Coral-like plasmonic probes for tip-enhanced Raman spectroscopy

Nanoscale ◽  
2020 ◽  
Vol 12 (48) ◽  
pp. 24376-24384
Author(s):  
Angela Capaccio ◽  
Antonio Sasso ◽  
Oreste Tarallo ◽  
Giulia Rusciano
Keyword(s):  
Raman Spectroscopy ◽  
Spatial Resolution ◽  
Single Molecule ◽  
Chemical Information ◽  
Single Molecule Level ◽  
Tip Enhanced Raman Spectroscopy ◽  
System Interfaces

Tip-enhanced Raman spectroscopy is a powerful tool for the analysis of system interfaces, enabling access to chemical information with nanometric spatial resolution and sensitivity up to the single molecule level.

scholarly journals Low cost tips for tip-enhanced Raman spectroscopy fabricated by two-step electrochemical etching of 125 µm diameter gold wires

2018 ◽  
Vol 9 ◽  
pp. 2718-2729 ◽  
Author(s):  
Antonino Foti ◽  
Francesco Barreca ◽  
Enza Fazio ◽  
Cristiano D’Andrea ◽  
Paolo Matteini ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Spatial Resolution ◽  
Single Molecule ◽  
Electrochemical Etching ◽  
Low Cost ◽  
Cost Effective ◽  
Radius Of Curvature ◽  
Enhancement Factors ◽  
Tip Enhanced Raman Spectroscopy ◽  
Gold Wires

Tip-enhanced Raman spectroscopy (TERS) has become a well-applied technique for nanospectroscopy, allowing for single molecule sensitivity with sub-nanometer spatial resolution. The demand for efficient, reproducible and cost-effective probes for TERS is increasing. Here we report on a new electrochemical etching protocol to fabricate TERS tips starting from 125 µm diameter gold wires in a reproducible way. The process is reliable (50% of the tips have radius of curvature <35 nm, 66% <80 nm), fast (less than 2 min) and 2.5 times cheaper than the etching of standard 250 µm diameter wires. The TERS performance of the tips is tested on dyes, pigments and biomolecules and enhancement factors higher than 105 are observed. TERS mapping with a spatial resolution of 5 nm is demonstrated.

Electrochemical Tip-Enhanced Raman Spectroscopy: An In Situ Nanospectroscopy for Electrochemistry

2021 ◽  
Vol 72 (1) ◽  
Author(s):  
Sheng-Chao Huang ◽  
Yi-Fan Bao ◽  
Si-Si Wu ◽  
Teng-Xiang Huang ◽  
Matthew M. Sartin ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Surface Science ◽  
Spatial Resolution ◽  
Rational Design ◽  
Annual Review ◽  
Chemical Information ◽  
Publication Date ◽  
Molecular Fingerprint ◽  
Tip Enhanced Raman Spectroscopy

Revealing the intrinsic relationships between the structure, properties, and performance of the electrochemical interface is a long-term goal in the electrochemistry and surface science communities because they could facilitate the rational design of electrochemical devices. Achieving this goal requires in situ characterization techniques that provide rich chemical information and high spatial resolution. Electrochemical tip-enhanced Raman spectroscopy (EC-TERS), which provides molecular fingerprint information with nanometer-scale spatial resolution, is a promising technique for achieving this goal. Since the first demonstration of this technique in 2015, EC-TERS has been developed for characterizing various electrochemical processes at the nanoscale and molecular level. Here, we review the development of EC-TERS over the past 5 years. We discuss progress in addressing the technical challenges, including optimizing the EC-TERS setup and solving tip-related issues, and provide experimental guidelines. We also survey the important applications of EC-TERS for probing molecular protonation, molecular adsorption, electrochemical reactions, and photoelectrochemical reactions. Finally, we discuss the opportunities and challenges in the future development of this young technique. Expected final online publication date for the Annual Review of Physical Chemistry, Volume 72 is April 2021. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

Probing Adsorption Configurations of Small Molecules on Surfaces by Single-Molecule Tip-Enhanced Raman Spectroscopy

ChemPhysChem ◽  
2018 ◽  
Vol 20 (1) ◽  
pp. 37-41 ◽  
Author(s):  
Yao Zhang ◽  
Rui Zhang ◽  
Song Jiang ◽  
Yang Zhang ◽  
Zhen-Chao Dong
Keyword(s):  
Raman Spectroscopy ◽  
Small Molecules ◽  
Single Molecule ◽  
Tip Enhanced Raman Spectroscopy

scholarly journals Surface-enhanced Raman spectroscopy: benefits, trade-offs and future developments

2020 ◽  
Vol 11 (18) ◽  
pp. 4563-4577 ◽  
Author(s):  
Ana Isabel Pérez-Jiménez ◽  
Danya Lyu ◽  
Zhixuan Lu ◽  
Guokun Liu ◽  
Bin Ren
Keyword(s):  
Raman Spectroscopy ◽  
Single Molecule ◽  
Surface Enhanced Raman Spectroscopy ◽  
Direct Identification ◽  
Molecular Fingerprints ◽  
Single Molecule Level ◽  
Trade Offs ◽  
Target Analytes ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

Surface-enhanced Raman spectroscopy (SERS) is a vibrational spectroscopy technique with sensitivity down to the single molecule level that provides fine molecular fingerprints, allowing for direct identification of target analytes.

Advancing Single Molecule Tip-Enhanced Raman Spectroscopy under Ultra-High Vacuum

2010 ◽  
Author(s):  
Philip Schambach ◽  
Nicola R. Scott ◽  
Bruno Pettinger ◽  
P. M. Champion ◽  
L. D. Ziegler
Keyword(s):  
Raman Spectroscopy ◽  
Single Molecule ◽  
High Vacuum ◽  
Ultra High Vacuum ◽  
Tip Enhanced Raman Spectroscopy

Single Molecule Surface- and Tip-enhanced Raman Spectroscopy

2010 ◽  
Author(s):  
Bruno Pettinger ◽  
Philip Schambach ◽  
Nicola R. Scott ◽  
P. M. Champion ◽  
L. D. Ziegler
Keyword(s):  
Raman Spectroscopy ◽  
Single Molecule ◽  
Tip Enhanced Raman Spectroscopy ◽  
Molecule Surface

Nanoscale chemical imaging of solid–liquid interfaces using tip-enhanced Raman spectroscopy

Nanoscale ◽  
2018 ◽  
Vol 10 (4) ◽  
pp. 1815-1824 ◽  
Author(s):  
Naresh Kumar ◽  
Weitao Su ◽  
Martin Veselý ◽  
Bert M. Weckhuysen ◽  
Andrew J. Pollard ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Spatial Resolution ◽  
Chemical Imaging ◽  
Liquid Interfaces ◽  
New Approach ◽  
Immersed Surfaces ◽  
Nanoscale Chemical Imaging ◽  
Tip Enhanced Raman Spectroscopy ◽  
Solid Liquid

New approach to TERS probe coating enables chemical imaging of liquid-immersed surfaces with nanoscale spatial resolution.

Fishing-Mode Tip-enhanced Raman Spectroscopy (FM-TERS) for Studying Single-Molecule Junctions

2010 ◽  
Author(s):  
Zheng Liu ◽  
Zhao-Bin Chen ◽  
Song-Yuan Ding ◽  
Xiang Wang ◽  
Jing-Hua Tian ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Single Molecule ◽  
Single Molecule Junctions ◽  
Tip Enhanced Raman Spectroscopy

Nanoscale mapping of intrinsic defects in single-layer graphene using tip-enhanced Raman spectroscopy

2016 ◽  
Vol 52 (53) ◽  
pp. 8227-8230 ◽  
Author(s):  
Weitao Su ◽  
Naresh Kumar ◽  
Ning Dai ◽  
Debdulal Roy
Keyword(s):  
Raman Spectroscopy ◽  
Spatial Resolution ◽  
Single Layer ◽  
Single Layer Graphene ◽  
Intrinsic Defect ◽  
Intrinsic Defects ◽  
Layer Graphene ◽  
Tip Enhanced Raman Spectroscopy ◽  
20 Nm

Non-gap TERS with a contrast of 8.5 enables TERS mapping of graphene's intrinsic defect with a spatial resolution of 20 nm.

Sign in / Sign up

Export Citation Format

Share Document