Enhancement in SERS intensities of azo dyes adsorbed on ZnO by plasma treatment

Liu, Chih-Sheng; Li, Bing-Han; Chen, Chih‐Hsuan; Peng, Jr-Wei; Lee, Szetsen

doi:10.1002/jrs.4465

Cited by 15 publications

(19 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The insets are structure models of three molecules. Figure 2 a shows the characteristic peaks of MO at Raman shifts of ~1111, 1146, 1192, 1374, and 1590 cm −1 , corresponding to the C-C bending, C-S stretching, N-N in-plane bending, C-C stretching, and C-C in-plane bending modes, respectively [ 27 – 29 ]. Figure 2 b shows the characteristic peaks of MB at Raman shifts of ~449 and ~502 cm −1 of the C-N-C skeletal bending mode, ~1181 cm −1 of the C-N stretching mode, ~1400 cm −1 due to the deformation of CH3, and ~1624 cm −1 due to the stretching vibration of the ring, respectively [ 30 – 32 ].…”

Section: Resultsmentioning

confidence: 99%

Compositional Analysis of Ternary and Binary Chemical Mixtures by Surface-Enhanced Raman Scattering at Trace Levels

Hou

Huang

et al. 2015

Nanoscale Res Lett

View full text Add to dashboard Cite

Surface-enhanced Raman scattering has been proven a powerful means in the fast detection and recognition of chemicals at trace levels, while quantitative analysis especially the compositional analysis of trace chemical mixtures remains a challenge. We report here a “triangle-rule” based on the principal component analysis (PCA) of surface-enhanced Raman scattering spectra, to calculate the composition of individual component of ternary chemical mixtures at trace levels, which can be simplified into the “balance-rule” for binary mixtures. We demonstrated the validity of the triangle-rule and balance-rule in estimating the composition of ternary and binary mixtures of methyl orange, methylene blue, and crystal violet with different molecular structures, and the validity for ternary and binary mixtures of three isomers of monochlorobiphenyl with very similar molecular structures. This idea might be also applicable to mixtures of more components at the trace levels.

show abstract

Section: Resultsmentioning

confidence: 99%

Compositional Analysis of Ternary and Binary Chemical Mixtures by Surface-Enhanced Raman Scattering at Trace Levels

Hou

Huang

et al. 2015

Nanoscale Res Lett

View full text Add to dashboard Cite

show abstract

“…42 The 1315, 1275 and 1200 cm À1 bands are assigned to C-N stretch, Cring in-plane bend and N-N bend, respectively. 43 The bands at 830 cm À1 , 1114 cm À1 and 1315 cm À1 are attributed to the N-ring mode, the peak at 925 cm À1 belongs to CNC. The UV-Vis spectra of MR, Ag/Au Fr5 and MR + Ag/Au Fr5 complex have been measured (Fig.…”

Section: Sers Application In Mr Detectionmentioning

confidence: 98%

Tunable LSPR of silver/gold bimetallic nanoframes and their SERS activity for methyl red detection

Dien²,

Phạm

et al. 2021

RSC Adv.

View full text Add to dashboard Cite

show abstract

“…Their SERS substrates combine high sensitivity with excellent uniformity. Glycerol plays an important role in liquid super lubrication systems [65][66][67]. SERS substrates with higher sensitivity and good uniformity exhibit excellent performance in detecting glycerol.…”

Section: Application Of Sers In Lubricant Detectionmentioning

confidence: 99%

Surface- and Tip-Enhanced Raman Scattering in Tribology and Lubricant Detection—A Prospective

Zhang

Rosenkranz

et al. 2019

Lubricants

View full text Add to dashboard Cite

Surface-enhanced Raman scattering (SERS) and tip-enhanced Raman scattering (TERS) are fast, convenient, and non-destructive molecular detection techniques, which provide a practical method for studying interfacial reactions with high resolution and accuracy. Both techniques are able to provide quantitative and qualitative information on the chemical properties, conformational changes, order state, and molecular orientation of various surfaces. This paper aims at summarizing the research efforts in the field of SERS and TERS related to tribological systems with a special emphasis on thin film and nanoparticles. This overview starts with a brief introduction for both techniques. Afterwards, it summarizes pros and cons of both techniques related to the advanced characterization of tribologically induced reactions layers. Moreover, the feasibility of both techniques to evaluate the friction and wear performance of new lubricant additives including solid lubricants is discussed. At the end of this review article, the main challenges and future directions in this field are prospected to emphasize the development direction of SERS and TERS in tribology and lubricants. Lubricants 2019, 7, 81 2 of 16For this purpose and depending on the material used, various techniques including white light interferometry and laser scanning microscopy (surface topography), Raman spectroscopy, Sum frequency generation (SFG) spectroscopy, X-ray photoelectron spectroscopy and infrared-spectroscopy (surface chemistry) as well as X-ray diffraction, electron backscatter diffraction and transmission electron microscopy (microstructure) can be utilized. It needs to be emphasized that a multi-method approach is recommendable since only one characterization technique will never be able to reveal the full picture regarding the desired information [12].Apart from the fact that there is no powerful in-situ characterization technique to assess any of this information during sliding/rubbing, the entire situation is further complicated since friction and wear are influenced by effects on different scales ranging from macro-to nanoscale [13,14]. Regarding the macro-scale, fabrication tolerances and design aspects can be named as potential effects influencing the resulting coefficient of friction and wear. Related to the micron-scale, the surface topography and surface roughness mainly affect the resulting nominal and real contact area [15]. In this regard, it must be emphasized that the real contact happens at the asperity level, which is typically sub-micron and on the nanoscale. The contact at the asperity level typically induces rather high contact pressure. This can lead to pressure-induced reactions thus generating sub-surface reaction layers, which may substantially influence the corresponding tribological properties [16]. These aspects unambiguously underline that the effects occurring at the nanoscale also significantly alter the resulting friction and wear performance. Consequently, the aforementioned surface topography, surface chemistry, and m...

show abstract

Enhancement in SERS intensities of azo dyes adsorbed on ZnO by plasma treatment

Cited by 15 publications

References 39 publications

Compositional Analysis of Ternary and Binary Chemical Mixtures by Surface-Enhanced Raman Scattering at Trace Levels

Compositional Analysis of Ternary and Binary Chemical Mixtures by Surface-Enhanced Raman Scattering at Trace Levels

Tunable LSPR of silver/gold bimetallic nanoframes and their SERS activity for methyl red detection

Surface- and Tip-Enhanced Raman Scattering in Tribology and Lubricant Detection—A Prospective

Contact Info

Product

Resources

About