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

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

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

Single Molecule Tip-Enhanced Raman Spectroscopy with Silver Tips

2007 ◽  
Vol 111 (4) ◽  
pp. 1733-1738 ◽  
Author(s):  
Weihua Zhang ◽  
Boon Siang Yeo ◽  
Thomas Schmid ◽  
Renato Zenobi
Keyword(s):  
Raman Spectroscopy ◽  
Single Molecule ◽  
Tip Enhanced Raman Spectroscopy

scholarly journals Single-Molecule Imaging Using Atomistic Near-Field Tip-Enhanced Raman Spectroscopy

ACS Nano ◽  
2017 ◽  
Vol 11 (5) ◽  
pp. 5094-5102 ◽  
Author(s):  
Pengchong Liu ◽  
Dhabih V. Chulhai ◽  
Lasse Jensen
Keyword(s):  
Raman Spectroscopy ◽  
Single Molecule ◽  
Near Field ◽  
Single Molecule Imaging ◽  
Tip Enhanced Raman Spectroscopy

Single-Molecule Tip-Enhanced Raman Spectroscopy

2011 ◽  
Vol 116 (1) ◽  
pp. 478-483 ◽  
Author(s):  
Matthew D. Sonntag ◽  
Jordan M. Klingsporn ◽  
Luis K. Garibay ◽  
John M. Roberts ◽  
Jon A. Dieringer ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Single Molecule ◽  
Tip Enhanced Raman Spectroscopy

scholarly journals Charge transfer and electromagnetic enhancement processes revealed in the SERS and TERS of a CoPc thin film

Nanophotonics ◽  
2019 ◽  
Vol 8 (9) ◽  
pp. 1533-1546 ◽  
Author(s):  
Yu-Ting Chen ◽  
Lin Pan ◽  
Anke Horneber ◽  
Marius van den Berg ◽  
Peng Miao ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Charge Transfer ◽  
Single Molecule ◽  
Excited Molecule ◽  
Surface Enhanced Raman Spectroscopy ◽  
Resonant Excitation ◽  
Localized Surface Plasmon ◽  
Surface Enhanced Raman ◽  
Tip Enhanced Raman Spectroscopy ◽  
532 Nm

AbstractPhthalocyanines are frequently used as probing molecules in the field of single-molecule surface-enhanced Raman spectroscopy (SERS) and tip-enhanced Raman spectroscopy (TERS). In this work, we systematically compare the SERS and TERS spectra from a thin cobalt phthalocyanine (CoPc) film that is deposited on a Au film. The contributions from electromagnetic (EM), resonance, and charge-transfer enhancements are discussed. Radially and azimuthally polarized vector beams are used to investigate the influences of molecular orientation and the localized surface plasmon resonance (SPR). Furthermore, two different excitation wavelengths (636 and 532 nm) are used to study the resonant excitation effect as well as the involvement of the charge-transfer processes between CoPc and the Au substrate. It is shown that the Raman peaks of CoPc are mostly enhanced by 636 nm excitation through a combination of resonant excitation, high EM enhancement, and chemical enhancement via charge transfer from the metal to the molecule. At 532 nm excitation, however, the SERS and TERS spectra are dominated by photoluminescence, which originates from a photo-induced charge-transfer process from the optically excited molecule to the metal. The contributions of the different enhancement mechanisms explain the optical contrasts seen in the TERS images of Au nanodisks covered by the CoPc film. The insight achieved in this work will help to understand the optical contrast in sub- or single-molecule TERS imaging and apply SERS or TERS in the field of photocatalysis.

Sign in / Sign up

Export Citation Format

Share Document