Nanoholes arrays as effective SERS substrates with multiple wavelength SERS response and large electromagnetic SERS enhancement factors

2019 ◽  
Author(s):  
Nitin Gupta ◽  
Rajib R. Ghosh ◽  
Anuj Dhawan
Keyword(s):  
Sers Substrates ◽  
Sers Enhancement ◽  
Multiple Wavelength ◽  
Enhancement Factors

scholarly journals Strong Dependence of Surface Enhanced Raman Scattering on Structure of Graphene Oxide Film

Materials ◽  
2018 ◽  
Vol 11 (7) ◽  
pp. 1199 ◽  
Author(s):  
Ling Wang ◽  
Yan Zhang ◽  
Yongqiang Yang ◽  
Jing Zhang
Keyword(s):  
Graphene Oxide ◽  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
Dye Molecules ◽  
Sers Substrates ◽  
Sers Enhancement ◽  
Surface Enhanced ◽  
Enhancement Factors ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Graphene and its derivatives have been demonstrated to be good surface-enhanced Raman scattering (SERS) substrates. However, the literature offers some contrasting views on the SERS effect of graphene-based materials. Thus, understanding the mechanism of the SERS enhancement of graphene is essential for exploring its application as a SERS substrate. In this study, graphene oxide (GO) and chemically reduced graphene oxide (CRGO) films with different morphologies and structures were prepared and applied as SERS substrates to detect Raman dye molecules. The observed enhancement factors can be as large as 10~103. The mechanism of SERS enhancement is discussed. It is shown that the SERS effect was independent of the adsorption of dye molecules and the surface morphologies of graphene-based films. Raman shifts are observed and are almost the same on different graphene-based films, indicating the existence of charge transfer between dye molecules and substrates. The Raman enhancement factors and sensitivities of dye molecules on different films are consistently within the IG/ID ratios of graphene-based substrates, indicating that the dramatically enhanced Raman spectra on graphene-based films are strongly dependent on the average size of sp2 carbon domain.

Investigating the effect of Ag nanocube polydispersity on gap-mode SERS enhancement factors

The Analyst ◽  
2016 ◽  
Vol 141 (12) ◽  
pp. 3916-3924 ◽  
Author(s):  
Tyler J. Dill ◽  
Matthew J. Rozin ◽  
Eric R. Brown ◽  
Stephen Palani ◽  
Andrea R. Tao
Keyword(s):  
Raman Spectroscopy ◽  
Surface Enhanced Raman Spectroscopy ◽  
Sers Substrates ◽  
Sers Enhancement ◽  
Raman Enhancement ◽  
Surface Enhanced ◽  
Enhancement Factors ◽  
Surface Enhanced Raman ◽  
Ag Nanocube ◽  
Gap Mode

Colloidal polydispersity has a significant impact on the high Raman enhancement factors (EFs) for nanoparticle-based surface-enhanced Raman spectroscopy (SERS) substrates.

scholarly journals Correction: Towards improved precision in the quantification of surface-enhanced Raman scattering (SERS) enhancement factors: a renewed approach

The Analyst ◽  
2015 ◽  
Vol 140 (2) ◽  
pp. 670-670 ◽  
Author(s):  
Arumugam Sivanesan ◽  
Witold Adamkiewicz ◽  
Govindasamy Kalaivani ◽  
Agnieszka Kamińska ◽  
Jacek Waluk ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
Sers Enhancement ◽  
Surface Enhanced ◽  
Enhancement Factors ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Correction for ‘Towards improved precision in the quantification of surface-enhanced Raman scattering (SERS) enhancement factors: a renewed approach’ by Arumugam Sivanesan et al., Analyst, 2015, DOI: 10.1039/c4an01778a.

Surface roughness boosts the SERS performance of imprinted plasmonic architectures

2016 ◽  
Vol 4 (18) ◽  
pp. 3970-3975 ◽  
Author(s):  
Gerard Macias ◽  
María Alba ◽  
Lluís F. Marsal ◽  
Agustín Mihi
Keyword(s):  
Surface Roughness ◽  
Plasmonic Crystals ◽  
Sers Substrates ◽  
Enhancement Factors

Rough 2D plasmonic crystals pose as inexpensive and easily processed SERS substrates exhibiting enhancement factors up to 1.6 × 1010.

scholarly journals Towards improved precision in the quantification of surface-enhanced Raman scattering (SERS) enhancement factors: a renewed approach

The Analyst ◽  
2015 ◽  
Vol 140 (2) ◽  
pp. 489-496 ◽  
Author(s):  
Arumugam Sivanesan ◽  
Witold Adamkiewicz ◽  
Govindasamy Kalaivani ◽  
Agnieszka Kamińska ◽  
Jacek Waluk ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
Sers Enhancement ◽  
Surface Enhanced ◽  
Enhancement Factors ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

This paper demonstrates a renewed procedure for the quantification of surface-enhanced Raman scattering (SERS) enhancement factors with improved precision.

Advanced aspects of electromagnetic SERS enhancement factors at a hot spot

2008 ◽  
Vol 39 (9) ◽  
pp. 1127-1134 ◽  
Author(s):  
E. C. Le Ru ◽  
M. Meyer ◽  
E. Blackie ◽  
P. G. Etchegoin
Keyword(s):  
Hot Spot ◽  
Sers Enhancement ◽  
Enhancement Factors

Robust and Reproducible Quantification of SERS Enhancement Factors Using a Combination of Time-Resolved Raman Spectroscopy and Solvent Internal Reference Method

2013 ◽  
Vol 117 (7) ◽  
pp. 3483-3488 ◽  
Author(s):  
Fathima S. Ameer ◽  
Wenfang Hu ◽  
Siyam M. Ansar ◽  
Kumudu Siriwardana ◽  
Willard E. Collier ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Reference Method ◽  
Internal Reference ◽  
Time Resolved ◽  
Sers Enhancement ◽  
Enhancement Factors

SERS Enhancement Factors Studies of Silver Nanoprism and Spherical Nanoparticle Colloids in The Presence of Bromide Ions

2009 ◽  
Vol 113 (22) ◽  
pp. 9520-9525 ◽  
Author(s):  
Shih-Hong Ciou ◽  
Yi-Wei Cao ◽  
Huai-Cing Huang ◽  
De-Yan Su ◽  
Cheng-Liang Huang
Keyword(s):  
Sers Enhancement ◽  
Enhancement Factors ◽  
Bromide Ions

scholarly journals Highly Sensitive Surface Enhanced Raman Spectroscopy from Ag Nanoparticles Decorated Graphene Sheet

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Hui Song ◽  
Xin Li ◽  
Sweejiang Yoo ◽  
Yuan Wu ◽  
Weihua Liu ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Size Distribution ◽  
Ag Nanoparticles ◽  
Surface Enhanced Raman Spectroscopy ◽  
Sers Substrate ◽  
Ag Nps ◽  
Sers Enhancement ◽  
Surface Enhanced ◽  
Enhancement Factors ◽  
Surface Enhanced Raman

Surface enhanced Raman spectroscopy (SERS) is a powerful analytical technique and has been most intensively studied. In this work, electroless deposition is proposed for Ag nanoparticles (NPs) decorated on chemical vapor deposition (CVD) growth graphene sheets (GS) to create hybrid SERS substrate. From three aspects of size distribution, morphology, and coverage, Ag NPs controllable decoration on GS and SERS enhancement factors of the hybrid SERS substrate is investigated. 200–300 times enhanced SERS intensities are detected from the Ag NPs on GS hybrid as compared to pure GS. Controllable decoration is crucial for improving SERS enhancement factorsβEF, becauseβEFfrom quasi cubic Ag NPs on GS is 6.53 times stronger than that from spheric one; 1.6 timesβEFis detected while the Ag NPs size distribution is reduced to half, and when the coverage is doubled,βEFis nearly doubled. This controllable Ag NPs/GS hybrid is capable of serving as a high performance SERS substrate for efficient chemical and biological sensing applications.

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