, 99.9% powder, abbreviated as R6G) was used as analyte for the Raman characterization of the substrates, either as out-of-the-box powder, or dissolved in distilled water.…”

Section: Methodsmentioning

confidence: 99%

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Fabrication and Characterization of Biplasmonic Substrates Obtained by Picosecond Laser Pulses

et al. 2020

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Bimetallic nanostructures have the potential to become the new generation candidates for applications in catalysis, electronics, optoelectronics, biosensors and also for surface-enhanced Raman Spectroscopy (SERS). The bimetallic nanocrystals offer additional properties over the single metal components such as improved electromagnetic properties and corrosion protection. This work presents a simple and inexpensive method to fabricate large area biplasmonic (bimetallic) substrates, employing DC magnetron sputtering, picosecond laser pulses and a digital galvanometric scanner. The aim of this study was to achieve large area homogeneous substrates while having a good and predictable signal amplification by SERS effect. Gold thin films with 200 nm thickness were deposited on optical polished substrates and then irradiated in atmospheric air with λ = 1064 nm wavelength laser pulses with 8 ps pulse duration and 500 kHz fixed repetition rate. Various laser fluences and laser irradiation speeds were employed in order to optimize the Laser-Induced Periodic Surface Structures (LIPSS) formed on the substrate. The results are presented comparatively for the standalone Cu substrates and for the Cu-Au substrates using Raman spectral analysis on a single signal peak of a Rhodamine 6G solution.

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Section: Resultsmentioning

confidence: 93%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Fabrication and Characterization of Biplasmonic Substrates Obtained by Picosecond Laser Pulses

et al. 2020

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“…Colloidal metals and rough electrodes are used as active surfaces in SERS. Due to their morphology and size, colloidal metals are easy to prepare and describe [ 62 ]. The first recorded SERS spectra were made using a roughened silver electrode [ 63 ].…”

Section: An Overview Of Selected Raman Techniquesmentioning

confidence: 99%

Overview of Popular Techniques of Raman Spectroscopy and Their Potential in the Study of Plant Tissues

Saletnik

Puchalski

2021

Molecules

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Raman spectroscopy is one of the main analytical techniques used in optical metrology. It is a vibration, marker-free technique that provides insight into the structure and composition of tissues and cells at the molecular level. Raman spectroscopy is an outstanding material identification technique. It provides spatial information of vibrations from complex biological samples which renders it a very accurate tool for the analysis of highly complex plant tissues. Raman spectra can be used as a fingerprint tool for a very wide range of compounds. Raman spectroscopy enables all the polymers that build the cell walls of plants to be tracked simultaneously; it facilitates the analysis of both the molecular composition and the molecular structure of cell walls. Due to its high sensitivity to even minute structural changes, this method is used for comparative tests. The introduction of new and improved Raman techniques by scientists as well as the constant technological development of the apparatus has resulted in an increased importance of Raman spectroscopy in the discovery and defining of tissues and the processes taking place in them.

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Surface‐EnhancedRaman Scattering

Smith¹,

Rodger²

2001

Handbook of Vibrational Spectroscopy

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The sections in this article are Introduction Mechanisms of Surface Enhancement Electromagnetic Enhancement Charge Transfer Mechanism SERS ‐Active Substrates Electrodes Colloids Silver Colloid Applications Surface Enhanced R aman Scattering Surface Enhanced Resonance R aman Spectroscopy Advantages of SERRS Biology Medicinal Chemistry Surface Chemistry Analysis Polymers Conclusions

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Surface-enhanced resonance hyper-Raman scattering and surface-enhanced resonance Raman scattering of dyes adsorbed on silver electrode and silver colloid: a comparison study

Cited by 52 publications

References 26 publications

Fabrication and Characterization of Biplasmonic Substrates Obtained by Picosecond Laser Pulses

Fabrication and Characterization of Biplasmonic Substrates Obtained by Picosecond Laser Pulses

Overview of Popular Techniques of Raman Spectroscopy and Their Potential in the Study of Plant Tissues

Surface‐EnhancedRaman Scattering

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