scholarly journals Creating Well-Defined Hot Spots for Surface-Enhanced Raman Scattering by Single-Crystalline Noble Metal Nanowire Pairs

2009 ◽  
Vol 113 (18) ◽  
pp. 7492-7496 ◽  
Author(s):  
Taejoon Kang ◽  
Ilsun Yoon ◽  
Ki-Seok Jeon ◽  
Wonjun Choi ◽  
Yonghoon Lee ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Noble Metal ◽  
Hot Spots ◽  
Surface Enhanced Raman Scattering ◽  
Single Crystalline ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
Metal Nanowire

Engineering 'hot spots' for surface-enhanced Raman scattering

2003 ◽  
Author(s):  
Qi-Huo Wei ◽  
Kai-Hung Su ◽  
Xiao-Xiao Zhang ◽  
Xiang Zhang
Keyword(s):  
Raman Scattering ◽  
Hot Spots ◽  
Surface Enhanced Raman Scattering ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Finite-Size Effects and Surface-Enhanced Raman Scattering in Noble-Metal Nanoparticles

2004 ◽  
Vol 818 ◽  
Author(s):  
Vitaliy N. Pustovit ◽  
Tigran V. Shahbazyan
Keyword(s):  
Raman Scattering ◽  
Metal Nanoparticles ◽  
Noble Metal ◽  
Finite Size ◽  
Surface Enhanced Raman Scattering ◽  
Noble Metal Nanoparticles ◽  
Raman Signal ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

AbstractWe study the role of a strong electron confinement on the surface-enhanced Raman scattering from molecules adsorbed on small noble-metal nanoparticles. We describe a novel enhancement mechanism which originates from the different effect that confining potential has on s-band and d-band electrons. We demonstrate that the interplay between finite-size and screening efects in the nanoparticle surface layer leads to an enhancement of the surface plasmon local field acting on a molecule located in a close proximity to the metal surface. Our calculations show that the additional enhancement of the Raman signal is especially strong for small nanometer-sized nanoparticles.

Optimization of electromagnetic hot spots in surface-enhanced Raman scattering substrates for an ultrasensitive drug assay of emergency department patients’ plasma

The Analyst ◽  
2020 ◽  
Vol 145 (23) ◽  
pp. 7662-7672
Author(s):  
Thakshila Liyanage ◽  
Adrianna N. Masterson ◽  
Sumon Hati ◽  
Greta Ren ◽  
Nicholas E. Manicke ◽  
...  
Keyword(s):  
Emergency Department ◽  
Raman Scattering ◽  
Hot Spots ◽  
Surface Enhanced Raman Scattering ◽  
Ultrasensitive Detection ◽  
Drug Assay ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
Emergency Department Patients

Nanoplasmonic superlattice surface-enhanced Raman scattering substrates have been developed for an ultrasensitive detection of fentanyl and cocaine from patients’ plasma.

scholarly journals Generation of Hot Spots with Silver Nanocubes for Single-Molecule Detection by Surface-Enhanced Raman Scattering

2011 ◽  
Vol 50 (24) ◽  
pp. 5473-5477 ◽  
Author(s):  
Matthew Rycenga ◽  
Xiaohu Xia ◽  
Christine H. Moran ◽  
Fei Zhou ◽  
Dong Qin ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Single Molecule ◽  
Hot Spots ◽  
Surface Enhanced Raman Scattering ◽  
Single Molecule Detection ◽  
Silver Nanocubes ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Binary “island” shaped arrays with high-density hot spots for surface-enhanced Raman scattering substrates

Nanoscale ◽  
2018 ◽  
Vol 10 (29) ◽  
pp. 14220-14229 ◽  
Author(s):  
Weidong Zhao ◽  
Shuyuan Xiao ◽  
Yuxian Zhang ◽  
Dong Pan ◽  
Jiahui Wen ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Hot Spots ◽  
Surface Enhanced Raman Scattering ◽  
High Density ◽  
Self Assembled Monolayer ◽  
Sers Substrates ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
Self Assembled

The BISA with high-density hot spots as reproducible SERS substrates by combining an opal structure with self-assembled monolayer AuNPs is demonstrated.

scholarly journals Formation of Interstitial Hot-Spots Using the Reduced Gap-Size between Plasmonic Microbeads Pattern for Surface-Enhanced Raman Scattering Analysis

Sensors ◽  
2019 ◽  
Vol 19 (5) ◽  
pp. 1046 ◽  
Author(s):  
Taeksu Lee ◽  
Sanghee Jung ◽  
Soongeun Kwon ◽  
Woochang Kim ◽  
Jinsung Park ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Hot Spots ◽  
Hybrid Approach ◽  
Chemical Deposition ◽  
Surface Enhanced Raman Scattering ◽  
Imprint Lithography ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
Nano Imprint

To achieve an effective surface-enhanced Raman scattering (SERS) sensor with periodically distributed “hot spots” on wafer-scale substrates, we propose a hybrid approach combining physical nano-imprint lithography and a chemical deposition method to form a silver microbead array. Nano-imprint lithography (NIL) can lead to mass-production and high throughput, but is not appropriate for generating strong “hot-spots.” However, when we apply electrochemical deposition to an NIL substrate and the reaction time was increased to 45 s, periodical “hot-spots” between the microbeads were generated on the substrates. It contributed to increasing the enhancement factor (EF) and lowering the detection limit of the substrates to 4.40 × 106 and 1.0 × 10−11 M, respectively. In addition, this synthetic method exhibited good substrate-to-substrate reproducibility (RSD < 9.4%). Our research suggests a new opportunity for expanding the SERS application.

“Rings of saturn-like” nanoarrays with high number density of hot spots for surface-enhanced Raman scattering

2014 ◽  
Vol 105 (3) ◽  
pp. 033515 ◽  
Author(s):  
Zhigao Dai ◽  
Fei Mei ◽  
Xiangheng Xiao ◽  
Lei Liao ◽  
Lei Fu ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Hot Spots ◽  
Surface Enhanced Raman Scattering ◽  
Number Density ◽  
High Number Density ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering
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